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

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.
Authors:
 [1] ;  [2]
  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)
Publication Date:
OSTI Identifier:
22280635
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1564; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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