Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 853, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.157346
Keywords
Field-induced antiferromagnet; Low-dimensional; Tomonaga-Luttinger-liquid
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Funding
- National Council for Scientific and Technological Development (CNPq) [141629/2016-9]
- CNPQ
- Sao Paulo research foundation (FAPESP) [2017/07248-9]
- CNPq [429511/2018-3]
- FAPESP [2015/16191-5]
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Through experimental and theoretical techniques, a study on the spin-1 field-induced antiferromagnet NiCl2-4SC(NH2)(2) was conducted to delimit the Tomonaga-Luttinger liquid region and verify discrepancies in the value of the single-ion anisotropy parameter D.
Through a combination of experimental and theoretical techniques, we study the spin-1 field-induced antiferromagnet NiCl2-4SC(NH2)(2), (DTN). Specifically, we use magnetic susceptibility and specific heat measurements, combined with Quantum Monte-Carlo calculations to delimit the quasi-1D Tomonaga-Luttinger-liquid region just above the BEC phase diagram and extend our studies to higher temperatures, where the spin interactions become negligible. This also allows us to verify some discrepancies in the value of the single-ion anisotropy parameter D, which are not well understood yet. (C) 2020 Elsevier B.V. All rights reserved.
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