Emergence of unconventional spin glass-like state in k-(ET)2Cu[N(CN)2]Cl by introducing weak randomness
Emergence of unconventional spin glass-like state in k-(ET)2Cu[N(CN)2]Cl by introducing weak randomness
复制标题
通过引入弱随机性在 k-(ET)2Cu[N(CN)2]Cl 中出现非常规自旋玻璃态
DOI：
10.1103/physrevb.104.155107
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发表时间：
2021
影响因子：
3.7
通讯作者：
Itou Tetsuaki
中科院分区：
文献类型：
--
作者：
Yamamoto Riku;Furukawa Tetsuya;Miyagawa Kazuya;Sasaki Takahiko;Kanoda Kazushi;Itou Tetsuaki
最近，Urai[物理学家]。报道了一种反铁磁长程有序态在x射线照射下通过非常规的自旋玻璃状态转变为量子自旋液体的研究进展。光子学报，24,117204 （2020）在这里，我们专注于自旋玻璃状态，并对其进行了详细的研究，使用核磁共振测量150-h x射线照射。我们发现自旋类玻璃态由两个组分组成：主组分继承了未辐照-的自旋结构，而次组分则不同于未辐照-的自旋结构。我们还发现，在类自旋玻璃状态下，即使在低温下，自旋矩也会在稳定方向上非常缓慢地波动，这很可能与Griffiths物理有关。
Recently, Urai [Phys. Rev. Lett. 124, 117204 (2020)PRLTAO0031-900710.1103/PhysRevLett.124.117204] reported that an antiferromagnetic long-range-ordered state in-changes into a quantum spin liquid via an unconventional spin glass-like state as randomness is introduced by x-ray irradiation. Here, we focused on the spin glass-like state and conducted a detailed investigation into it using-NMR measurements on 150-h x-ray-irradiated-. We found that the spin glass-like state is composed of two components: the major component inherits the spin structure of nonirradiated-, whereas the minor component differs from that of nonirradiated-. We also found that in the spin glass-like state, spin moments fluctuate very slowly around stable directions even at low temperatures, which is very likely related to the Griffiths physics.