We present experiments that determine the temperature increase in a type-II superconductor due to Joule heating induced by vortex motion. The effect of Joule heating is detected by comparing the response of the vortex lattice to fixed amplitude current steps of short ~10 ms! and long ~4 s! duration, where the Joule heating is negligible and saturates, respectively. The thermometry is based on t...

In this work the robustness of a simple cellular automaton developed by Bassler and Paczuski[1] to describe the critical state in typeII superconductors is studied. Two different configurations of pinning centers are introduced and a new universality class is found. The numerical values of the critical exponents were calculated following two scaling techniques to ensure the validity of our resu...

A method is proposed to extend the zero-temperature Hall-Klemm microscopic theory of the Knight shift K in an anisotropic and correlated, multi-band metal to calculate K(T) at finite temperatures T both above and into its superconducting state. The transverse part of the magnetic induction B(t) = B0 +B1(t) causes adiabatic changes suitable for treatment with the Keldysh contour formalism and an...

The electromagnetic response of a pinned Abrikosov fluxoid is examined in the framework of the Bogoliubov-de Gennes formalism. The matrix elements and the selection rules for both the single photon (emission absorption) and two photon (Raman scattering) processes are obtained. The results reveal striking asymmetries: light absorption by quasiparticle pair creation or single quasiparticle scatte...

A Dirac fermion in a topological Dirac semimetal is a quadruple-degenerate quasiparticle state with a relativistic linear dispersion. Breaking either time-reversal or inversion symmetry turns this system into a Weyl semimetal that hosts double-degenerate Weyl fermion states with opposite chiralities. These two kinds of quasiparticles, although described by a relativistic Dirac equation, do not ...

Abstract Prozorov and Bud’ko (On the analysis of tin-inside- H 3 S Mössbauer experiment, 2022) recently analyzed nuclear resonant scattering (NRS) experiment that reportedly demonstrated magnetic field exclusion in sulfur hydride under pressure (Science 351, 1303, 2016), concluded is consistent with expected behavior a type II superconductor. Here I point out their shows reported NRS measuremen...

We investigate the crossed Andreev reflections between two graphene leads connected by a narrow superconductor. When the leads are, respectively, of the n and p type, we find that electron elastic cotunneling and local Andreev reflection are both eliminated even in the absence of any valley-isospin or spin polarizations. We further predict oscillations of both diagonal and cross conductances as...

purpose: to evaluate color vision in patients with type ii diabetes mellitus without diabetic retinopathy and compare the results with those of age- and sex- matched normal individuals. methods: this descriptive, comparative study was conducted on 100 diabetic patients without any sign of retinopathy and 100 age- and sex-matched normal subjects. color vision was evaluated using ishihara and far...