Last updated: 07/01/2017

Before 2007     2008     2009     2010     2011     2012     2013     2014     2015     2016     2017     2018

Seminars 2008     2009     2010     2011     2012     2013     2014     2015     2016     2017     2018

Invited talks 2008     2010     2011     2012     2013     2014     2015     2016     2017     2018

 

Spin-photonics Spin photonics

Spin-currents Spin-polarised currents

Magnetoresistance Magnetoresistance

Half-metals Half-metals

Domain structures Domain structures

Miscellaneous Miscellaneous

 

Presentations Before 2007

Quantum Spin Interference in Non-Magnetic Rings

  1. Spin-currents A. Hirohata,
    "Spin-current interference in a non-magnetic nano-ring (invited),"
    Science and Technology Seminar in Waseda University Graduate School (08/06/2007, Tokyo, Japan).
  2. Spin-currents A. Hirohata, T. Yang, T. Kimura and Y. Otani,
    "Spin-current interference in a Cu nano-ring,"
    2007 Spring Conference of the Physical Society of Japan (19/03/2007, Kagoshima, Japan).
  3. Spin-currents A. Hirohata,
    "Spin-current interference in a non-magnetic nano-ring (invited),"
    Cooperative Research Project Program of the Research Institute of Electrical Communication in Tohoku University (14/03/2007, Sendai, Japan).
  4. Spin-currents A. Hirohata,
    "Quest to a spin-current operator,"
    International Nanotechnology Exhibition and Conference (nanotech 2007) (21-23/02/2007, Tokyo, Japan).
  5. Spin-currents A. Hirohata, T. Yang, T. Kimura and Y. Otani,
    "Spin-current interference in a Cu nano-ring,"
    2006 Autumn Conference of the Physical Society of Japan (23/09/2006, Chiba, Japan).
  6. Spin-currents A. Hirohata, T. Yang, T. Kimura and Y. Otani,
    "Spin-current interference in a non-magnetic nano-ring,"
    30th Annual Conference of the Magnetic Society of Japan (11/09/2006, Matsue, Japan).
  7. Spin-currents A. Hirohata, T. Yang, T. Kimura and Y. Otani,
    "Spin-polarized quantum interference effect in a Cu nano-ring,"
    International Conference on Magnetism (ICM) 2006 (22/08/2006, Kyoto, Japan).
  8. Spin-currents A. Hirohata, T. Yang, T. Kimura and Y. Otani,
    "Spin-polarized quantum interference effect in a Cu nano-ring,"
    19th International Colloqium on Magnetic Films and Surfaces (ICMFS 2006) (17/08/2006, Sendai, Japan).
  9. Spin-currents A. Hirohata, T. Yang, T. Kimura and Y. Otani,
    "Quantum spin interference in a Cu nano-ring,"
    61st Annual Conference of the Physical Society of Japan (28/03/2006, Matsuyama, Japan).

