Results 21 to 30 of about 212,053 (100)

Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2

open access: yesAdvanced Physics Research, EarlyView.
Trigonal PtBi2 is a Weyl semimetal with recently demonstrated surface superconductivity. Scanning tunneling spectroscopy of the quasiparticle interference in the normal state of this material, combined with density functional theory calculations, reveals that the scattering between Fermi arcs dominates the interference spectra, providing conclusive ...
Sven Hoffmann   +12 more
wiley   +1 more source

Unveiling the Electronic Properties and Growth Mechanisms of 2D Layered Materials on Au Foils through Scanning Tunneling Microcopy/Spectroscopy Studies

open access: yesAdvanced Physics Research, EarlyView.
This review summarizes the recent advances of controllable syntheses of 2D materials on Au substrates, including the epitaxial growth of monolayer transition metal dichalcogenides single crystals, the construction of vertical heterostructures, and the preparation of novel 2D materials.
Wenzhi Quan   +3 more
wiley   +1 more source

Superconducting Diode Effects: Mechanisms, Materials and Applications

open access: yesAdvanced Physics Research, EarlyView.
Superconducting diode effects, nonreciprocal current characteristics of superconductors in the absence of both time reversal and inversion symmetry, exhibit non‐dissipative supercurrent in one direction and ohmic current in the opposite. Abstract Superconducting diode effects (SDEs) generally emerge in superconducting systems where both time‐reversal ...
Jiajun Ma, Ruiya Zhan, Xiao Lin
wiley   +1 more source

The Onset of Phase Transitions in Condensed Matter and Relativistic QFT [PDF]

open access: yesarXiv, 2000
Kibble and Zurek have provided a unifying causal picture for the appearance of topological defects like cosmic strings or vortices at the onset of phase transitions in relativistic QFT and condensed matter systems respectively. There is no direct experimental evidence in QFT, but in condensed matter the predictions are largely, but not wholly ...
arxiv  

2D Nonlayered Materials for Transistor Application

open access: yesAdvanced Physics Research, EarlyView.
2D nonlayered materials possess a vast material library and have comprehensive applications in transistors. However, at this stage, they hold great potential, but this potential has seen limited exploration compared to 2D layered materials. This review provides statistics on the nonlayered material library, CVD synthesis and characterization, advances ...
Yongqi Dai   +3 more
wiley   +1 more source

Orientation‐Dependent Upper Critical Magnetic Field and Density of State for Uranium Ditelluride

open access: yesAdvanced Physics Research, EarlyView.
This study investigates the orientation‐dependent upper critical magnetic field (HC2) and the density of states (DOS) in the unconventional superconductor UTe2. These results reveal an anisotropic HC2, with distinct critical fields along different crystallographic axes, highlighting the role of electronic correlations and spin‐triplet pairing.
Habtamu Anagaw Muluneh
wiley   +1 more source

Phase separation of Bose-Einstein condensates [PDF]

open access: yes, 1997
The zero-temperature system of two dilute overlapping Bose-Einstein condensates is unstable against long wavelength excitations if the interaction strength between the distinguishable bosons exceeds the geometric mean of the like-boson interaction strengths.
arxiv   +1 more source

TiNiSi‐Type ALiAu (A = Ca, Sr, Ba, Eu, Yb) Compounds: Alternative Use of “Excess” Electrons

open access: yesChemistry – A European Journal, EarlyView.
Excess electrons distinguish the bonding in ALiAu (A = Yb, Ca, Eu, Sr, Ba), a new series of intermetallic compounds crystallizing in TiNiSi type. According to bonding analysis, these metallic phases are classified as aurides containing polycations with multiatomic bonding between A, Li, and Au . Abstract New TiNiSi‐type compounds ALiAu (A = Ca, Sr, Ba,
Peter Höhn   +8 more
wiley   +1 more source

High‐throughput calculation of large spin Hall conductivity in heavy‐metal‐based antiperovskite compounds

open access: yesMaterials Genome Engineering Advances, EarlyView.
The present work establishes high‐throughput database (more than 4500 structures) of SHC in antiperovskites and screens 295 structurally stable compounds and identifies 24 compounds with intrinsic SHC exceeding 500 (ℏ/e) (Ω⁻1 cm⁻1), which is crucial for designing future electric and spintronic devices.
Xiong Xu   +5 more
wiley   +1 more source

Amplification of light and atoms in a Bose--Einstein condensate [PDF]

open access: yes, 2000
A Bose-Einstein condensate illuminated by a single off-resonant laser beam (``dressed condensate'') shows a high gain for matter waves and light. We have characterized the optical and atom-optical properties of the dressed condensate by injecting light or atoms, illuminating the key role of long-lived matter wave gratings produced by the condensate at ...
arxiv   +1 more source

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