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Magnetic structures of RNiSb2(R = Pr, Nd and Tb) compounds

Authors
Journal
Physica B Condensed Matter
0921-4526
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/s0921-4526(96)01073-3
Keywords
  • Chapter 7. Magnetism
Disciplines
  • Physics

Abstract

Abstract RNiSb 2 (R = Pr, Nd and Tb) compounds crystallize in the tetragonal CaBe 2Ge 2 type crystal structure and are antiferromagnets with the Néel temperature 6.3 K for R = Pr, 2.3 K for R = Nd and 12 K for R = Tb. Below T N a collinear antiferromagnetic structure of the AFI type is observed for R = Nd, a square modulated structure with the wavevector k = (0, 0, 0.25) for R = Pr and a square and a sine modulated with the wavevector k = (k x,k y,0) for R = Tb . For all compounds the magnetic moments of the rare earth atoms are parallel to c-axis.

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