Heusler Alloy Thin Films

  1. Half-metals A. Hirohata, K. Sekiguchi, T. Yang and Y. Otani,
    "Structural and Magnetic Properties of Epitaxial Co-Based Full-Heusler Alloy Films,"
    1st WUN International Conference on Spintronic Materials and Technology (WUN-SPIN07) (10/08/2007, York).
  2. Half-metals A. Hirohata, H. Kurebayashi, S. Okamura, N. Tezuka and K. Inomata,
    "Magnetic properties of epitaxial Co2Cr1-xFexAl full Heusler alloy thin films with the L21 structure,"
    International Magnetics Conference (INTERMAG) 2005 (08/04/2005, Nagoya, Japan).
  3. Half-metals A. Hirohata, H. Kurebayashi, S. Okamura, N. Tezuka and K. Inomata,
    "Magnetic properties of epitaxial Co2Cr1-xFexAl full-Heusler alloy films,"
    60th Annual Conference of the Physical Society of Japan (24/03/2005, Noda, Japan).
  4. Half-metals A. Hirohata, H. Kurebayashi, S. Okamura, M. Kikuchi, T. Masaki, T. Nozaki, N. Tezuka, K. Inomata, J. S. Claydon and Y. B. Xu,
    "Structural and magnetic properties of epitaxial L21-structured Co2(Cr,Fe)Al thin films on GaAs(001),"
    49th Annual Conference on Magnetism and Magnetic Materials (MMM'04) (08/11/2004, Jacksonville, FL, USA).
  5. Half-metals A. Hirohata, H. Kurebayashi, S. Okamura, M. Kikuchi, T. Masaki, T. Nozaki, N. Tezuka and K. Inomata,
    "Structural and magnetic properties of L21-structured Co2(Cr,Fe)Al thin films,"
    28th Annual Conference of the Magnetic Society of Japan (23/09/2004, Okinawa, Japan).
  6. Half-metals A. Hirohata, H. Kurebayashi, S. Okamura, N. Tezuka and K. Inomata,
    "Structural and magnetic properties of Co2(Cr,Fe)Al full-Heusler alloys grown on GaAs(100) substrates,"
    Autumn Conference of the Physical Society of Japan (13/09/2004, Aomori, Japan).
  7. Half-metals H. Kurebayashi, A. Hirohata, S. Okamura, N. Tezuka, S. Sugimoto and K. Inomata,
    "Structural and magnetic properties of Co2(Cr,Fe)Al alloy thin films grown on GaAs(001),"
    2004 Spring Meeting of of the Japan Institute of Metals (01/04/2004, Tokyo, Japan).
  8. Half-metals A. Hirohata, H. Kurebayashi, S. Okamura, N. Tezuka and K. Inomata,
    "Structural and magnetic properties of Co2(Cr,Fe)Al full-Heusler alloys grown on GaAs(100) substrates,"
    59th Annual Conference of the Physical Society of Japan (28/03/2004, Fukuoka, Japan).
  9. Half-metals K. Inomata, S. Okamura, A. Hirohata, H. Kurebayashi and N. Tezuka,
    "Magnetoresistance in tunnel junctions using Co2(Cr,Fe)Al full-Heusler alloys,"
    9th Joint MMM-Intermag Conference (08/01/2004, Anaheim, CA, USA).
  10. Half-metals A. Hirohata, H. Kurebayashi, S. Okamura, N. Tezuka and K. Inomata,
    "Structural and magnetic properties of Co2CrAl and Co2FeAl full-Heusler alloys grown on GaAs(100) substrates,"
    International Workshop on Nano-Scale Magnetoelectronics (26/11/2003, Nagoya, Japan).

Current-Induced Magnetization Switching

  1. Magnetoresistance T. Yang, A. Hirohata, M. Hara, T. Kimura and Y. Otani,
    "Switching behaviors of Co nanorings in the current-perpendicular-to-plane configuration,"
    2007 Spring Conference of the Physical Society of Japan (18/03/2007, Kagoshima, Japan).
  2. Magnetoresistance T. Yang, A. Hirohata, M. Hara, T. Kimura and Y. Otani,
    "Switching behaviors of Co nanorings in the current-perpendicular-to-plane configuration,"
    American Physical Society (APS) March Meeting 2007 (07/03/2007, Denver, CO, USA).
  3. Magnetoresistance T. Yang, A. Hirohata, T. Kimura and Y. Otani,
    "Estimating the respective contributions of spin accumulation and spin-polarized current to the spin torque,"
    30th Annual Conference of the Magnetic Society of Japan (13/09/2006, Matsue, Japan).
  4. Magnetoresistance T. Yang, A. Hirohata, T. Kimura and Y. Otani,
    "Spin-transfer-induced domain formation in magnetic thin film,"
    International Conference on Magnetism (ICM) 2006 (22/08/2006, Kyoto, Japan).
  5. Magnetoresistance T. Yang, A. Hirohata, T. Kimura and Y. Otani,
    "Spin-transfer-induced domain formation in magnetic thin films,"
    19th International Colloquium on Magnetic Films and Surfaces (ICMFS 2006) (17/08/2006, Sendai, Japan).
  6. Magnetoresistance T. Ochiai, N. Tezuka, Y. Jiang, A. Hirohata, S. Sugimoto and K. Inomata,
    "Substantial reduction of critical current density for CPP-GMR with an antisymmetric structure,"
    49th Annual Conference on Magnetism and Magnetic Materials (MMM'04) (10/11/2004, Jacksonville, FL, USA).
  7. Magnetoresistance Y. Jiang, T. Ochiai, T. Nozaki, A. Hirohata, N. Tezuka and K. Inomata,
    "Current-induced magnetization switching in exchange-biased spin-valves,"
    49th Annual Conference on Magnetism and Magnetic Materials (MMM'04) (10/11/2004, Jacksonville, FL, USA).
  8. Magnetoresistance T. Ochiai, Y. Jiang, A. Hirohata, N. Tezuka, S. Sugimoto and K. Inomata,
    "Substantial reduction of critical current density for CPP-GMR with Ru layer insertion,"
    Autumn Meeting of the Japan Institute of Metals (29/09/2004, Akita, Japan).
  9. Magnetoresistance Y. Jiang, T. Ochiai, T. Nozaki, A. Hirohata, N. Tezuka and K. Inomata,
    "Substantial current reduction for spin-injection magnetization switching in exchange-biased spin-valves,"
    28th Annual Conference of the Magnetic Society of Japan (24/09/2004, Okinawa, Japan).
  10. Magnetoresistance T. Ochiai, Y. Jiang, A. Hirohata, N. Tezuka, S. Sugimoto and K. Inomata,
    "Current induced magnetization switching in the CPP-GMR device with a synthetic antiferromagnetic free layer,"
    28th Annual Conference of the Magnetic Society of Japan (21/09/2004, Okinawa, Japan).

