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PUBLICATIONS

Disorder from Order Among Anisotropic Next-Nearest-Neighbor Ising Spin Chains in SrHo2O4

Published

Author(s)

J.-J. Wen, W. Tian, V. O. Garlea, S. M. Koohpayeh, T. M. McQueen, H.-F. Li, J.-Q. Yan, Jose Rodriguez Rivera, D. Vaknin, Collin L. Broholm

Abstract

We describe why Ising spin chains with competing interactions in SrHo2O4 segregate into ordered and disordered ensembles at low temperatures (T). Using elastic neutron scattering, magnetization, and specific heat measurements, the two distinct spin chains are inferred to have Neel (arrow up, arrow down, arrow up, arrow down) and double Neel (arrow up, arrow up, arrow down, arrow down) ground states, respectively. Below TN = 0.68(2) K, the Neel chains develop three-dimensional long range order (LRO), which arrests further thermal equilibration of the double-Neel chains so they remain in a disordered incommensurate state for T below Ts = 0.52(2) K. SrHo2O4 distills an important feature of incommensurate low dimensional magnetism: kinetically trapped topological defects in a quasi-d-dimensional spin system can preclude order in d + 1 dimensions.
Citation
Physical Review B
Volume
91
Issue
5
Pub Type
Journals

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Keywords

Neutron Scattering, Magnetic Materials

Citation

Wen, J. , Tian, W. , Garlea, V. , Koohpayeh, S. , McQueen, T. , Li, H. , Yan, J. , Rodriguez Rivera, J. , Vaknin, D. and Broholm, C. (2015), Disorder from Order Among Anisotropic Next-Nearest-Neighbor Ising Spin Chains in SrHo<sub>2</sub>O<sub>4</sub>, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918137 (Accessed October 18, 2025)

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Created February 25, 2015, Updated October 12, 2021
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