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arXiv · 2006.05536

Electronic and Magnetic Properties of Topological Semimetal Candidate NdSbTe

Krishna Pandey·Rabindra Basnet·Aaron Wegner·Gokul Acharya·Md Rafique Un Nabi·Jiangwei Liu·Jian Wang·Yukiko Takahashi·Bo Da·Jin Hu
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Abstract

ZrSiS-type materials represent a large material family with unusual coexistence of topological nonsymmorphic Dirac fermions and nodal-line fermions. As a special group of ZrSiS-family, LnSbTe (Ln = Lanthanide rare earth) compounds provide a unique opportunity to explore new quantum phases due to the intrinsic magnetism induced by Ln. Here we report the single crystal growth and characterization of NdSbTe, a previously unexplored LnSbTe compound. NdSbTe has an antiferromagnetic ground state with field-driven metamagnetic transitions similar to other known LnSbTe, but exhibits distinct enhanced electronic correlations characterized by large a Sommerfeld coefficient of 115 mJ/mol $K^2$, which is the highest among the known LnSbTe compounds. Furthermore, our transport studies have revealed the coupling with magnetism and signatures of Kondo localization. All these findings establish NdSbTe as a new platform for observing novel phenomena arising from the interplay between magnetism, topology, and electron correlations.

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Krishna Pandey, Rabindra Basnet, Aaron Wegner, Gokul Acharya, Md Rafique Un Nabi, Jiangwei Liu, Jian Wang, Yukiko Takahashi, Bo Da, Jin Hu. 2020-06-09. Electronic and Magnetic Properties of Topological Semimetal Candidate NdSbTe. https://doi.org/10.1103/physrevb.101.235161

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