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Superconductors – metals in which electricity flows without resistance – hold promise as the defining material of the near future, according to physicist Brad Ramshaw, and are already used in medical ...
Wakanda, the mythical setting for Marvels’ superhero film “Black Panther,” is home to some not-so-mythical technology. An indestructible cape might not yet be possible, but Wakanda’s levitating high-s...
Systematic construction of tight-binding Hamiltonians for Topological Insulators and Superconductors
Systematic construction tight-binding Hamiltonians Topological Insulators Superconductors
2016/1/22
A remarkable discovery in recent years is that there exist various kinds of topological insulators and superconductors characterized by a periodic table according to the system symmetry and dimensiona...
Spin bath-mediated decoherence in superconductors
Squid tunnel paramagnetic nuclear spin electronic excited state isotope purification
2014/12/22
We consider a SQUID tunneling between 2 nearly degenerate flux states. Decoherence caused by paramagnetic and nuclear spins in the low-T limit is shown to be much stronger than that from electronic ex...
Magnetic Field Delocalization and Flux Inversion in Fractional Vortices in Two-Component Superconductors
One-component Abrikosov vortex superconductors vortex vortex
2014/12/19
We demonstrate that, in contrast with the single-component Abrikosov vortex, in two-component superconductors vortex solutions with an exponentially screened magnetic field exist only in exceptional c...
Non-Meissner electrodynamics and knotted solitons in two-component superconductors
Electrodynamics superconductor solitary wave and numerical processing
2014/12/19
I consider electrodynamics and the problem of knotted solitons in two-component superconductors. Possible existence of knotted solitons in multicomponent superconductors was predicted several years ag...
Type-1.5 Superconducting State from an Intrinsic Proximity Effect in Two-Band Superconductors,
Superconducting vortex multiband superconductors leading to a qualitative change attractive and reaction of low magnetic field eddy
2014/12/18
We show that in multiband superconductors, even an extremely small interband proximity effect can lead to a qualitative change in the interaction potential between superconducting vortices by producin...
Unusual Electronic State Found in New Class of Unconventional Superconductors（图）
Unusual Electronic State Unconventional Superconductors
2014/12/30
UPTON, NY—A team of scientists from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, Columbia Engineering, Columbia Physics and Kyoto University has discovered an unusual form of ...
Titania-based material holds promise as new insulator for superconductors（图）
superconductors new insulator material
2014/9/12
Research from North Carolina State University shows that a type of modified titania, or titanium dioxide, holds promise as an electrical insulator for superconducting magnets, allowing heat to dissipa...
Transition Temperatures of Superconductors estimated from Periodic Table Properties
estimating Tc superconductivity by design MSCD combinatorial-computational search for superconductors predicting superconductivity
2012/4/19
Predicting the transition temperature, Tc, of a superconductor from Periodic Table normal state properties is regarded as one of the grand challenges of superconductivity. By studying the correlations...
Vortices and chirality in multi-band superconductors
Vortices chirality multi-band superconductors
2012/2/27
We investigate several important properties of multi-band superconductors. They are time-reversal symmetry breaking, chirality and fractional quantum flux vortices in three-band superconductors. The B...
Effect of Impurities on the Superheating field of Type II superconductors
Impurities the Superheating field Type II superconductors
2012/2/27
We consider the effect of nonmagnetic and magnetic impurities on the superheating field $H_s$ in a type-II superconductor. We solved the Eilenberger equations, which take into account the nonlinear pa...
Tc is insensitive to magnetic interactions in high-Tc superconductors
Tc insensitive magnetic interactions high-Tc superconductors
2012/2/27
A quarter of a century after their discovery the mechanism that pairs carriers in the cuprate high-Tc superconductors (HTS) still remains uncertain. Despite this the general consensus is that it is pr...
Quantum-fluctuation effects in transport properties of superconductors above the paramagnetic limit
Quantum-fluctuation effects transport properties superconductors the paramagnetic limit
2012/2/27
We study the transport in ultrathin disordered film near the quantum critical point induced by the Zeeman field. We calculate corrections to the normal state conductivity due to quantum pairing fluctu...
Limitations on the Ginzburg criterion for dirty superconductors
dirty superconductors Ginzburg criterion superconducting fluctuations specific heat
2012/2/27
The contributions of superconducting fluctuations to the specific heat of dirty superconductors are calculated, including quantum and classical corrections to the `usual' leading Gaussian divergence. ...