Vortex channeling and the voltage–current characteristics of YBa2Cu3O7 low-angle grain boundaries
نویسندگان
چکیده
منابع مشابه
From the Cover: Nanoscale waviness of low-angle grain boundaries
www.pnas.org/cgi/content/full/101/52/17936#otherarticles This article has been cited by other articles: E-mail Alerts . click here at the top right corner of the article or Receive free email alerts when new articles cite this article sign up in the box Rights & Permissions www.pnas.org/misc/rightperm.shtml To reproduce this article in part (figures, tables) or in entirety, see: Reprints www.pn...
متن کاملElectromagnetic, atomic structure and chemistry changes induced by Ca-doping of low-angle YBa2Cu3O7-delta grain boundaries.
Practical high-temperature superconductors must be textured to minimize the reduction of the critical current density J(gb) at misoriented grain boundaries. Partial substitution of Ca for Y in YBa(2)Cu(3)O(7-delta) has shown significant improvement in J(gb) but the mechanisms are still not well understood. Here we report atomic-scale, structural and analytical electron microscopy combined with ...
متن کاملTransition between Low and High Angle Grain Boundaries
Institut für Metallkunde und Metallphysik, RWTH Aachen, 52056 Aachen, Germany Carnegie Mellon University, Pittsburgh PA 15213, USA Abstract The migration of planar, symmetric tilt grain boundaries with different tilt axes was investigated. The driving force for the grain boundary migration was due to an external mechanical stress field. Low as well as high angle grain boundaries can move under ...
متن کاملStress-driven migration of simple low-angle mixed grain boundaries
We investigated the stress-induced migration of a class of simple low-angle mixed grain boundaries (LAMGBs) using a combination of discrete dislocation dynamics simulations and analytical arguments. The migration of LAMGBs under an externally applied stress can occur by dislocation glide, and was observed to be coupled to the motion parallel to the boundary plane, i.e. tangential motion. Both t...
متن کاملObservation of Splintered Josephson Vortices at Grain Boundaries in YBa2Cu3O7
067004-1 We have directly observed well-separated Josephson vortex splinters with unquantized magnetic flux at asymmetric 45 grain boundaries in YBa2Cu3O7 films by imaging magnetic flux with scanning SQUID microscopy. The existence of these splinter vortices has been predicted and is well described by a model based on dx2 y2 pairing symmetry and facetting of the grain boundary on a length scale...
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: Applied Physics Letters
سال: 2001
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.1351529