Thu 14 December, 2017

Surface Physics Group News

Welcome to the Surface Physics Group news page. Here the latest news from and about our group can be found, including important scientific discoveries, group presentations and member achievements.
Hydrogenation paper published

March 2010

A collaboration within the group has just been published in Surface Science. The work uses the extreme surface sensitivity of MDS spectra in tandem with state of the art density functional theory calculations to determine where hydrogen is located when it adsorbs and absorbs into the 2D silcides. Such a two pronged approach could prove useful to look at other candidate materials for hydrogen storage.
CE
Visit to NIMS

26th November 2009

Steve Tear and Chris Eames visited the Japanese National Institute for Materials Science (NIMS) in Tsukuba at the invitation of Prof. Yamauchi. Steve gave a talk about our structural studies with MEIS and MDS. Dr. Andy Pratt from our group is a JSPS visiting researcher at NIMS and he was able to show us around the wonderful facilities that he has available.
Chris, Andy and Steve outside NIMS Chris, Andy and Steve at NIMS
MDS at NIMS The MDS instrument being used by Andy Pratt at NIMS
CE
3 weeks of 3D-MEIS in Tokyo

November 2009

Kobayashi-san discusses the experiment with Steve and Dr. Roch Andrzejewski Dr. Kobayashi discusses the experiment with Steve and Dr. Roch Andrzejewski
Steve Tear and Chris Eames have returned to RIKEN to use the new 3D-MEIS system. The samples to be scanned are iron clusters that were grown on silicon using a cluster source that was involved in a recent collaborative project with the University of Leicester. Follow our progress on twitter here and here.
CE
HRDP-5 in Kyoto

15-19 November 2009

Steve presents his talk at HRDP-5 Steve presents his talk at HRDP-5
Chris discusses one of the posters with Dr. Paul Bailey Chris discusses one of the posters with Dr. Paul Bailey
Steve Tear and Chris Eames attended the 5th Conference on High Resolution Depth Profiling in Kyoto. A talk and two posters were presented. Many fruitful discussions were made with other researchers in the field.
CE
2D Ho Silicide MDS/DFT Paper Published

June 2009

The silicon bilayer that terminates the surface of 2D Ho silicide has been studied with Metastable De-excitation Spectroscopy and with DFT. The theory/experiment comparison was able to highlight the depth from which certain features in the MDS spectrum originate and the sensitivity of the peak from the top silicon bilayer to its rumpling amplitude. The paper demonstrates the power of these joint techniques in examining subtle near surface features.
CE
Manganese growth paper published

May 2009

A Scanning Tunneling Microscopy study performed by Chris and Mike to aid growth techniques used at Daresbury has just been published in J. Phys. Cond. Matt. The paper details the growth of Manganese on the Si(111) surface. Two tricks were used to prevent Mn mixing with the silicon; a buffer layer of holmium and cooling the substrate with liquid nitrogen prior to Mn deposition. These improved growth methods allow ordered Mn layers to be grown which can then be structurally analysed using MEIS.
CE
MEIS experiments at Daresbury and a visit to ISSC-17

March/April 2009

Chris Eames and Mike Reakes have spent a month at the Daresbury UK MEIS facility using ion scattering to look at the surface crystal structure of rare earth islands on Si(100) and the effect of the substrate temperature, the growth of silicon layers on cooled Rare Earth silicide substrates and nanowire growth on vicinal Si(100).

Chris and Mike also attended the 17th International Conference on Surface Science (ISSC-17) in Reading where they presented three talks and three posters. See the Conferences and Presentations page for downloads.

