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Author Reddy, P. V. Sreenivasa ♦ Kanchana, V. ♦ Vaitheeswaran, G.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ALUMINIUM ♦ COMPRESSION ♦ DENSITY OF STATES ♦ ELECTRONIC STRUCTURE ♦ FERMI LEVEL ♦ G STATES ♦ GOLD ♦ HEUSLER ALLOYS ♦ INDIUM ♦ INTERMETALLIC COMPOUNDS ♦ LEAD ♦ LEAD COMPOUNDS ♦ L-S COUPLING ♦ PALLADIUM ♦ PRESSURE RANGE GIGA PA ♦ SCANDIUM ♦ SUPERCONDUCTORS ♦ TIN ♦ TOPOLOGY
Abstract A detailed study on the electronic structure and Fermi surface (FS) of superconducting Heusler compounds ScAu{sub 2}(Al, In) and ScPd{sub 2}(Sn, Pb) has been carried out using first principles electronic structure calculations. The spin orbit coupling is found to play a major role in understanding the band structure and FS. Analysis of the data shows the importance of spin orbit coupling effect in the above compounds. The bands which cross Fermi level (EF) are found to be dominated by the Sc d{sub t2g}-states. The calculated total density of states are in good agreement with the experimentally reported value for ScPd{sub 2}Sn. Under compression we find a change in the Fermi surface topology of ScPd{sub 2}Sn at V/V{sub 0} = 0.95 (pressure of≈15 GPa), which is explained using the band structure calculations.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-24
Publisher Place United States
Volume Number 1665
Issue Number 1


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