Spin Injection into Semiconductors and Non-Magnetic Metals

  1. Spin-currents H. Kurebayashi, A. Hirohata, N. Tezuka, S. Sugimoto and K. Inomata,
    "Crystalline growth and magnetic/electrical transport properties of Fe/MgO layers grown on GaAs(100),"
    28th Annual Conference of the Magnetic Society of Japan (21/09/2004, Okinawa, Japan).

Tunnel magnetoresistance

  1. Magnetoresistance T. Nozaki, A. Hirohata, N. Tezuka, S. Sugimoto and K. Inomata,
    "Tunnel magnetoresistance in fully epitaxial MgO double barrier magnetic tunnel junctions,"
    International Magnetics Conference (INTERMAG) 2005 (08/04/2005, Nagoya, Japan).
  2. Magnetoresistance H. Sukegawa, S. Nakamura, A. Hirohata, N. Tezuka, S. Sugimoto and K. Inomata,
    "Tunnel magnetoresistance enhancement in ferromagnetic tunnel junctions with ferromagnetic nano-particle layer insertion,"
    International Magnetics Conference (INTERMAG) 2005 (08/04/2005, Nagoya, Japan).

Spin Filtering at Ferromagnet/Semiconductor Interfaces Using Photoexcitation

  1. Spin-photonics A. Hirohata and J. A. C. Bland,
    "Ballistic spin transport across Schottky barriers induced by photoexcitation (invited),"
    7th Oxford-Kobe Materials Seminar: Spintronic Materials and Technology (03/09/2004, Kobe, Japan).
  2. Spin-photonics S. J. Steinmuller, T. Trypiniotis, A. Hirohata, W. S. Cho, W. S. Lew, C. A. F. Vaz and J. A. C. Bland,
    "Ballistic electron spin filtering in hybrid spin valve/semiconductor structures,"
    9th Joint MMM-Intermag Conference (07/01/2004, Anaheim, CA, USA).
  3. Spin-photonics S. J. Steinmuller, T. Trypiniotis, A. Hirohata, W. S. Cho, W. S. Lew, C. A. F. Vaz and J. A. C. Bland,
    "Spin filtering of photoexcited electrons in hybrid spin valve/semiconductor structures,"
    18th International Colloquium on Magnetic Films and Surfaces (ICMFS) 2003 (22/07/2003, Madrid, Spain).
  4. Spin-photonics A. Hirohata, S. Steinmueller, W. S. Cho, C. M. Guertler, W. S. Lew, Y. B. Xu, J. A. C. Bland and S. N. Holmes,
    "Ballistic spin-polarised electron transport across ferromagnet/semiconductor interfaces,"
    17th International Colloquium on Magnetic Films and Surfaces (ICMFS 2002) (07/03/2002, Kyoto, Japan).
  5. Spin-photonics A. Hirohata, C. M. Guertler, W. S. Lew, Y. B. Xu, J. A. C. Bland and S. N. Holmes,
    "Test of ballistic spin-polarized electron transport across ferromagnet/semiconductor Schottky interfaces,"
    46th Annual Conference on Magnetism and Magnetic Materials (MMM'01) (14/11/2001, Seatle, WA, USA).
  6. Spin-photonics A. Hirohata, C. M. Guertler, W. S. Lew, Y. B. Xu, J. A. C. Bland and S. N. Holmes,
    "Ballistic spin-polarized electron transport in spin valve structures,"
    4th International Symposium on Metallic Multilayers (MML'01) (26/06/2001, Aachen, Germany).
  7. Spin-photonics A. Hirohata, C. M. Guertler, W. S. Lew, Y. B. Xu, J. A. C. Bland and S. N. Holmes,
    "Ballistic spin transport in Schottky and spin valve structures,"
    1st International Conference and School on Spintronics and Quantum Information Technology (SPINTECH-I) (16/05/2001, Maui, HI, USA).
  8. Spin-photonics A. Hirohata, W. S. Lew, Y. B. Xu, C. M. Guertler, J. A. C. Bland and S. N. Holmes,
    "Ballistic spin-polarized electron transport in spin-valve structures,"
    Materials Research Society (MRS) Spring Meeting 2001 (19/04/2001, San Francisco, CA, USA).
  9. Spin-photonics A. Hirohata, W. S. Lew, Y. B. Xu, C. M. Guertler, J. A. C. Bland and S. N. Holmes,
    "Observation of ballistic spin-polarized electron transport in spin-valve structures,"
    8th Joint MMM-Intermag Conference (08/01/2001, San Antonio, TX, USA).
  10. Spin-photonics J. A. C. Bland, A. Hirohata, C. M. Guertler, Y. B. Xu and M. Tselepi,
    "Spin-polarized electron transport in ferromagnet/semiconductor hybrid structures (invited),"
    8th Joint MMM-Intermag Conference (08/01/2001, San Antonio, TX, USA).
