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Title: Effects of Cr doping on the magnetic properties of multiferroic YMnO{sub 3}

We have synthesized a series of YMn{sub 1−x}Cr{sub x}O{sub 3} (0 ≤ x ≤ 0.1) samples and study the effect of Cr-doping on their magnetic properties. The magnetic characterization indicates that with increasing Cr-content up to 0.1, the antiferromagnetic (AFM) transition temperature increases from 73 to 89 K. Our experiment results also indicate that the Cr-doped samples exhibit the characteristics of spin-glass state at low temperature. Moreover, the magnetic hysteresis curves of the doped samples show a weak ferromagnetic (FM) behavior. It is found that the spin-glass state of the Cr-doped samples is due to the competition between AFM superexchange and FM double-exchange interaction, induced by the Cr doping.
Authors:
; ;  [1]
  1. Department of Applied Physics, National University of Kaohsiung, Kaohsiung 811, Taiwan (China)
Publication Date:
OSTI Identifier:
22273834
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 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; ANTIFERROMAGNETIC MATERIALS; ANTIFERROMAGNETISM; CHROMIUM COMPOUNDS; CONCENTRATION RATIO; DOPED MATERIALS; EXCHANGE INTERACTIONS; HYSTERESIS; MAGNETIC PROPERTIES; MANGANATES; SPIN GLASS STATE; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS