Journal Article

FZJ-2025-02636

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Field-driven spin structure evolution in MnCr 2 S 4 : A high-field single-crystal neutron diffraction study

Duc, F. ; Qureshi, N. ; Suwa, H. ; Ressouche, E. ; Songvilay, M. ; Prokhnenko, O. ; Gazizulina, A. ; Bourdarot, F. ; Tsurkan, V. ; Zherlitsyn, S. ; Prodan, L. ; Bertin, A. ; Schneidewind, A.FZJ* ; Hoser, A. ; Uhlarz, M. ; Herrmannsdörfer, T. ; Wosnitza, J. ; Simonet, V. ; Chattopadhyay, S. (Corresponding author)

2024
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevB.110.214416  doi:10.34734/FZJ-2025-02636

Abstract: We present a comprehensive microscopic insight into the spin configurations within the bond-frustrated cubicspinel compound MnCr2S4 directly unveiled through extensive single-crystal neutron diffraction studies carriedout in zero magnetic field and in fields up to 35 T. While our zero field results confirm the ferrimagnetic structurewith an antiparallel arrangement of the magnetic Cr3+ and Mn2+ sublattices below TFiM ≈ 65 K, as well as thepresence of the exotic Yafet-Kittel phase below TYK ≈ 5 K, our data measured in fields enable us to preciselydetermine the field-induced magnetic structures and their evolution across the phase transitions at μ0H1 ≈ 11 Tand μ0H2 ≈ 25 T and beyond that towards μ0H3 (≈50 T). Additionally, combining our experimental findingswith mean-field-theory calculations reveals a complex field dependence of the Mn-Mn and Mn-Cr exchangeinteractions across the different phases, highlighting the significant influence of spin-lattice coupling in thismaterial.

Keyword(s): Basic research (1st) ; Magnetism (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. JCNS-4 (JCNS-4)
3. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)
3. DFG project G:(GEPRIS)247310070 - SFB 1143: Korrelierter Magnetismus: Von Frustration zu Topologie (247310070) (247310070)
4. DFG project G:(GEPRIS)390858490 - EXC 2147: Komplexität und Topologie in Quantenmaterialien (CT.QMAT) (390858490) (390858490)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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