Experimental and theoretical delimitation of the quasi-1D Tomonaga-Luttinger-liquid regime in a spin-1 field-induced antiferromagnet
| Autor: | André P. Vieira, H. Fabrelli, Rafael S. Freitas, A. Paduan-Filho |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Field (physics) Condensed matter physics Mechanical Engineering Metals and Alloys 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Magnetic susceptibility 0104 chemical sciences Mechanics of Materials Luttinger liquid Materials Chemistry Antiferromagnetism Condensed Matter::Strongly Correlated Electrons MECÂNICA ESTATÍSTICA 0210 nano-technology Anisotropy Quantum Spin-½ Phase diagram |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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