13 Result(s)
within
Shaolong He
Science, Humanities and Social Sciences, multidisciplinary
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Article
Open AccessRashba-like spin splitting along three momentum directions in trigonal layered PtBi2
Spin-orbit coupling (SOC) has gained much attention for its rich physical phenomena and highly promising applications in spintronic devices. The Rashba-type SOC in systems with inversion symmetry breaking is p...
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Open AccessElectronic evidence of temperature-induced Lifshitz transition and topological nature in ZrTe5
The topological materials have attracted much attention for their unique electronic structure and peculiar physical properties. ZrTe5 has host a long-standing puzzle on its anomalous transport properties manifest...
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In situ carrier tuning in high temperature superconductor \(\hbox {Bi}_2\hbox {Sr}_2\hbox {CaCu}_2\hbox {O}_{8+\varvec{\delta} }\) by potassium deposition
We report a successful tuning of the hole do** level over a wide range in high temperature superconductor $$\hbox {Bi}_2\hbox {Sr}_2...
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Open AccessCommon electronic origin of superconductivity in (Li,Fe)OHFeSe bulk superconductor and single-layer FeSe/SrTiO3 films
The mechanism of high-temperature superconductivity in the iron-based superconductors remains an outstanding issue in condensed matter physics. The electronic structure plays an essential role in dictating sup...
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Open AccessAnomalous High-Energy Waterfall-Like Electronic Structure in 5 d Transition Metal Oxide Sr2IrO4 with a Strong Spin-Orbit Coupling
The low energy electronic structure of Sr2IrO4 has been well studied and understood in terms of an effective Jeff = 1/2 Mott insulator model. However, little work has been done in studying its high energy electro...
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Dichotomy of the electronic structure and superconductivity between single-layer and double-layer FeSe/SrTiO3 films
The latest discovery of possible high-temperature superconductivity in the single-layer FeSe film grown on a SrTiO3 substrate has generated much attention. Initial work found that, while the single-layer FeSe/SrT...
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Open AccessEvidence of Topological Surface State in Three-Dimensional Dirac Semimetal Cd3As2
The three-dimensional topological semimetals represent a new quantum state of matter. Distinct from the surface state in the topological insulators that exhibits linear dispersion in two-dimensional momentum p...
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Open AccessStrong Anisotropy of Dirac Cones in SrMnBi2 and CaMnBi2 Revealed by Angle-Resolved Photoemission Spectroscopy
The Dirac materials, such as graphene and three-dimensional topological insulators, have attracted much attention because they exhibit novel quantum phenomena with their low energy electrons governed by the re...
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Orbital-selective spin texture and its manipulation in a topological insulator
Topological insulators represent a new quantum state of matter that are insulating in the bulk but metallic on the edge or surface. In the Dirac surface state, it is well-established that the electron spin is ...
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Article
Disappearance of nodal gap across the insulator–superconductor transition in a copper-oxide superconductor
The parent compound of the copper-oxide high-temperature superconductors is a Mott insulator. Superconductivity is realized by do** an appropriate amount of charge carriers. How a Mott insulator transforms i...
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Open AccessTunable Dirac Fermion Dynamics in Topological Insulators
Three-dimensional topological insulators are characterized by insulating bulk state and metallic surface state involving relativistic Dirac fermions which are responsible for exotic quantum phenomena and poten...
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Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor
The recent discovery of high-temperature superconductivity in iron-based compounds has attracted much attention. How to further increase the superconducting transition temperature (Tc) and how to understand the s...
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Article
Preparation and vibrational modes of C60 · 2CHBr3
C60· 2CHBr3 polycrystalline powder was prepared by the solution method. The vibrational modes of the sample were studied by Raman scattering and infrared adsorption techniques. The Raman spectra showed that the A
