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X-ray diffraction study of intermetallic clathrates compounds

Grant number: 08/08900-2
Support type:Scholarships in Brazil - Master
Effective date (Start): March 01, 2009
Effective date (End): February 28, 2011
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal researcher:Carlos Manuel Giles Antunez de Mayolo
Grantee:Larissa Sayuri Ishibe Veiga
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


This research Project aims to intoduce the student Larissa Veiga to advanced experimental techniques using x-ray diffraction with synchrotron radiation. The object of study will be new intermetallic clathrates compounds which have a potential application in the field of thermoelectric materials. The samples to be studied will be the intermetallic compounds Ba8Ga16Sn30 and Eu8Ga16Ge30 in the beta phase available through a collaboration with researches from the Optical and Magnetic Properties of Solids Group from the IFGW. The project concerns crystallographic measurements at low temperatures (below 10 K) as well as magnetic x-ray scattering at the LNLS in the magnetic compounds containing Eu. A feasibility study of performing time resolved x-ray diffraction on these compounds will also be performed to obtain dynamical informations on the rattling of the Ba and Eu atoms in the beta phase of these compounds.

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
VEIGA, Larissa Sayuri Ishibe. X-rays magnetic diffraction study of Eu8Ga16Ge30 intermetallic clathrate compound. 2011. Master's Dissertation - Universidade Estadual de Campinas (UNICAMP). Instituto de Física Gleb Wataghin Campinas, SP.

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