  11. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler, J. A. C. Bland and S. N. Holmes,
    "Observation of ballistic spin-polarized electron transport in ferromagnet/semiconductor hybrid structures,"
    Condensed Matter & Materials Physics Conference (CMMP) 2000 (20/12/2000, Bristol, England).
  12. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler, J. A. C. Bland and S. N. Holmes,
    "Spin-polarized electron transport in ferromagnet/semiconductor Schottky barrier structures,"
    International Colloquium on Magnetic Films and Surface (ICMFS) 2000 (15/08/2000, Natal, Brazil).
  13. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler and J. A. C. Bland,
    "Spin-polarized electron transport in ferromagnet/semiconductor Schottky barrier structures,"
    International Conference on Magnetism (ICM) 2000 (11/08/2000, Recife, Brazil).
  14. Spin-photonics J. A. C. Bland, A. Hirohata, C. M. Guertler, Y. B. Xu and M. Tselepi,
    "Spin-polarized electron transport in ferromagnet/semiconductor hybrid structures,"
    Symposium on Spin-Electronics (SSE) 2000 (05/07/2000, Halle, Germany).
  15. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler, J. A. C. Bland and S. N. Holmes,
    "Spin-dependent electron transport in ferromagnet/semiconductor Schottky barrier structures,"
    Materials Research Society (MRS) Spring Meeting 2000 (26/04/2000, San Francisco, CA, USA).
  16. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler, J. A. C. Bland and S. N. Holmes,
    "Spin-polarised electron transport in ferromagnet/semiconductor Schottky barrier structures,"
    Current Research in Magnetism (CRIM) 2000 (19/04/2000, Leeds, England).
  17. Spin-photonics J. A. C. Bland, A. Hirohata, Y. B. Xu, C. M. Guertler and S. N. Holmes,
    "Spin-polarized electron transport processes at ferromagnet/semiconductor interfaces (invited),"
    International Magnetics Conference (INTERMAG) 2000 (10/04/2000, Tronto, Canada).
  18. Spin-photonics J. A. C. Bland, Y. B. Xu, M. Tselepi, C. M. Guertler and A. Hirohata, "Spin-polarized electron transport in ferromagnet/semiconductor hybrid structures induced by photoexcitation (invited),"
    International Symposium on Nanoscale Magnetism and Transport (ISNMT) 2000 (10/02/2000, Sendai, Japan).
  19. Spin-photonics J. A. C. Bland, A. Hirohata, Y. B. Xu, C. M. Guertler and S. N. Holmes,
    "Spin-polarized electron transport in ferromagnet/semiconductor hybrid structures induced by photoexcitation (invited),"
    Gordon Research Conference on Magnetic Nanostructures (13/02/2000, Ventura, CA, USA).
  20. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler and J. A. C. Bland,
    "Spin dependent electron transport in the ferromagnet/semiconductor Schottky barrier structures,"
    Condensed Matter & Materials Physics Conference (CMMP) 1999 (21/12/1999, Leicester, England).
  21. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler and J. A. C. Bland,
    "Spin-dependent electron transport in NiFe/GaAs and Co/GaAs Schottky barrier structures,"
    44th Annual Conference on Magnetism and Magnetic Materials (MMM'99) (15/11/1999, San Jose, CA, USA).
  22. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler and J. A. C. Bland,
    "Spin dependent electron transport through the ferromagnet/semiconductor interface induced by photon excitation,"
    International Magnetics Conference (INTERMAG) 1999 (18/05/1999, Kyongju, Korea).
  23. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler and J. A. C. Bland,
    "Spin dependent electron transport through the ferromagnet/semiconductor interface,"
    Materials Research Society (MRS) Spring Meeting 1999 (05/04/1999, San Francisco, CA, USA).
  24. Spin-photonics A. Hirohata, Y. B. Xu, C. M. Guertler and J. A. C. Bland,
    "Spin dependent electron tunneling at the ferromagnet/semiconductor interface,"
    43rd Annual Conference on Magnetism and Magnetic Materials (MMM'98) (11/11/1998, Miami, FL, USA).

