Quantum transport observed in films of magnetic topological semimetal EuSb$_2$
Autor: | Ohno, Mizuki, Uchida, Masaki, Kurihara, Ryosuke, Minami, Susumu, Nakazawa, Yusuke, Sato, Shin, Kriener, Markus, Hirayama, Motoaki, Miyake, Atsushi, Taguchi, Yasujiro, Arita, Ryotaro, Tokunaga, Masashi, Kawasaki, Masashi |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | Phys. Rev. B 103, 165144 (2021) |
Druh dokumentu: | Working Paper |
DOI: | 10.1103/PhysRevB.103.165144 |
Popis: | We report fabrication of EuSb$_2$ single-crystalline films and investigation of their quantum transport. First-principles calculations demonstrate that EuSb$_2$ is a magnetic topological nodal-line semimetal protected by nonsymmorphic symmetry. Observed Shubnikov-de Haas oscillations with multiple frequency components exhibit small effective masses and two-dimensional field-angle dependence even in a 250 nm thick film, further suggesting possible contributions of surface states. This finding of the high-mobility magnetic topological semimetal will trigger further investigation of exotic quantum transport phenomena by controlling magnetic order in topological semimetal films. Comment: 14 pages, 4 figures + supplementary 6 pages, 5 figures |
Databáze: | arXiv |
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