The Quest for High Critical Current in Applied High-Temperature Superconductors
نویسندگان
چکیده
منابع مشابه
Kiloampere, Variable-Temperature, Critical-Current Measurements of High-Field Superconductors
We review variable-temperature, transport critical-current (I c) measurements made on commercial superconductors over a range of critical currents from less than 0.1 A to about 1 kA. We have developed and used a number of systems to make these measurements over the last 15 years. Two exemplary variable-temperature systems with coil sample geometries will be described: a probe that is only varia...
متن کاملDestroying Coherence in High-Temperature Superconductors with Current Flow
A. Kaminski, S. Rosenkranz, M. R. Norman, M. Randeria, Z. Z. Li, H. Raffy, and J. C. Campuzano Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA Laboratoire de Physique des Solides, C...
متن کاملMagic doping fractions for high-temperature superconductors.
We report hole-doping dependence of the in-plane resistivity rho(ab) in a cuprate superconductor La(2-x)Sr(x)CuO4, carefully examined using a series of high-quality single crystals. Our detailed measurements find a tendency towards charge ordering at particular rational hole-doping fractions of 1/16, 3/32, 1/8, and 3/16. This observation appears to suggest a specific form of charge order and is...
متن کاملPairing Symmetry of the High Temperature Superconductors
A review of relevant experiments that favour an unconventional pairing symmetry in high temperature cuprates is made. Results of magnitude sensitive techniques are discussed and then tests which probe directly the phase of the order parameter are presented in more detail. Josephson eeect and its relevance to this problem is described. Consensus resulting from compelling arguments for a d x 2 ?y...
متن کاملVortex charges in high-temperature superconductors.
Based on a model Hamiltonian with competing antiferromagnetic (AF) and d-wave superconductivity interactions, the vortex charge is investigated by solving the Bogoliubov-de Gennes equations. We found that the vortex charge is negative when a sufficient strength of AF order is induced inside the vortex core; otherwise, it is positive. By tuning the on-site Coulomb repulsion U or the doping param...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Superconductivity and Novel Magnetism
سال: 2019
ISSN: 1557-1939,1557-1947
DOI: 10.1007/s10948-019-05255-w