Results 151 to 160 of about 18,734 (309)

Unusual Van der Waals Magnetoresistance in Stacked Ferromagnetic Fe3GeTe2: The Role of Atomically Sharp Interfaces

open access: yesAdvanced Science, EarlyView.
Angular‐dependent magnetoresistance in stacked Fe3GeTe2 reveals high‐order UAMR that defies spin‐current‐based interpretations. Instead, it originates from internal electric fields at atomically sharp interfaces (ASI), in excellent agreement with two‐vector MR theory.
Qian Chen   +9 more
wiley   +1 more source

Modular Symmetry and Fractional Charges in N = 2 Supersymmetric Yang-Mills and the Quantum Hall Effect

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
The parallel rôles of modular symmetry in N = 2 supersymmetric Yang-Mills and in the quantum Hall effect are reviewed. In supersymmetric Yang-Mills theories modular symmetry emerges as a version of Dirac's electric - magnetic duality.
Brian P. Dolan
doaj  

Nonabelions in the fractional quantum hall effect

open access: hybrid, 1991
Gregory Moore, Nicholas Read
openalex   +1 more source

Ultrahigh Seebeck Coefficient and Power Factor in Low‐Temperature Fused Ag2Se Films via Superionic‐Driven Plastic Deformation

open access: yesAdvanced Science, EarlyView.
Driven by superionic‐induced plastic deformation, low‐temperature treatment can not only effectively fuse Ag2Se nanoparticles into a dense film but also enhance thermoelectric performance by maximally preserving effective grain boundaries resulting in intensive energy filtering effect. Notably, excess Ag nanoclusters act as fusing agents, promoting the
Dezhuang Ji   +7 more
wiley   +1 more source

Controlling Twisted Angles in Directly Grown MoS2 Bilayers via Tilt Grain Boundary Engineering

open access: yesAdvanced Science, EarlyView.
In this study, the stacking configurations and the growth mechanism of twisted bilayer (TB) MoS2 are systematically investigated, revealing that the relative rotation angle between the two layers is guided by the tilt grain boundary (GBs) of the bottom layer.
Xiaotian Li   +12 more
wiley   +1 more source

Breakdown of the quantum Hall effect in periodic and aperiodic antidot arrays [PDF]

open access: green, 1997
G. Nachtwei   +5 more
openalex   +1 more source

Chemically‐Disordered Transparent Conductive Perovskites With High Crystalline Fidelity

open access: yesAdvanced Science, EarlyView.
Kinetically arrested, chemically disordered perovskite thin films exhibit exquisite crystalline fidelity, broad IR–UV transparency, and low resistivity, despite incorporating five mismatched 3d–5d cations, including Cr and W. This study unites electronic correlation, cation diversity, valence complexity, and disorder—enabling new transparent conductors
Saeed S. I. Almishal   +18 more
wiley   +1 more source

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