Novel half-magnetization plateau and nematiclike transition in the $S=1$ skew chain ${\mathrm{Ni}}_{2}{\mathrm{V}}_{2}{\mathrm{O}}_{7}$

Novel half-magnetization plateau and nematiclike transition in the $S = 1$ skew chain ${Ni}_{2} V_{2} O_{7}$

Z. W. Ouyang, Y. C. Sun, J. F. Wang, X. Y. Yue, R. Chen, Z. X. Wang, Z. Z. He, Z. C. Xia, Y. Liu, and G. H. Rao

Phys. Rev. B 97, 144406 – Published 11 April 2018

Abstract

A quantized magnetization plateau is usually not expected when a classic spin-flop transition occurs in a low-dimensional antiferromagnet. Here, we report an experimental observation of a spin-flop transition followed by a wide half-magnetization plateau in the $S = 1$ skew-chain system ${Ni}_{2} V_{2} O_{7}$ . This plateau, which is stabilized in fields of 8–30 T, is realized through an exotic nematiclike phase transition for magnetic fields applied along all three crystallographic axes, resulting in rich anisotropic phase diagrams. We discuss a possible mechanism whereby the magnetic frustration and interchain interactions may cause this half-magnetization plateau, which is in agreement with our exact diagonalization result.

Received 19 December 2017
Revised 26 March 2018

DOI:https://doi.org/10.1103/PhysRevB.97.144406

Physics Subject Headings (PhySH)

Antiferromagnetism Magnetic interactions

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Z. W. Ouyang¹, Y. C. Sun¹, J. F. Wang^1,*, X. Y. Yue¹, R. Chen¹, Z. X. Wang¹, Z. Z. He^2,†, Z. C. Xia¹, Y. Liu³, and G. H. Rao⁴

¹Wuhan National High Magnetic Field Center & School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
²State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
³School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
⁴School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, People's Republic of China

^*jfwang@hust.edu.cn
^†hezz@fjirsm.ac.cn

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Vol. 97, Iss. 14 — 1 April 2018

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Physical Review B

covering condensed matter and materials physics

Novel half-magnetization plateau and nematiclike transition in the $S = 1$ skew chain ${Ni}_{2} V_{2} O_{7}$

Z. W. Ouyang, Y. C. Sun, J. F. Wang, X. Y. Yue, R. Chen, Z. X. Wang, Z. Z. He, Z. C. Xia, Y. Liu, and G. H. Rao

Phys. Rev. B 97, 144406 – Published 11 April 2018

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Physical Review B

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Novel half-magnetization plateau and nematiclike transition in the S=1 skew chain Ni2V2O7

Z. W. Ouyang, Y. C. Sun, J. F. Wang, X. Y. Yue, R. Chen, Z. X. Wang, Z. Z. He, Z. C. Xia, Y. Liu, and G. H. Rao

Phys. Rev. B 97, 144406 – Published 11 April 2018

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Novel half-magnetization plateau and nematiclike transition in the $S = 1$ skew chain ${Ni}_{2} V_{2} O_{7}$