Magnetic order and ballistic spin transport in a sine-Gordon spin chain [dataset]

Manson, J. L. (Eastern Washington University, US); Kaech, S. J. (Eastern Washington University, US); Goddard, P. A. (University of Warwick, UK); Gomilsek, M. (Jozef Stefan Institute, Slovenia); Blundell, S. J. (University of Oxford, UK); Lancaster, T. (Durham University, UK); Hicken, T. J. (Durham University, UK); Pratt, F. L. (STFC-ISIS Facility, UK); Huddart, B. M. (Durham University, UK)

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Magnetic order and ballistic spin transport in a sine-Gordon spin chain [dataset] Open Access

We report the results of muon-spin spectroscopy (μ+SR) measurements on the staggered molecular spin chain [pym-Cu(NO3)2(H2O)2] (pym = pyrimidine), a material previously described using sine-Gordon field theory. Zero-field μ+SR reveals a long range magnetically ordered ground state below a transition temperature TN=0.23(1) K. Using longitudinal-field (LF) μ+SR we investigate the dynamic response in applied magnetic fields 0<B<500 mT and find evidence for ballistic spin transport. Our LF μ+SR measurements on the chiral spin chain [Cu(pym)(H2O)4]SiF6·H2O instead demonstrate one-dimensional spin diffusion, and the distinct spin transport in these two systems suggests that additional anisotropic interactions play an important role in determining the nature of spin transport in S=1/2 antiferromagnetic chains.

Descriptions

Resource type: Dataset
Contributors: Creator: Lancaster, T. ¹
Creator: Huddart, B. M. ¹
Creator: Gomilsek, M. ²
Creator: Hicken, T. J. ¹
Creator: Pratt, F. L. ³
Creator: Blundell, S. J. ⁴
Creator: Goddard, P. A. ⁵
Creator: Kaech, S. J. ⁶
Creator: Manson, J. L. ⁶

¹ Durham University, UK
² Jozef Stefan Institute, Slovenia
³ STFC-ISIS Facility, UK
⁴ University of Oxford, UK
⁵ University of Warwick, UK
⁶ Eastern Washington University, US
Funder: Engineering and Physical Sciences Research Council
Science and Technology Facilities Council
National Science Foundation
European Research Council
Javna Agencija za Raziskovalno Dejavnost RS
Research methods
Other description
Keyword: Antiferromagnetism
Magnetism
1-dimensional spin chains
Density functional theory
Muon spin relaxation & rotation
Subject
Location
Language: English
Cited in: doi:10.1103/PhysRevB.103.L060405
Identifier: ark:/32150/r2bv73c042s
doi:10.15128/r2bv73c042s
Rights: Creative Commons Attribution 4.0 International (CC BY)
Publisher: Durham University
Date Created

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