Enhancement of the Critical Current Density ofYBa2Cu3OxSuperconductors under Hydrostatic Pressure
نویسندگان
چکیده
منابع مشابه
Enhancement of the critical current density of YBa2Cu3Ox superconductors under hydrostatic pressure.
The dependence of the critical current density Jc on hydrostatic pressure to 0.6 GPa is determined for a single 25 degrees [001]-tilt grain boundary in a bicrystalline ring of nearly optimally doped melt-textured YBa2Cu3Ox. Jc is found to increase rapidly under pressure at +20%/GPa. A new diagnostic method is introduced (pressure-induced Jc relaxation) which reveals a sizable concentration of v...
متن کاملGiant enhancement in critical current density, up to a hundredfold, in superconducting NaFe0.97Co0.03 As single crystals under hydrostatic pressure
Tremendous efforts towards improvement in the critical current density "Jc" of iron based superconductors (FeSCs), especially at relatively low temperatures and magnetic fields, have been made so far through different methods, resulting in real progress. Jc at high temperatures in high fields still needs to be further improved, however, in order to meet the requirements of practical application...
متن کاملPressure-induced enhancement of the critical current density in superconducting YBa2Cu3Ox bicrystalline rings
The dependence of the critical current density Jc T on hydrostatic He-gas pressure to 0.6 GPa is determined for nearly optimally doped and strongly underdoped melt-textured YBa2Cu3Ox bicrystalline rings containing single 001 -tilt grain boundaries GBs with mismatch angles from 0° to 31°. For all samples with 0°, Jc is found to increase rapidly under pressure, the rate of increase lying predomin...
متن کاملConformation of p-terphenyl under hydrostatic pressure.
The conformation of p-terphenyl (C18H14) and deuterated p-terphenyl (C18D14) has been investigated, using high-pressure infrared spectroscopy at liquid-helium temperatures. First-principles calculations, together with the experimental results, were performed to determine the structure of p-terphenyl in the twisted conformation. At low temperatures and pressures, p-terphenyl belongs to the C2 po...
متن کاملInfrared spectroscopy of biphenyl under hydrostatic pressure
Changes in the conformations of conjugated molecules affect the optical and electronic properties significantly. Hydrostatic pressure has been used to probe the conformations of biphenyl (C12H10) and deuterated biphenyl (C12D10) at liquid-helium temperatures. Infrared ~IR! spectra of these materials have been taken up to a pressure of 2 GPa. A disappearance of certain IR absorption peaks has be...
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: Physical Review Letters
سال: 2006
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.96.077001