To round off a busy month Chris, Mike and Steve Tear attended the MEIS users meeting on 30 April where the UK MEIS community showcased all of the work done at Daresbury during the past year. There was also a group discussion about the future needs for the community at the facility.
CE
A month of MEIS experiments at Daresbury

Nov/Dec 2008

Chris Eames and Mike Reakes have spent a month at the Daresbury UK MEIS facility using ion scattering to look at the surface crystal structure of rare earth islands on Si(100) and the effect of the substrate temperature, the growth of silicon layers on cooled Rare Earth silicide substrates and nanowire growth on vicinal Si(100).
CE
New PhD Student; Jeremy Mitchell

October 2008

"I will be working on determining the structure, defect structure of rare earth silicides and the nature of the interface between the silicide and the silicon substrate using High Resolution TEM. Working with Jun Yuan and Steve Tear, to combine the surface science and TEM experience."
CE
Steve Tear attends two conferences

July/August 2008

Steve Tear has presented MEIS and LEED I-V results at ICN+T in Colorado and ICSOS-9 in Salvador, Brazil. See the conferences and presentations section for a download of the talks/posters
CE
Visit of T. Kobayashi from Tokyo

June 2008

Takane Kobayashi from the RIKEN institute in Tokyo has visited us this month. Dr Kobayashi has research interests in structural surface science and has a novel 3D-MEIS instrument in Tokyo. His work at York involved the use of Scanning Tunneling Microscopy to study rare earth silicide nanowire growth on vicinal Si(100).
CE
A month of MEIS experiments at Daresbury

April/May 2008

Chris Eames and Mike Reakes have spent a month at the Daresbury UK MEIS facility using ion scattering to look at the surface crystal structure of rare earth islands on Si(100) and the growth of magnetic layers on cooled Rare Earth silicide substrates.
CE
MEIS paper published

April 2008

MEIS paper published in Phys. Rev. B., 'Medium-energy ion-scattering study of strained holmium silicide nanoislands grown on silicon (100)'. This work represents a few years of experimental work and data reduction and analysis by several members of our group.
CE
Chris Eames visits Tokyo

January 2008

Chris Eames has spent a month in Tokyo (Steve Tear was also present for the first week) at the RIKEN institute working with Takane Kobayashi on 3D-MEIS. The work looked at Rare Earth Germanide islands on Si(100).
CE
Visit of T. Kobayashi from Tokyo

December 2007

Takane Kobayashi from the RIKEN institute in Tokyo has visited us this month. Dr Kobayashi has research interests in structural surface science and has a novel 3D-MEIS instrument in Tokyo. His work at York involved the use of Atomic Force Microscopy to study metal growth on the insulating material fluorite (Calcium Fluoride).
CE
Physics Graduation 2007 Photographs

16th July 2007

The photographs below were taken by AP at the Physics Department reception following the Summer 2007 graduation ceremony.
Stott prize Tim Wood receives prize from Prof. Brian Fulton (see article below)
Chris Eames Chris Eames after receiving Ph.D. at graduation ceremony
CB
Tim Wood receives prize for Ph.D. thesis

13th July 2007

Following the University degree ceremony today, Tim Wood, a former member of the Surface Physics Group at York, was formally awarded a prize for his Ph.D. thesis entitled "Structural studies of rare earth silicides on silicon by medium-energy ion scattering". The award of the prize, for achieving second place in the competition for the 2006 Stott prize for best Ph.D. thesis in Physics, was announced by head of department Prof. Brian Fulton. Tim originally joined the Group as a graduate student during which time he conducted his research involving the use of medium-energy ion scattering (MEIS) for surface structure determination. Following completion of his thesis, he was subsequently appointed as a postdoctoral research assistant in the Group and he initially continued his work on MEIS before going on to work on a project involving the use of focused ion beam techniques for nanofabrication. Congratulations Tim!
CB
International Workshop on High-Resolution Depth Profiling 2007

22nd June 2007

Steve Tear, Chris Eames and Mike Reakes all attended the 4th International Workshop on High-Resolution Depth Profiling held in Radebeul (Dresden, Germany) which took place from 17 until 21 June 2007. This, the fourth in a series of successful specialised meetings focusing on the analytical applications of low- and medium energy ion beams, was particularly relevant to the surface-structure determination work using medium-energy ion scattering (MEIS) which the York group carries out. Two posters were presented by the York group and an invited oral presentation was given by Steve Tear. (See Conferences and Presentations for further details.)
CB
New postdoc on MEIS project

