title: Odd-Integer Quantum Hall States and Giant Spin Susceptibility in p-Type Few-Layer WSe_{2}.
abstract: We fabricate high-mobility p-type few-layer WSe_{2} field-effect transistors and surprisingly observe a series of quantum Hall (QH) states following an unconventional sequence predominated by odd-integer states under a moderate strength magnetic field. By tilting the magnetic field, we discover Landau level crossing effects at ultralow coincident angles, revealing that the Zeeman energy is about 3 times as large as the cyclotron energy near the valence band top at the Γ valley. This result implies the significant roles played by the exchange interactions in p-type few-layer WSe_{2}, in which itinerant or QH ferromagnetism likely occurs. Evidently, the Γ valley of few-layer WSe_{2} offers a unique platform with unusually heavy hole carriers and a substantially enhanced g factor for exploring strongly correlated phenomena.
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Shuigang
authors.initials: S
authors.lastname: Xu
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Junying
authors.initials: J
authors.lastname: Shen
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Gen
authors.initials: G
authors.lastname: Long
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Zefei
authors.initials: Z
authors.lastname: Wu
authors.affiliation: Department of Physics, University of Texas at Dallas, Richardson, Texas 75080, USA.
authors.forename: Zhi-Qiang
authors.initials: ZQ
authors.lastname: Bao
authors.affiliation: Department of Physics, University of Texas at Dallas, Richardson, Texas 75080, USA.
authors.forename: Cheng-Cheng
authors.initials: CC
authors.lastname: Liu
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Xiao
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Tianyi
authors.initials: T
authors.lastname: Han
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Jiangxiazi
authors.initials: J
authors.lastname: Lin
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Yingying
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Huanhuan
authors.initials: H
authors.lastname: Lu
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Jianqiang
authors.initials: J
authors.lastname: Hou
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Liheng
authors.initials: L
authors.lastname: An
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Yuanwei
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Cai
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: K M
authors.initials: KM
authors.lastname: Ho
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Yuheng
authors.initials: Y
authors.lastname: He
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Rolf
authors.initials: R
authors.lastname: Lortz
authors.affiliation: Department of Physics, University of Texas at Dallas, Richardson, Texas 75080, USA.
authors.forename: Fan
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Department of Physics and Center for Quantum Materials, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Wang