Domain Wall Resistance

  1. Magnetoresistance Y. B. Xu, A. Hirohata, S. M. Gardiner, J. Rothman, M. Kl_ui, L. Lopez-Diaz, M. Tselepi, J. A. C. Bland, Y. Chen, E. Cambril and F. Rousseaux,
    "Effects of interdot dipole coupling in mesoscopic epitaxial Fe (100) dot arrays,"
    8th Joint MMM-Intermag Conference (09/01/2001, San Antonio, TX, USA).
  2. Magnetoresistance Y. B. Xu, A. Hirohata, M. Kläui, S. M. Gardiner, L. Lopez-Diaz, M. Tselepi, J. Rothman, J. A. C. Bland, F. Rousseaux, E. Cambril and Y. Chen,
    "Micromagnetism in mesoscopic epitaxial Fe(001) dot arrays,"
    International Colloquium on Magnetic Films and Surface (ICMFS) 2000 (15/08/2000, Natal, Brazil).
  3. Magnetoresistance Y. B. Xu, A. Hirohata, C. A. F. Vaz, C. C. Yao, W. Y. Lee, H. T. Leung, J. A. C. Bland, E. Cambril, F. Rousseaux and H. Launois,
    "Domain wall trapping and magneto-transport in mesoscopic ferromagnets,"
    International Magnetics Conference (INTERMAG) 1999 (21/05/1999, Kyongju, Korea).
  4. Magnetoresistance Y. B. Xu, C. A. F. Vaz, A. Hirohata, C. C. Yao, H. T. Leung, J. A. C. Bland, E. Cambril, F. Rousseaux and H. Launois,
    "Magneto-transport in submicron ferromagnetic wire structures with domain with a domain wall trapping junction,"
    Materials Research Society (MRS) Spring Meeting 1999 (06/04/1999, San Francisco, CA, USA).
  5. Magnetoresistance Y. B. Xu, C. C. Yao, A. Hirohata, C. A. F. Vaz, W. Y. Lee, J. A. C. Bland, F. Rousseaux, E. Cambril and H. Launois,
    "Observation of domain wall magneto-resistance in ferromagnetic wires with a submicron magnetic trap,"
    43rd Annual Conference on Magnetism and Magnetic Materials (MMM'98) (09/11/1998, Miami, FL, USA).

