Pressure effects on crystal structures and magnetic properties of RCo{sub 5} (R = Y or Gd) compounds

Journal Article · Wed Nov 13 00:00:00 EST 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4832803· OSTI ID:22280635

Burzo, E. ^[1]; Vlaic, P. ^[2]

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1. Faculty of Physics, Babes-Bolyai University Cluj-Napoca 400084 (Romania)
2. Faculty of Physics, Babes-Bolyai University Cluj-Napoca 400084 Romania and University of Medicine and Pharmacy Iuliu Hatieganu, Physics and Biophysics Department Cluj-Napoca (Romania)

The pressure dependences of crystal structures and magnetic properties of YCo{sub 5} and GdCo{sub 5} compounds are analysed based on band structure calculations. Isomorphic transitions were evidenced for relative volumes v/v{sub 0} = 0.91 and 0.86, for YCo{sub 5} and GdCo{sub 5}, respectively. At the transition, there is a higher decrease of cobalt moments at 3g sites as compared to those located in 2c ones. The induced polarizations on Y4d and Gd5d bands, by short range interactions, are linearly dependent on the magnetizations of cobalt atoms situated in their neighborhood. The isomorphic transitions are analysed in correlations with band structures.

• OSTI ID: 22280635
• Journal Information: AIP Conference Proceedings, Vol. 1564, Issue 1; Conference: TIM 2012 physics conference, Timisoara (Romania), 27-30 Nov 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMS
COBALT
COMPARATIVE EVALUATIONS
CORRELATIONS
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
GADOLINIUM COMPOUNDS
INTERACTION RANGE
INTERMETALLIC COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIZATION
POLARIZATION
PRESSURE DEPENDENCE
YTTRIUM COMPOUNDS