Flux-flow resistivity of three high-temperature superconductors
نویسندگان
چکیده
منابع مشابه
Pressure Dependence of Flux Dynamics in High Temperature Superconductors
One of the important problems of high-temperature superconductivity is to understand and ultimately to control uxoid motion. We will describe a new technique for measuring the pressure dependence of Tc in a diamond anvil cell by the third harmonic of the ac susceptibility. It requires no background subtraction and allows the use of gasket materials made from hardened steels. More signi cantly, ...
متن کاملFlux Pinning Characteristics and Irreversibility Line in High Temperature Superconductors
The flux pinning properties in high temperature superconductors are strongly influenced by thermally activated flux motion. The scaling relation of the pinning force density and the irreversibility line in various high temperature superconductors are numerically analyzed in terms of the flux creep model. The effect of two factors, i.e., the flux pinning strength and the dimensionality of the ma...
متن کاملThe Dependence of Resistivity on Temperature for Thin Superconductors
Measurements made on superconducting very thin layers are analysed by modelization using 2D FEM. The electric field distribution is established and can be seen the differences of this distribution during the superconductive transition. The calculation of the temperature variation of the resistivity is made based on measured temperature variation of the resistance, taking into account also the e...
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 کاملFlux flow resistivity in the two-gap superconductivity
We investigate flux flow state in the two-gap superconductor in which two s-wave gaps with different amplitudes exist on two separated Fermi surfaces. The flux flow resistivity is obtained based on the Bardeen-Stephen relation and the result agrees well with anomalous field dependence of the flow resistivity recently observed in the two-gap superconductor MgB2. Some typical properties of the vo...
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: IEEE Transactions on Appiled Superconductivity
سال: 1997
ISSN: 1051-8223
DOI: 10.1109/77.621011