First-order phase transition to a nonmagnetic ground state in nonsymmorphic NbCrP
First-order phase transition to a nonmagnetic ground state in nonsymmorphic NbCrP
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DOI：
10.1103/physrevb.102.205110
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发表时间：
2020-11
影响因子：
3.7
通讯作者：
Yoshiki Kuwata;H. Kotegawa;H. Tou;H. Harima;Q. Ding;K. Takeda;J. Hayashi;E. Matsuoka;H. Sugawara;T. Sakurai;H. Ohta;Y. Furukawa
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文献类型：
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作者：
Yoshiki Kuwata;H. Kotegawa;H. Tou;H. Harima;Q. Ding;K. Takeda;J. Hayashi;E. Matsuoka;H. Sugawara;T. Sakurai;H. Ohta;Y. Furukawa
我们报告的一级相变的发现在125 K左右的NbCrP，这是一个非对称晶体与$Pnma$空间群。从电阻率，磁化率，和核磁共振测量使用晶体由锡通量的方法，高温（HT）相的特征在于是具有不可忽略的磁各向异性的金属。低温（LT）相也被发现是一个低对称性的晶体的金属态。在LT相，自旋磁化率比HT相降低了$\ensuremath{\sim} 30%$，表明相变是由电子不稳定性触发的。通过与其他非对称化合物RuP和RuAs的电子结构的比较，讨论了NbCrP相变的可能起源。
We report the discovery of a first-order phase transition at around 125 K in NbCrP, which is a nonsymmorphic crystal with the $Pnma$ space group. From the resistivity, magnetic susceptibility, and nuclear magnetic resonance measurements using crystals made by the Sn-flux method, the high-temperature (HT) phase is characterized to be metallic with a non-negligible magnetic anisotropy. The low-temperature (LT) phase is also found to be a nonmagnetic metallic state with a crystal of lower symmetry. In the LT phase, the spin susceptibility is reduced by $\ensuremath{\sim}30%$ from that in the HT phase, suggesting that the phase transition is triggered by the electronic instability. The possible origin of the phase transition in NbCrP is discussed based on the electronic structure by comparing it with those in other nonsymmorphic compounds, RuP and RuAs.