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Title: Phase evolution and magnetic properties of HoIn{sub 3−x}Co{sub x}

Abstract

The phase evolution of HoIn{sub 3−x}Co{sub x} exhibits the phase transformations from the original HoIn{sub 3} with cubic structure to the intermediated HoCo{sub 2}In with orthorhombic structure and to the final HoCo{sub 3} with rhombohedral structure. The corresponding magnetic states are found to closely associate with the structural phase transformation of HoIn{sub 3−x}Co{sub x}.With increasing Co contents, HoIn{sub 3−x}Co{sub x} are paramagnetic in region of x < 0.6, mixture of paramagnetic and ferromagnetic in range of 0.6 < x < 1.8, and ferromagnetic in range of 3 > x > 2.4 at room temperature, respectively. The field dependence of magnetization curves follows an equation of M=M{sub s}(1−a/H )+χH, where M{sub s} and χ are corresponding to the saturation moment and susceptibility; a is a parameter related to the external field. The fitting results show that the susceptibility increases with increasing Co contents and M{sub s} depends upon the Co content as well. It implies that the evolution of magnetic phases in HoIn{sub 3−x}Co{sub x} might originate from the change of exchange interaction from the one between the isolated Co spins and the surrounding conduction electrons in Co-poor regime to the one between Co-Co pairs mediated by the conduction electrons in Co-rich regime.

Authors:
; ;  [1]
  1. North China Electric Power University, School of Energy Power and Mechanical Engineering, Beijing 102206 (China)
Publication Date:
OSTI Identifier:
22399338
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COBALT; CONCENTRATION RATIO; ELECTRONS; EQUATIONS OF STATE; EVOLUTION; EXCHANGE INTERACTIONS; FERROMAGNETISM; HOLMIUM; INDIUM; INTERMETALLIC COMPOUNDS; MAGNETIC PROPERTIES; MAGNETIZATION; ORTHORHOMBIC LATTICES; PARAMAGNETISM; PHASE TRANSFORMATIONS; SPIN; TEMPERATURE RANGE 0273-0400 K; TRIGONAL LATTICES

Citation Formats

Chen, Songlin, Guo, Yongquan, E-mail: yqguo@ncepu.edu.cn, and He, Qiang. Phase evolution and magnetic properties of HoIn{sub 3−x}Co{sub x}. United States: N. p., 2015. Web. doi:10.1063/1.4916338.
Chen, Songlin, Guo, Yongquan, E-mail: yqguo@ncepu.edu.cn, & He, Qiang. Phase evolution and magnetic properties of HoIn{sub 3−x}Co{sub x}. United States. doi:10.1063/1.4916338.
Chen, Songlin, Guo, Yongquan, E-mail: yqguo@ncepu.edu.cn, and He, Qiang. Sat . "Phase evolution and magnetic properties of HoIn{sub 3−x}Co{sub x}". United States. doi:10.1063/1.4916338.
@article{osti_22399338,
title = {Phase evolution and magnetic properties of HoIn{sub 3−x}Co{sub x}},
author = {Chen, Songlin and Guo, Yongquan, E-mail: yqguo@ncepu.edu.cn and He, Qiang},
abstractNote = {The phase evolution of HoIn{sub 3−x}Co{sub x} exhibits the phase transformations from the original HoIn{sub 3} with cubic structure to the intermediated HoCo{sub 2}In with orthorhombic structure and to the final HoCo{sub 3} with rhombohedral structure. The corresponding magnetic states are found to closely associate with the structural phase transformation of HoIn{sub 3−x}Co{sub x}.With increasing Co contents, HoIn{sub 3−x}Co{sub x} are paramagnetic in region of x < 0.6, mixture of paramagnetic and ferromagnetic in range of 0.6 < x < 1.8, and ferromagnetic in range of 3 > x > 2.4 at room temperature, respectively. The field dependence of magnetization curves follows an equation of M=M{sub s}(1−a/H )+χH, where M{sub s} and χ are corresponding to the saturation moment and susceptibility; a is a parameter related to the external field. The fitting results show that the susceptibility increases with increasing Co contents and M{sub s} depends upon the Co content as well. It implies that the evolution of magnetic phases in HoIn{sub 3−x}Co{sub x} might originate from the change of exchange interaction from the one between the isolated Co spins and the surrounding conduction electrons in Co-poor regime to the one between Co-Co pairs mediated by the conduction electrons in Co-rich regime.},
doi = {10.1063/1.4916338},
journal = {Journal of Applied Physics},
number = 12,
volume = 117,
place = {United States},
year = {Sat Mar 28 00:00:00 EDT 2015},
month = {Sat Mar 28 00:00:00 EDT 2015}
}