Magnetic Domains in Ferromagnetic Mesoscopic Structures

  1. Domain structures A. Hirohata, Y. B. Xu, J. A. C. Bland, S. N. Holmes, E. Cambril, Y. Chen and F. Rousseaux,
    "Influence of crystalline structure on micromagnetic domain formation,"
    International Magnetics Conference (INTERMAG) 2002 (28/04/2002, Amsterdam, The Netherlands).
  2. Domain structures A. Hirohata, Y. B. Xu, J. A. C. Bland, S. N. Holmes, E. Cambril, Y. Chen and F. Rousseaux,
    "Influence of crystalline structures on the domain configurations in controlled mesoscopic ferromagnetic wire junctions,"
    46th Annual Conference on Magnetism and Magnetic Materials (MMM'01) (14/11/2001, Seatle, WA, USA).
  3. Domain structures Y. B. Xu, M. Tselepi, A. Hirohata, C. M. Guertler, C. A. F. Vaz and J. A. C. Bland,
    "Spin-engineering in magnetic nanostructures: 2D films, 1D wires, and 0D dots (invited),"
    8th Annual International Conference on Composites Engineering (ICCE/8) (08/08/2001, Tenerife, Canary Islands, Spain).
  4. Domain structures A. Hirohata, Y. B. Xu, C. C. Yao, H. T. Leung, W. Y. Lee, S. M. Gardiner, D. G. Hasko and J. A. C. Bland,
    "Domain wall trapping in controlled mesoscopic ferromagnetic wire junctions,"
    International Conference on Magnetism (ICM) 2000 (08/08/2000, Recife, Brazil).
  5. Domain structures Y. B. Xu, C. A. F. Vaz, A. Hirohata, H. T. Leung, J. A. C. Bland, E. Cambril and F. Rousseaux,
    "Coherent spin block and magneto-resistance in submicron magnetic wire junction,"
    Symposium on Spin-Electronics (SSE) 2000 (04/07/2000, Halle, Germany).
  6. Domain structures W. Y. Lee, A. Hirohata, H. T. Leung, Y. B. Xu, S. M. Gardiner, C. C. Yao and J. A. C. Bland,
    "A novel shape effect on magnetisation reversal in mesoscopic Ni80Fe20 wires,"
    International Magnetics Conference (INTERMAG) 2000 (11/04/2000, Tronto, Canada).
  7. Domain structures A. Hirohata, C. C. Yao, H. T. Leung, Y. B. Xu, C. M. Guertler and J. A. C. Bland,
    "Magnetic domain studies on permalloy wire-based structures with junctions,"
    International Magnetics Conference (INTERMAG) 2000 (10/04/2000, Tronto, Canada).
  8. Domain structures Y. B. Xu, A. Hirohata, L. Lopez-Diaz, M. Tselepi, J. A. C. Bland, E. Cambril and F. Rousseaux,
    "Micromagnetism in mesoscopic epitaxial Fe dots,"
    Condensed Matter & Materials Physics Conference (CMMP) 1999 (21/12/1999, Leicester, England).
  9. Domain structures A. Hirohata, Y. B. Xu, C. C. Yao, H. T. Leung, W. Y. Lee, S. M. Gardiner, D. G. Hasko, J. A. C. Bland and S. N. Holmes,
    "Domain wall trapping in permalloy wire junctions,"
    Condensed Matter & Materials Physics Conference (CMMP) 1999 (21/12/1999, Leicester, England).
  10. Domain structures Y. B. Xu, A. Hirohata, H. T. Leung, S. M. Gardiner, W. Y. Lee, M. Tselepi, J. A. C. Bland and F. Rousseaux, E. Cambril and H. Launois,
    "Micromagnetism in mesoscopic epitaxial Fe dots,"
    44th Annual Conference on Magnetism and Magnetic Materials (MMM'99) (18/11/1999, San Jose, CA, USA).
  11. Domain structures H. T. Leung, A. Hirohata, W. Y. Lee and J. A. C. Bland,
    "Effect of an abrupt change in the lateral dimension of Ni80Fe20 permalloy thin film bars,"
    44th Annual Conference on Magnetism and Magnetic Materials (MMM'99) (16/11/1999, San Jose, CA, USA).
  12. Domain structures A. Hirohata, Y. B. Xu, C. C. Yao, H. T. Leung, W. Y. Lee, S. M. Gardiner, D. G. Hasko, J. A. C. Bland and S. N. Holmes,
    "Domain wall trapping in controlled submicron ferromagnetic elements,"
    44th Annual Conference on Magnetism and Magnetic Materials (MMM'99) (15/11/1999, San Jose, CA, USA).
  13. Domain structures W. Y. Lee, H. T. Leung, W. Zhang, Y. B. Xu, A. Hirohata, B.-Ch. Choi, D. G. Hasko and J. A. C. Bland,
    "Magnetisation reversal and magnetic anisotropy in Co network nanostructures,"
    International Magnetics Conference (INTERMAG) 1999 (20/05/1999, Kyongju, Korea).
  14. Domain structures A. Hirohata "Magnetic domain evolution in permalloy mesoscopic dots,"
    International Magnetics Conference (INTERMAG) 1999 (20/05/1999, Kyongju, Korea).
  15. Domain structures C. C. Yao, D. G. Hasko, W. Y. Lee, A. Hirohata, Y. B. Xu and J. A. C. Bland,
    "Influence of lateral geometry on magnetoresistance and magnetisation reversal in Ni80Fe20 wires,"
    International Magnetics Conference (INTERMAG) 1999 (18/05/1999, Kyongju, Korea).
  16. Domain structures C. C. Yao, D. G. Hasko, A. Hirohata, W. Y. Lee, Y. B. Xu and J. A. C. Bland,
    "Pseudo-Hall effect and anisotropic magnetoresistance in a mesoscopic Ni80Fe20 device,"
    International Magnetics Conference (INTERMAG) 1999 (18/05/1999, Kyongju, Korea).

Magnetic Domains in Ferromagnetic Films

  1. Domain structures W. Zhang, C. A. F. Vaz, A. Hirohata and J. A. C. Bland,
    "Easy axis transition in epitaxial fcc NiFe/Ni/Cu(100),"
    43rd Annual Conference on Magnetism and Magnetic Materials (MMM'98) (10/11/1998, Miami, FL, USA).
  2. Domain structures A. Hirohata and H. Miyajima,
    "Magnetic properties of a martensite in Fe-Ni alloy measured by means of scanning probe microscopy,"
    International Conference on Magnetics (ICM) 1997 (28/07/1997, Cairns, Australia).
  3. Domain structures A. Hirohata, H. Miyajima, H. Yuasa and Y. Nozaki,
    "Magnetic domain structures of ferromagnetic crystals observed by means of MFM,"
    52nd Annual Conference of the Physical Society of Japan (28/03/1997, Nagoya, Japan).
  4. Domain structures A. Hirohata and H. Miyajima,
    "Micromagnetic configurations of martensite in Fe-Ni alloys,"
    41st Annual Conference on Magnetism and Magnetic Materials (MMM'96) (15/11/1996, Atlanta, GA, USA).
  5. Domain structures A. Hirohata and H. Miyajima,
    "Surface magnetic structure of Fe-Ni martensites observed by means of MFM,"
    Autumn Conference of the Physical Society of Japan (02/10/1996, Yamaguchi, Japan).
  6. Domain structures A. Hirohata and H. Miyajima,
    "Observation of magnetic domain structure in martensites by means of MFM and AFM,"
    20th Annual Conference of the Magnetic Society of Japan (22/09/1996, Narashino, Japan).
  7. Domain structures A. Hirohata, Y. Otani and H. Miyajima,
    "Surface observation of magnetic structure in FeNi martensites by means of MFM,"
    51st Annual Conference of the Physical Society of Japan (01/04/1996, Kanazawa, Japan).
  8. Domain structures A. Hirohata, S. Yuasa, Y. Otani and H. Miyajima,
    "Observation of magnetic domain structure in martensites by means of MFM,"
    19th Annual Conference of the Magnetic Society of Japan (23/09/1995, Tokyo, Japan).
  9. Domain structures H. Yokoyama, A. Hirohata, Y. Otani and H. Miyajima,
    "Study on the magnetic domain structures and the magnetization process in YIG films by means of MFM,"
    50th Annual Conference of the Physical Society of Japan (31/03/1995, Yokohama, Japan).

Phase-Change Semiconductor Diodes

  1. Miscellaneous A. Hirohata, J. S. Moodera and G. Berera,
    "Structural and electrical properties of InSe polycrystalline films and diode fabrication,"
    American Physical Society (APS) March Meeting 2003 (05/03/2003, Austin, TX, USA).
 

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