Jeon, Jeehoon Park, Tae-Eon Jang, Chaun Kim, Taeyueb Hong, Jinki Koo, Hyun Cheol 2024-01-19T21:03:09Z 2024-01-19T21:03:09Z 2021-09-05 2019-01 0374-4884 https://pubs.kist.re.kr/handle/201004/120520 In order to investigate the effective mass of a single-crystalline WTe2 layer, we measured the temperature dependence of the Shubnikov-de Haas oscillation. In this method, the magnetoresistance with a perpendicular magnetic field is monitored by changing the temperature from 1.9 K to 6 K. The extracted effective mass of WTe2 for magnetic fields ranging from 6.8 T to 8.7 T is m* = 0.327m(0) which is almost constant in this range. The theoretical expectation values of m*/m(0) for the valence and the conduction bands are 0.58 and 0.26, respectively; the experimental value of the effective mass is between these two values. Thus, our results clearly show that single-crystalline WTe2 has both electron- and hole-like pockets that simultaneously contribute to electrical transport in the channel. English KOREAN PHYSICAL SOC SPIN PRECESSION MAGNETIC-FIELD GAS Electrical Observation of the Effective Mass in a Single-Crystal WTe2 Layer Article 10.3938/jkps.74.154 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.74, no.2, pp.154 - 158 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 74 2 154 158 scie scopus kci ART002433921 000456794400015 2-s2.0-85060618849 Physics, Multidisciplinary Physics Article; Proceedings Paper SPIN PRECESSION MAGNETIC-FIELD GAS Effective mass WTe2 Shubnikov-de Haas oscillation Magnetoresistance Transition-metal dichalcogenides