Hengxin Tan

May 21, 2024 | link.aps.org | Hengxin Tan |Binghai Yan

Article Text (Subscription Required) Click to ExpandSupplemental Material (Subscription Required) Click to ExpandReferences (Subscription Required) Click to ExpandIssueVol. 109, Iss. 19 — 15 May 2024Access OptionsBuy Article »Log in with individual APS Journal Account »Log in with a username/password provided by your institution »Get access through a U.S. public or high school library »

Apr 5, 2024 | nature.com | Daniel Kaplan |Lujin Min |Hengxin Tan |Zhiqiang Mao |Binghai Yan |Cui-Zu Chang

AbstractRare-earth monopnictides are a family of materials simultaneously displaying complex magnetism, strong electronic correlation, and topological band structure. The recently discovered emergent arc-like surface states in these materials have been attributed to the multi-wave-vector antiferromagnetic order, yet the direct experimental evidence has been elusive.

Jul 28, 2023 | nature.com | Hengxin Tan |Daniel Kaplan

AbstractThe recently discovered kagome materials AV3Sb5 (A = K, Rb, Cs) attract intense research interest in intertwined topology, superconductivity, and charge density waves (CDW). Although the in-plane 2 × 2 CDW is well studied, its out-of-plane structural correlation with the Fermi surface properties is less understood. In this work, we advance the theoretical description of quantum oscillations and investigate the Fermi surface properties in the three-dimensional CDW phase of CsV3Sb5.

Mar 24, 2023 | link.aps.org | Hengxin Tan |Binghai Yan

Abstract Many experiments observed a metallic behavior at zero magnetic fields (antiferromagnetic phase, AFM) in MnBi2Te4 thin film transport, which coincides with gapless surface states observed by angle-resolved photoemission spectroscopy, while it can become a Chern insulator at field larger than 6 T (ferromagnetic phase, FM). Thus, the zero-field surface magnetism was once speculated to be different from the bulk AFM phase.