Direct three-dimensional ordering of quasi-one-dimensional quantum dimer system near critical fields

Direct three-dimensional ordering of quasi-one-dimensional quantum dimer system near critical fields
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临界场附近准一维量子二聚体系统的直接三维排序

DOI：
10.1103/physrevb.95.020408
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发表时间：
2017
期刊：
Phys. Rev. B
影响因子：
--
通讯作者：
and Yuko Hosokoshi
and Yuko Hosokoshi
中科院分区：
--
文献类型：
--
作者：
Taku Matsushita;Nobuyoshi Hori;Seiya Takata;Nobuo Wada;Naoki Amaya;and Yuko Hosokoshi

文献摘要

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利用五氟苯基硝基氮氧化物（）中反铁磁键交换链的交流磁化率和比热，研究了准一维二聚体体系中简并硬核玻色子的自旋有序维数。在无间隙区域的中间场，分别观察到与Tomonaga-Luttinger液体对应的1D短程有序（SRO）和低温下的三维（3D）远程有序（LRO BEC），这与小链间相互作用的预期一致。相比之下，在临界场周围建立了一个明确的区域，在该区域3D LRO发生，而在较高温度下没有1D SRO的发展。
Dimensionalities ofspin orderings or degenerate hard-core bosons in a quasi-one-dimensional (1D) dimer system are examined by the ac susceptibility and specific heat of antiferromagnetic bond-alternating chains in pentafluorophenyl nitronyl nitroxide (). At intermediate fields in the gapless region, the 1D short-range order (SRO) corresponding to the Tomonaga-Luttinger liquid and three-dimensional (3D) long-range order (LRO BEC) at lower temperatures are separately observed, as expected from the small interchain interaction. In contrast, a definite region around the critical field was established where 3D LRO occurs without the development of 1D SRO at higher temperatures.