19th February 2007

Chris Eames has begun work on the medium-energy ion scattering (MEIS) project following his recent appointment as a postdoctoral research assistant within the Surface Physics Group.
CB
MRS Fall Meeting 2006

30th November 2006

Steve Tear travelled to the Fall Meeting 2006 of the Materials Research Society (MRS) which took place in Boston, MA from 28 November until 1 December. A poster entitled "Scanning tunneling microscopy study of nanorods formed by Ho deposition on the Ge(111) surface" was presented. (See Conferences and Presentations for further details.)
CB
ICN+T 2006

7th August 2006

Chris Bonet attended the International Conference on Nanoscience and Technology 2006 which took place in Basel, Switzerland from 30 July until 4 August at which posters entitled "Nanostructures formed by Ho deposition on the Ge(001) surface studied by scanning tunneling microscopy" and "Scanning tunneling microscopy study of nanorods formed by Ho deposition on the Ge(111) surface" were presented. (See Conferences and Presentations for further details.)
CB
Microscience 2006

29th June 2006

Chris Bonet and Karen Tiede attended the Microscicence 2006 meeting (organised by the UK RMS) at the ExCeL exhibition centre close by the Royal Victoria Docks in London. Karen presented a poster "Imaging of Engineered Nanoparticles in Water by WetSEM™/EDS." The Microscience conference incorporated this year's UK SPM meeting, at which CB presented a talk, "STM study of nanorods formed by Ho deposition on the Ge(111) surface" and a poster "STM studies of silicon growth on rare earth silicide surfaces." (See Conferences and Presentations for further details.)
CB
EMAS Workshop 2006

20th May 2006

Steve Tear and Steve Martin attended the 7th EMAS Regional Workshop on Electron Probe Microanalysis in Karlsruhe, Germany from 13th-16th May. Two posters were presented: "Layer Structure Determination Using Fractional Change in k-ratios" and "A Low-Loss Electron Detector for Nanometric Quantitative Surface Analysis in an SEM".
AP
APS March Meeting 2006

9 March 2006

Work which has arisen as a result of a collaboration between the Surface Physics group and the Condensed Matter Dynamics group at the American Physical Society (APS) March Meeting 2006 which is being held in Baltimore, MD from 13 March until 17 March 2006. Chris Eames will be presenting two talks at this meeting: "LEED and Ab-initio Study of the SmSi(111)3x2 Reconstruction" in session N12 starting 10:36 on the 15th (session commences 08:00), and "Ab-initio Studies of Properties of 2D Rare-Earth Silicide Surfaces" in session P12 starting 14:03 on the 15th (session commences 11:15).
CB
MRS Fall Meeting 2005

25 November 2005

Work of the Surface Physics group will be presented at the Materials Research Society (MRS) Fall Meeting 2005 which is being held in Boston, MA from 28 November until 2 December. Steve Tear will be presenting "Holmium silicide on Si(100): a detailed study of the c(2×2) structure by medium-energy ion scattering and scanning tunnelling microscopy", "Holmium growth on SiC-6H(0001) studied by scanning tunnelling microscopy" and "Structural trends in the 2D rare earth silicides on Si(111) investigated using medium-energy ion scattering" during the meeting.
CB
ICSOS 8

25 July 2005

Steve Tear and myself have just returned from attending ICSOS 8 in Munich, Germany. This proved to be a particularly enjoyable and beneficial conference because the focus of the meeting on the Structure of Surfaces was so closely related to our research interests at York. During the meeting two posters and one oral presentation were contributed by the York group.
CB
International Workshop on High-Resolution Depth Profiling 2005

28 May 2005

Steve Tear, Tim Wood and myself have returned from about a week in the US during which time we attended the International Workshop on High-Resolution Depth Profiling held in Bar Harbor, Maine. This specialised meeting was particularly relevant to the medium-energy ion scattering (MEIS) work that the group carries out. Three posters were presented by the York group and an oral presentation was given by Tim Wood.
CB
UKSPM 2005

