Quasi-one-dimensional Bose-Einstein condensation in the spin-1/2 ferromagnetic-leg ladder 3-I-V
Quasi-one-dimensional Bose-Einstein condensation in the spin-1/2 ferromagnetic-leg ladder 3-I-V
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DOI：
10.1103/physrevb.97.100406
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发表时间：
2018-03-29
影响因子：
3.7
通讯作者：
Sakakibara, T.
中科院分区：
文献类型：
--
作者：
Kono, Y.;Kittaka, S.;Sakakibara, T.
自旋 1/2 铁磁腿梯子 3-I-V [=3-(3-碘苯基)-1,5-二苯基二苯基]的量子临界性已针对饱和场 H-c 附近的反铁磁到顺磁相变进行了检查。在很宽的温度范围内，相界 T-c (H) 遵循幂律 T-c (H) α H-c -H。这种特征行为被讨论为准一维（准一维）玻色-爱因斯坦凝聚，这在理论上是针对弱耦合准一维铁磁体进行预测的。因此，3-I-V 为这一有吸引力的预测提供了第一个有希望的候选者。
Quantum criticality of the spin-1/2 ferromagnetic-leg ladder 3-I-V [=3-(3-iodophenyl)-1,5-diphenylverdazyl] has been examined with respect to the antiferromagnetic to paramagnetic phase transition near the saturation field H-c. The phase boundary T-c (H) follows the power-law T-c (H) alpha H-c -H for a wide temperature range. This characteristic behavior is discussed as a quasi-one-dimensional (quasi-1D) Bose-Einstein condensation, which is predicted theoretically for weakly coupled quasi-1D ferromagnets. Thus, 3-I-V provides the first promising candidate for this attractive prediction.