Results 101 to 110 of about 63,592 (262)

Giant Magneto‐Optical Effects in Two‐Dimensional Flat‐Band Antiferromagnets

open access: yesAdvanced Science, EarlyView.
RuOCl2${\rm RuOCl}{_2}$, a two‐dimensional antiferromagnet, hosts energy bands with pronounced directional flatness. This study demonstrates that the flat‐band‐induced optical transitions yield strongly anisotropic absorption and a record‐large magneto‐optical Schafer–Hubert effect, alongside exceptional linear dichroism exceeding 50%.
Ping Yang   +7 more
wiley   +1 more source

Hole superconductivity

open access: yesPhysics Letters A, 1989
1 Introduction: Overview of superconductivity 2 Correlated electron models for superconductivity 3 Charge expulsion and alternative London electrodynamics 4 How the Meissner effect works 5 Theory of hole superconductivity versus the conventional ...
openaire   +1 more source

High‐Pressure Modulation of Breathing Kagome Lattice: Cascade of Lifshitz Transitions and Evolution of the Electronic Structure

open access: yesAdvanced Science, EarlyView.
External pressure directly tunes the breathing distortion of the kagome lattice in Fe3Sn2, suppressing it near 15 GPa and reversing it at higher pressures. This structural modulation drives a cascade of Lifshitz transitions, reconstructs the Fermi surface, strengthens electronic correlations and carrier localization, and modifies ultrafast electron ...
Marcos Vinicius Gonçalves‐Faria   +14 more
wiley   +1 more source

Superconducting transformers

open access: yes, 2004
The paper provides an overview of power applications of High Temperature Superconductivity (HTS) with emphasis on superconducting transformers. Properties of available HTS materials are reviewed and modelling aspects briefly introduced.
Sykulski, Jan
core   +1 more source

Superconductivity effect: levitation in magnetic field

open access: yes, 2010
A section of superconducting material is placed above a magnetic track. The superconductor is tapped sideways and travels around the track with virtually no resistance to its motion.
DoITPoMS, University of Cambridge
core  

Multi-Band Superconductivity and the Steep Band/Flat Band Scenario

open access: yes, 2019
The basic features of multi-band superconductivity and its implications are derived. In particular, it is shown that enhancements of the superconducting transition temperature take place due to interband interactions.
Simon, Bianconi, Bussmann-Holder, Keller
core   +1 more source

Superconductivity in new materials /

open access: yes, 2011
The discoveries of new superconducting materials, most of them during the last 30 years, have served very much as the context for further developments in theory which continue to the present.
Fisk, Zachary., Ott, Hans R.
core  

Josephson-coupled superconducting regions embedded at the interfaces of highly oriented pyrolytic graphite

open access: yesNew Journal of Physics, 2013
Transport properties of a few hundreds of nanometers thick (in the graphene plane direction) lamellae of highly oriented pyrolytic graphite (HOPG) have been investigated.
A Ballestar   +3 more
doaj   +1 more source

Dual‐Functional Terahertz Manipulation of EuBa2Cu3O7 Superconductors via Cooper Pair Dynamics

open access: yesAdvanced Science, EarlyView.
We use a spintronic‐metasurface THz emitter to realize chiral THz generation. Using polarization‐tunable THz pulses, we investigate equilibrium and photoinduced THz responses in a 43 nm thick EuBa2Cu3O7 (EBCO) thin film. The EBCO film achieves 46.81 dB EMI shielding and 113% photoinduced THz modulation with 19.0 ps recovery, enabled by Cooper‐pair ...
Zhangshun Li   +10 more
wiley   +1 more source

A review of vortex pinning in REBa2Cu3O7‐x coated conductors

open access: yescMat
REBa2Cu3O7‐x (REBCO) exhibits outstanding qualities such as a high irreversible field (7 T) and strong current‐carrying capacity (77 K, 106 A cm−2), making it ideal for high magnetic field applications such as fusion, accelerators, and nuclear magnetic ...
Tong‐Xin Wang   +6 more
doaj   +1 more source

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