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Thermoelectricity describes phenomena that allow us to convert heat into electricity and vice versa. The practical implications of this conversion are obvious. However, research on thermoelectric effects also leads to a deep understanding…

Popular Physics · Physics 2020-04-01 David Sanchez , Rafael Sanchez

In an unconventional superconductor, the interplay of scattering off impurities and Andreev processes may lead to different scattering times for electronlike and holelike quasiparticles. Such electron-hole asymmetry appears when the…

Superconductivity · Physics 2022-03-15 Kevin Marc Seja , Louhane Jacob , Tomas Löfwander

The problem of the thermal and magnetic destruction of the critical state in composite superconductors is investigated. The initial distributions of temperature and electromagnetic field are assumed to be essentially inhomogeneous. The…

Superconductivity · Physics 2007-05-23 Nizam A. Taylanov

The physical pictures of the electron pairing structure and pairing mechanisms in superconductors are reviewed. An initial idea for a new physical picture of the origin and nature of the pairing is proposed. The idea is based on the…

Superconductivity · Physics 2024-02-19 Zuhair M. Hejazi , Iskra B. Hejazi

We consider a mesoscopic four-terminal superconductor/normal metal (S/N) structure in the presence of a temperature gradient along the N wire. A thermoemf arises in this system even in the absence of the thermoelectric quasiparticle current…

Superconductivity · Physics 2009-11-11 A. F. Volkov , V. V. Pavlovskii

An integrating theoretical scenario of superconductivity and superfluidity has been built. It reduces to the special BCS superconductivity mechanism for conventional superconductor and to a new theory for high transition temperature…

Superconductivity · Physics 2007-05-23 Jie Han

A broad review of theoretical research work involving different types of microscopic mechanism in various classes of superconductors, carried out in our research group over a decade or so, is presented. These mechanisms include both…

Superconductivity · Physics 2022-04-27 Ranjan Chaudhury , Koushik Mandal

The explanation of the nature of superconducting gap in high temperature superconductors (HTSC) is a fundamental task which solution can lead to the understanding of superconducting mechanism. However, it has not been fully solved yet. From…

Superconductivity · Physics 2019-09-13 Victor Lakhno

Superconductivity is characterized by a nonvanishing superconducting pair amplitude. It has a definite symmetry in spin, momentum and frequency (time). While the spin and momentum symmetry have been probed experimentally for different…

Mesoscale and Nanoscale Physics · Physics 2018-10-31 Sun-Yong Hwang , Pablo Burset , Björn Sothmann

We propose an experiment-based strategy for finding new high transition temperature superconductors that is based on the well-established spin fluctuation magnetic gateway to superconductivity in which the attractive quasiparticle…

Superconductivity · Physics 2013-11-19 David Pines

The nowadays notable development of all the modern technology, fundamental for the progress and well being of world society, imposes a great deal of stress in the realm of basic Physics, more precisely on Thermo-Mechanical Statistics. In…

Materials Science · Physics 2021-10-12 Clóves Gonçalves Rodrigues , Áurea Rosas Vasconcellos , Roberto Luzzi

Superfluids and superconductors are ordinary matter that show a very surprising behavior at low temperatures. As their temperature is reduced, materials of both kinds can abruptly fall into a state in which they will support a persistent,…

History and Philosophy of Physics · Physics 2015-06-15 Leo P. Kadanoff

We propose a new mixed-mechanism for superconductors, which addresses not only low- but also high-, and even possible room-temperature superconductivity. We use this mixed-mechanism to explain superconductivity in different temperature…

Superconductivity · Physics 2013-11-05 D. H. Lin , D. J. Cui , B. Li , L. F. Liu , X. Q. Wang

For more than a century, physics has known of a puzzling conflict between the T-asymmetry of thermodynamic phenomena and the T-symmetry of the underlying microphysics on which these phenomena depend. This paper provides a guide to the…

Classical Physics · Physics 2007-05-23 Huw Price

The goal of this research is the study of the thermomagnetic consequences in isotropic type-II superconductors, subjected to multi-component magnetic fields $\mathbf{H}_a = H_{ay}\hat{y}+H_{az}\hat{z}$, because the instability field…

Superconductivity · Physics 2018-09-24 O. A. Hernández-Flores , J. Gutiérrez-Gutiérrez , C. Romero-Salazar

Several surprises are beginning to emerge from studies of nanostructures: whereas increased resistance with decreased thickness has been expected, the exact opposite in several instances has been found. It is beginning to seem we are in the…

Other Condensed Matter · Physics 2010-08-11 Ron Bourgoin

Almost constant voltage plateaus on the V(I) curves of long quasi-one-dimensional superconducting aluminum wires placed in magnetic field at temperatures T slightly below the critical superconducting temperature Tc were found which were…

Superconductivity · Physics 2019-08-13 V. I. Kuznetsov , A. A. Firsov

The Casimir effect and superconductivity are foundational quantum phenomena whose interplay is an open question in physics, with significant implications for electron physics, quantum gravity, and high-temperature superconductivity.…

One of the most important and still unresolved problems in the field of dispersion forces, is that of determining the influence of temperature on the Casimir force between two metallic plates. While alternative theoretical approaches lead…

Quantum Physics · Physics 2009-02-10 Giuseppe Bimonte

In this study, a possible non-quasiparticle glue for superconductivity of both conventional and unconventional superconductors is explored in a pure electron picture. It is shown clearly that the moving electrons due to the electromagnetic…

Superconductivity · Physics 2009-09-04 X. Q. Huang