Publication: Magnetic properties and magnetic structure of the frustrated quasi-one-dimensional antiferromagnet SrCuTe2 O6
3
Issued Date
2020-10-07
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ISSN
24699969
24699950
24699950
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2-s2.0-85093073679
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Mahidol University
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SCOPUS
Bibliographic Citation
Physical Review B. Vol.102, No.13 (2020)
Suggested Citation
P. Saeaun, Y. Zhao, P. Piyawongwatthana, T. J. Sato, F. C. Chou, M. Avdeev, G. Gitgeatpong, K. Matan Magnetic properties and magnetic structure of the frustrated quasi-one-dimensional antiferromagnet SrCuTe2 O6. Physical Review B. Vol.102, No.13 (2020). doi:10.1103/PhysRevB.102.134407 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/60002
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Title
Magnetic properties and magnetic structure of the frustrated quasi-one-dimensional antiferromagnet SrCuTe2 O6
Other Contributor(s)
Rajabhat University
A. James Clark School of Engineering
Australian Nuclear Science and Technology Organisation
National Synchrotron Radiation Research Center Taiwan
NIST Center for Neutron Research
Mahidol University
Tohoku University
National Taiwan University
Science
Ministry of Science and Technology
A. James Clark School of Engineering
Australian Nuclear Science and Technology Organisation
National Synchrotron Radiation Research Center Taiwan
NIST Center for Neutron Research
Mahidol University
Tohoku University
National Taiwan University
Science
Ministry of Science and Technology
Abstract
© 2020 American Physical Society. Magnetization measurements on single-crystal cubic SrCuTe2O6 with an applied magnetic field along three inequivalent high symmetry directions [100], [110], and [111] reveal weak magnetic anisotropy. The fits of the magnetic susceptibility to the result from a quantum Monte Carlo simulation on the Heisenberg spin-chain model, where the chain is formed via the dominant third-nearest-neighbor exchange interaction J3, yield the intrachain interaction (J3/kB) between 50.12(7) K for the applied field along [110] and 52.5(2) K along [100] with about the same g factor of 2.2. Single-crystal neutron diffraction unveils the transition to the magnetic ordered state as evidenced by the onset of the magnetic Bragg intensity at TN1=5.25(9)K with no anomaly of the second transition at TN2 reported previously. Based on irreducible representation theory and magnetic space group analysis of powder and single-crystal neutron diffraction data, the magnetic structure in the Shubnikov space group P4132, where the Cu2+S=1/2 spins antiferromagnetically align in the direction perpendicular to the spin chain, is proposed. The measured ordered moment of 0.52(6)μB, which represents 48% reduction from the expected value of 1μB, suggests the remaining influence of frustration resulting from the J1 and J2 bonds.