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Fe-Induced Enhancement of Antiferromagnetic Spin Correlations in Mn2−xFexBO4 Full article

Journal Journal of Magnetism and Magnetic Materials
ISSN: 0304-8853
Output data Year: 2018, Volume: 452, Pages: 90-99 Pages count : 10 DOI: 10.1016/j.jmmm.2017.12.037
Tags SRO spin correlations; Spin-glass; REHAC; Magnetic frustrations
Authors Kazak N.V. 1 , Platunov M.S. 1 , Knyazev Yu.V. 1 , Moshkina E.M. 1,2 , Gavrilkin S.Yu. 3 , Bayukov O.A 1 , Gorev M.V. 1 , Pogoreltsev E.I. 1 , Zeer G.M. 4 , Zharkov S.M. 1,4 , Ovchinnikov S.G. 1
Affiliations
1 Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
2 Siberian State University of Science and Technologies, 660014 Krasnoyarsk, Russia
3 P.N. Lebedev Physical Institute of RAS, 119991 Moscow, Russia
4 Siberian Federal University, 660041 Krasnoyarsk, Russia

Abstract: Fe substitution effect on the magnetic behavior of Mn2-xFexBO4 (x = 0.3, 0.5, 0.7) warwickites has been investigated combining Mossbauer spectroscopy, dc magnetization, ac magnetic susceptibility, and heat capacity measurements. The Fe3+ ions distribution over two crystallographic nonequivalent sites is studied. The Fe introduction breaks a long-range antiferromagnetic order and leads to onset of spin-glass ground state. The antiferromagnetic short-range-order spin correlations persist up to temperatures well above T-SG reflecting in increasing deviations from the Curie-Weiss law, the reduced effective magnetic moment and "missing" entropy. The results are interpreted in the terms of the progressive increase of the frustration effect and the formation of spin-correlated regions.
Cite: Kazak N.V. , Platunov M.S. , Knyazev Y.V. , Moshkina E.M. , Gavrilkin S.Y. , Bayukov O.A. , Gorev M.V. , Pogoreltsev E.I. , Zeer G.M. , Zharkov S.M. , Ovchinnikov S.G.
Fe-Induced Enhancement of Antiferromagnetic Spin Correlations in Mn2−xFexBO4
Journal of Magnetism and Magnetic Materials. 2018. V.452. P.90-99. DOI: 10.1016/j.jmmm.2017.12.037 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: Jul 26, 2017
Accepted: Dec 11, 2017
Published online: Dec 11, 2017
Published print: Apr 15, 2018
Identifiers:
Web of science: WOS:000425547700015
Scopus: 2-s2.0-85038212943
Elibrary: 35478341
Chemical Abstracts: 2017:1994421
Chemical Abstracts (print): 170:229619
OpenAlex: W2774566517
Citing:
DB Citing
Web of science 6
Scopus 6
OpenAlex 7
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