论文标题
一阶相变向非磁基状NBCRP中的非磁基状态
First-order phase transition to a nonmagnetic ground state in nonsymmorphic NbCrP
论文作者
论文摘要
我们报告了在NBCRP中大约125 K的一阶相变的发现，这是一个具有PNMA空间组的非肌晶体。从使用SN-Flux方法制成的晶体的电阻率，磁化率和核磁共振测量中，高温（HT）相的特征是具有不可忽略的磁各向异性的金属。还发现低温（LT）相是具有较低对称性晶体的非磁性金属状态。在LT阶段，在HT阶段，自旋敏感性降低了约30％，这表明相变是由电子不稳定性触发的。基于电子结构与其他非肌化化合物RUP和RUA中的相比，讨论了NBCRP中相变的可能起源。
We report the discovery of a first-order phase transition at around 125 K in NbCrP, which is a nonsymmorphic crystal with Pnma space group. From the resistivity, magnetic susceptibility, and nuclear magnetic resonance measurements using the 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 ~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 with those in other nonsymmorphic compounds RuP and RuAs.
