Magnetic and nonmagnetic impurity effect on magnetic orderings of the isosceles-triangular-lattice antiferromagnet CuMnO

Terada, Noriki*; Tsuchiya, Yoshinori*; Kitazawa, Hideaki*; Metoki, Naoto

We have investigated magnetic and nonmagnetic impurity substitution effects on magnetic ordering of a frustrated isosceles triangular lattice antiferromagnet CuMnO by means of the magnetic neutron diffraction measurements on Cu(Mn $_{1-y}$ Ga)O. While the magnetic wave vector of the magnetic ground state of "magnetically" substituted Cu(Mn $_{1-x}$ Cu)O with x = 0:04 is Q = (-1/2 1/2 0), that in the "nonmagnetically" substituted Cu(Mn $_{1-y}$ Ga)O with y =0.05, 0.15 and 0.20 is Q = (-1/2 1/2 1/2) that is identical to that of pure CuMnO. We discuss an influence of magnetic or nonmagnetic impurity substitution on the magnetic ordering of CuMnO, by comparing the results of Cu(Mn $_{1-y}$ Ga)O with Cu(Mn $_{1-x}$ Cux)O.

Language	:	English
Journal	:	Journal of the Korean Physical Society
Volume	:	62
Number	:	12
Pages	:	p.1905 - 1909
Publication Year/Month	:	2013/06
Meeting title	:	19th International Conference on Magnetism with Strongly Correlated Electron Systems 2012 (ICM 2012)
Held date	:	2012/07
Location (city)	:	Busan
Location (country)	:	Korea
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.3938/jkps.62.1905
DOI for research data	:
Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
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Article of JAEA R&D Review	:
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Registration No. : BB20120594
JAEA Abstracts No. : 42001420
Paper Submission No. : 15046

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