X-ray diffraction study of intermetallic clathrates compounds

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

Abstract

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.

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.