23 March 2005

Debra Schofield and myself have just returned from two days at UKSPM 2005. Debra presented a talk, and I presented two posters, all of which can be found in the Conferences section for download. The general standard of presentation at the conference was very high, and provided substantial food for thought.
EWP
New Publication

16 March 2005

The surface physics group has published its latest paper, entitled "Growth and Electronic Structure of Holmium Silicides by STM and STS". E.W. Perkins, I.M. Scott, S.P. Tear, Surface Science, 578, 1-3, p80-87. Available now through your library, and ScienceDirect.
EWP
Viva Success

15 February 2005

Ian Scott's viva examination proceeded as planned on Friday. His external was Prof. Chris McConville, and his internal was Dr. Sarah Thompson. The surface physics group would like to wish Ian every success in his future endeavours.
EWP
Forthcoming Viva

7 Feb 2005

Ian Scott's viva has been scheduled for this Friday. Ian will be defending his thesis "Studies of Thin Metal Silicides on Silicon(111)". The surface physics group wish Ian the best of luck!
EWP
CMMP 04 Conference Attendence

8 Apr 2004

Poster Win Andy and Alex receive the award for their poster
Most of the surface physics group joined a large physics contingent at the Condensed Matter and Materials Physics Conference at the University of Warwick. As well as taking the opportunity to discuss ideas with the wider community and attend a number of interesting talks, the group presented several posters. The efforts of Andrew Pratt and Alex Roskoss were rewarded with a joint runner up prize for best student poster.
IMS
UKSPM 04 Presentations

1 Apr 2004

A contingent from the group attended the UKSPM conference in Nottingham. A number of posters were presented detailing the some of the SPG's latest work, including rare earth silicon interactions and spin polarized STM. Some of these posters are available online in the Conferences and Presentations section.
IMS
Surface Science Seminar

22 Mar 2004

The two Chris's spoke at a small surface science seminar in the department. Chris Eames told us about the theory work he does, whilst Chris Bonet rehearsed a fifteen minute talk he is soon to give. Chris Eames's talk is now available online, see the Conferences and Presentations section.
IMS
Successful Trip

22 Mar 2004

MEIS Data Aquired
Tim Wood and Chris Bonet have just returned from a two week run at the MEIS faciility at Daresbury. Despite numerous equipment troubles they did manage to take some valuable data on dysprosium silicide. Tim will now spend the next few weeks analysing the data!
IMS
Website goes live

20 Mar 2004

Website Screenshot The finished SPG website
The new site finally takes over!
The new Surface Physics Group website was online several months ago but wasn't ready to replace the old pages as the site visitors would see. After much testing and content development, the new site has finally taken its rightful place on the internet. The site was originally conceived by Dr Andy Kale (now at the University of Alberta, Edmonton, Canada). The underlying code has been tweaked into shape by Ian Scott, Andy has continued to supply some art work, whilst the entire group have been responsable for testing and providing the all important content.
IMS
Theory Talk

9 Mar 2004

Chris Eames-The Experimental Theorist
Christopher Eames recently gave a talk to the department's condensed matter theory group describing his theoretical simulations of some of the structures studied by the surface physics group. Chris shares his PhD time between the experimental SPG and the theorists working both on quantitative LEED and CASTEP simulations!
IMS
New, improved Surface Physics Group website online

18 Nov 2003

Screenshot
The new SPG website
The new look Surface Physics Group website is now online!
This site aims to provide an insight into the research conducted by the group, together with descriptions of the techniques developed and used. Hopefully this website will provide a valuable resource for members of the group and the wider surface physics community.
AK
Viva success

13 Oct 2003

Herve Menard passed his viva-voce examination on his thesis, entitled 'The adsorption of methylsilane on Cu(111)'. Well done Herve!
Herve Menard works as a post-doctoral research assistant in the group.
AK
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