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Title: Antiferromagnetic ordering in spin-chain multiferroic Gd{sub 2}BaNiO{sub 5} studied by electronic spin resonance

High-field electron spin resonance (ESR) has been employed to study the antiferromagnetic (AFM) ordering state (T < T{sub N} = 55 K) of spin-chain multiferroic Gd{sub 2}BaNiO{sub 5}. The spin reorientation at T{sub SR} = 24 K is well characterized by the temperature-dependent ESR spectra. The magnetization data evidence a field-induced spin-flop transition at 2 K. The frequency-field relationship of the ESR data can be explained by conventional AFM resonance theory with uniaxial anisotropy, in good agreement with magnetization data. Related discussion on zero-field spin gap is presented.
Authors:
; ; ;  [1] ;  [2] ; ;  [1] ;  [3]
  1. Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074 (China)
  2. (China)
  3. School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004 (China)
Publication Date:
OSTI Identifier:
22412911
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 22; Other Information: (c) 2015 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; ABSORPTION SPECTRA; ANISOTROPY; ANTIFERROMAGNETIC MATERIALS; ANTIFERROMAGNETISM; ATOMIC FORCE MICROSCOPY; BARIUM COMPOUNDS; ELECTRON SPIN RESONANCE; GADOLINIUM COMPOUNDS; MAGNETIZATION; NICKELATES; SPIN; TEMPERATURE DEPENDENCE