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Research on heat transport in low-dimensional magnetic materials

机译：低维磁性材料的传热研究

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Low-dimensional magnetic materials have attracted much attention due to their exotic ground states, rich physical properties, and their close relationship to high superconductor materials. Studies on the physical properties of the low-dimensional magnetic materials are useful to probe the mechanism of the fantastic phenomena and develop new function materials. This dissertation focuses on the quantum phase transition induced by magnetic field and role of magnetic excitations in the heat transport of low-dimensional magnetic materials. The low-temperature heat transport properties of the spin-dimer material with BEC transition, the one-dimensional magnetic material and the organic spin chain material with staggered magnetization are studied. Low-dimensional magnetic materials provides research related to the quantum ground state and the excited state model, the new phase and the unique possibility of competition between quantum fluctuations and thermal fluctuations, so for quasi-one-dimensional magnetic materials research has developed into an independent research. From a theoretical point of view, this research provides a broad platform for a variety of theoretical and computational methods.
机译：低维磁性材料因其奇异的基态，丰富的物理特性以及与高超导材料的密切关系而备受关注。对低维磁性材料的物理性质的研究有助于探索奇异现象的机理并开发新的功能材料。本文主要研究磁场引起的量子相变以及磁激发在低维磁性材料传热中的作用。研究了具有BEC转变的自旋二聚体材料，一维磁性材料和具有交错磁化强度的有机自旋链材料的低温传热性能。低维磁性材料提供了与量子基态和激发态模型，新阶段以及量子涨落和热涨落之间竞争的独特可能性有关的研究，因此对于准一维磁性材料的研究已经发展成为一个独立的领域。研究。从理论的角度来看，这项研究为各种理论和计算方法提供了广阔的平台。

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