Flux Pinning in Superconductors [2]-Pinning Energy Loss-
نویسندگان
چکیده
منابع مشابه
Magnetic flux pinning in superconductors with hyperbolic-tessellation arrays of pinning sites
We study magnetic flux interacting with arrays of pinning sites (APSs) placed on vertices of hyperbolic tessellations (HTs). We show that, due to the gradient in the density of pinning sites, HT APSs are capable of trapping vortices for a broad range of applied magnetic fluxes. Thus, the penetration of magnetic field in HT APSs is essentially different from the usual scenario predicted by the B...
متن کاملStudy of Magnetic Flux Pinning in Nb-Ti Superconductors Using Artificial Pinning Center Technology
Multifilamentary Nb-Ti superconducting wires with heterogenous flux pinning nano-structures have been fabricated using artificial pinning center (APC) technology. Pinning centers were introduced into Nb-Ti filaments, consisting of Cu-Ni, Nb and Nb+Ti rods with the triangular arrangement and the volume fraction of 17 %. After final hot extrusions, the APC wires were drawn down over a high strain...
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 کاملFlux pinning in Al doped TSMG YBCO bulk superconductors
The superconducting properties of Y1Ba2(Cu1−x Alx)3O7/Y2BaCuO5 bulk superconductors with different Al contents were studied (x = 0.0025–0.05). A peak effect was observed at intermediate magnetic fields over a wide temperature range below Tc. The influence of standard oxygenation (SO) at 400 ◦C and high pressure oxygenation (HPO) at 750 ◦C on the critical current density Jc was investigated. We ...
متن کاملFlux Pinning and Forced
We propose controlled splay of artiicial columnar defects in cuprate super-conductors as a strategy to enhance transport properties in a eld compared to parallel columns. The theory predicts a new \splayed glass" phase characterized by a reduced ux creep, an entangled ground state, and an astronomically slow response to an applied transverse eld.
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: TEION KOGAKU (Journal of the Cryogenic Society of Japan)
سال: 2008
ISSN: 0389-2441,1880-0408
DOI: 10.2221/jcsj.43.382