Successive phase transitions and phase diagrams for the quasi-two-dimensional easy-axis triangular antiferromagnet Rb 4Mn(MoO4)3

R. Ishii, Shu Tanaka, K. Onuma, Y. Nambu, M. Tokunaga, T. Sakakibara, N. Kawashima, Y. Maeno, C. Broholm, D. P. Gautreaux, J. Y. Chan, S. Nakatsuji

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Abstract

Using magnetic, thermal and neutron measurements we show that Rb 4Mn(MoO4)3 is a quasi-2D triangular Heisenberg antiferromagnet with easy-axis anisotropy and successive transitions bracketing an intermediate collinear phase. An accurate quantitative account of the phase diagram is achieved through Monte Carlo simulation of a spin Hamiltonian with easy-axis anisotropy D=0.22J.

Original languageEnglish
Article number17001
JournalEPL
Volume94
Issue number1
DOIs
Publication statusPublished - 2011 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Ishii, R., Tanaka, S., Onuma, K., Nambu, Y., Tokunaga, M., Sakakibara, T., Kawashima, N., Maeno, Y., Broholm, C., Gautreaux, D. P., Chan, J. Y., & Nakatsuji, S. (2011). Successive phase transitions and phase diagrams for the quasi-two-dimensional easy-axis triangular antiferromagnet Rb 4Mn(MoO4)3. EPL, 94(1), [17001]. https://doi.org/10.1209/0295-5075/94/17001