SIGs
Role and constitution of a SIG
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Report 2006-2007
Reported Period: 2006-2007
Report Date: 12/07/2007
Reported by: A. Polian
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1. Introduction.
SIG 11 – Crystallography at Extreme Conditions aim is to gather scientists studying the structural properties of matter submitted to extreme conditions, i.e. high pressure, high temperature, high magnetic fields, ... separately or together. The foundation of the SIG has been proposed at the ECM 19, in Nancy, and decided at ECM 20 in Krakow. Since ECM 19 included, one or two microsymposia are organized at each meeting.
2. Past Activities.
Title: Crystallography at extreme conditions: state of the art
Number of Participants: ~ 50
Sponsors/Organizers: Alain Polian and Leonid Dubrovinsky
Short Description: Microsymposium at ECM 23 in Leuven.
Title: Incommensurate high pressure and high temperature group VI elements, by C. Hejny
Short Description: Plenary lecture at ECM 23 in Leuven.
3. Future/Programmed Activities.
Title: Crystallography at extreme conditions: state of the art
Sponsors/Organizers: Alain Polian and KarlSyassen
Short Description: Microsymposium at ECM 24 in Marrakech
High pressure phase transitions: a local point of view
Jean Paul Itié
Plenary lecture at ECM 24 in Marrakech
4. Other matters.
Report 2005-2006
The main activity in 2005 was naturally devoted to our participation in the XX. IUCr congress at Florence. Although having no official role in the IUCr, members of our SIG took part in the organization of microsymposia, in collaboration with the High Pressure commission of the IUCr.
Malcolm McMahon presented a keynote lecture on the structural properties of "simple" metals under high pressure, in which contrary to the standard expectations, high pressure induces complexity.
Our community participated strongly in five microsymposia: MS 40: "Computational Crystallography Applied to Extreme Conditions"; MS 47 "Novel Materials under High Pressure"; MS 54 "Crystallography at Conditions of Earth and Planetary Interiors", MS 61 "Structures, Phase Transitions and Properties at High Pressure; and MS 68 " Liquids and Amorphous Systems at High Pressure".
ECM 23
Our SIG was also involved in the organisation of the ECM23 conference in Leuven (Belgium). A plenary lecture will be given by C. Hejny on incommensurate high pressure and high temperature group VI elements and a microsymposium will be dedicated to the structure determination of modulated and aperiodic crystals. A microsymposium on 3eCrystallography under extreme Conditions: State of the Art" is organized.
Report 2003-2004
SIG #11: Crystallography at Extreme Conditions
The main activity of SIG 11 was devoted to the organisation of micro symposia during the ECM meetings.
In 2004 SIG #11 was involved in the ECM-22 meeting, Budapest, August 26-31. One micro-symposium is organised on gCrystallography at Extreme Conditions: state of the Arth chaired by A. Polian and M.I. McMahon. Moreover, one common session is organised in common with SIG #5 "Crystallography of planetary interiors" chaired by A.R. Oganov and L. Dubrovinsky. Two plenary lectures will be given, by M.I. McMahon gNovel structures in "simple" metalsh, and by S. Klotz gNeutron scattering at high pressureh.
Several members of the SIG had a strong participation to the XLII European High Pressure Research Group Meeting, Lausanne, September 2004, and to the 20th AIRAPT - XLIII EHPRG meeting on Science and Technology of High Pressure, held in Karlsruhe, June 26 - July 1rst, 2005.
A microsymposium will be organized at the next ECA meeting in Leuven, and a plenary session given.
Report 2003-2004Since its approval, the main activity of SIG 11 was devoted to the organisation of micro symposia during the ECM meetings, with the exception of the ECM-21 Durban, 25-28 August 2003. Nevertheless, in 2003, many members of the SIG did participate to the XIX AIRAPT - XLI EHPRG meeting, Bordeaux, July 2003.
In 2004 SIG #11 is involved in the ECM-22 meeting, Budapest, August 26-31. One micro-symposium is organised on "Crystallography at Extreme Conditions: state of the Art" chaired by A. Polian and M.I. McMahon. Moreover, one common session is organised in common with SIG #5 "Crystallography of planetary interiors" chaired by A.R. Organov and L. Dubrovinsky. Two plenary lectures will be given, by M.I. McMahon "Novel structures in 'simple' metals", and by S. Klotz "Neutron scattering at high pressure".
Moreover, several members of the SIG will participate to the XLII European High Pressure Research Group Meeting, Lausanne, September 2004.
