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Nov 24, 2024 | 
nature.com | Xia Wang |Xiaodong Li |Dong Zhou |Binghai Yan
AbstractElectrocatalytic water splitting is a promising approach for clean hydrogen production, but the process is hindered by the sluggish kinetics of the anodic oxygen evolution reaction (OER) owing to the spin-dependent electron transfer process. Efforts to control spin through chirality and magnetization have shown potential in enhancing OER performance.
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Jul 22, 2024 | 
nature.com | Jingyue Wang |Junwei Huang |Daniel Kaplan |Xuehan Zhou |Xuzhong Cong |Zengwei Zhu | +3 more
AbstractIn the presence of a high magnetic field, quantum Hall systems usually host both even- and odd-integer quantized states because of lifted band degeneracies. Selective control of these quantized states is challenging but essential to understand the exotic ground states and manipulate the spin textures. Here we demonstrate the quantum Hall effect in Bi2O2Se thin films.
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Jul 22, 2024 | nature.com | Jingyue Wang |Junwei Huang |Daniel Kaplan |Xuehan Zhou |Xuzhong Cong |Zengwei Zhu | +3 more
AbstractIn the presence of a high magnetic field, quantum Hall systems usually host both even- and odd-integer quantized states because of lifted band degeneracies. Selective control of these quantized states is challenging but essential to understand the exotic ground states and manipulate the spin textures. Here we demonstrate the quantum Hall effect in Bi2O2Se thin films.
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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 »
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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.
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Jan 18, 2024 | 
link.aps.org | Yizhou Liu |Binghai Yan
The ability to selectively excite light with fixed handedness is crucial for circularly polarized light emission. It is commonly believed that the luminescent material chirality determines the emitted light handedness, regardless of the light emitting direction. In this paper, we propose an anomalous circular polarized light emission (ACPLE) whose handedness actually relies on the emission direction and current direction in electroluminescence.
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Jan 17, 2024 | 
nature.com | Ayelet J. Uzan-Narovlansky |Omer Kneller |Barry D. Bruner |Olga Smirnova |Binghai Yan |Misha Ivanov
AbstractEver since its discovery1, the notion of the Berry phase has permeated all branches of physics and plays an important part in a variety of quantum phenomena2. However, so far all its realizations have been based on a continuous evolution of the quantum state, following a cyclic path.
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Jan 16, 2024 | 
go.nature.com | Ayelet J. Uzan-Narovlansky |Omer Kneller |Barry D. Bruner |Olga Smirnova |Binghai Yan |Misha Ivanov
AbstractEver since its discovery1, the notion of the Berry phase has permeated all branches of physics and plays an important part in a variety of quantum phenomena2. However, so far all its realizations have been based on a continuous evolution of the quantum state, following a cyclic path.
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Apr 22, 2023 | 
nature.com | Binghai Yan
AbstractElectron hydrodynamics typically emerges in electron fluids with a high electron–electron collision rate. However, new experiments with thin flakes of WTe2 have revealed that other momentum-conserving scattering processes can replace the role of the electron–electron interaction, thereby leading to a novel, so-called para-hydrodynamic regime. Here, we develop the kinetic theory for para-hydrodynamic transport.
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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.
