Enhancing the Superconducting Transition Temperature ofBaSi2by Structural Tuning
نویسندگان
چکیده
منابع مشابه
Enhancing the superconducting temperature of MgB2 by SWCNT dilution
We report, for the first time, an increase in the superconducting critical temperature, TC of commercial ‘‘dirty’’ MgB2 by a nonsubstitutional hole-doping of the MgB2 structure using minute, single-wall carbon nanotube (SWCNT) inclusions. We varied the SWCNTs concentration from 0.05 wt% to 5 wt% and investigated the temperature-dependent resistivity from 10 K to 300 K. We used micro-Raman spect...
متن کاملThicI~nessdependence of the superconducting transition temperature of YBCO
We have performed detailed structuraland superconducting studies of YBCO single layers, YBCO/PrBCO/YBCO tn-layers, and YBCØ/PrBCO superlattices.The results for single layers indicate that a nominally one unit cell thick YBCO film sandwiched between ~rBCO layers is not superconducting. However, a superlattice with nominally one unit cell thick YBCO layers has a measurabte superconducting tempera...
متن کاملVortex avalanches at one thousandth the superconducting transition temperature.
We study the nonequilibrium dynamics of vortex motion at millikelvin temperatures in untwinned single crystals of YBa2Cu3O72d. Above threshold fields of many tesla, flux jumps appear in the magnetic hysteresis B(H). These jumps correspond to a change of 750 vortices, on average, under our micrometer-sized Bi Hall probes. Not only are the threshold fields large, but they, and the characteristics...
متن کاملZero-Temperature Superconducting Transition in Frustrated Josephson-Junction Arrays
The critical behavior of zero-temperature superconducting transitions which can occur in disordered two-dimensional Josephson-junction arrays are investigated by Monte Carlo calculation of ground-state excitation energies and dynamical simulation of the current-voltage characteristics at nonzero temperatures. Two models of arrays in an applied magnetic eld are considered: random dilution of jun...
متن کاملIntercalant-independent transition temperature in superconducting black phosphorus
Research on black phosphorus has been experiencing a renaissance over the last years, after the demonstration that few-layer crystals exhibit high carrier mobility and a thickness-dependent bandgap. Black phosphorus is also known to be a superconductor under high pressure exceeding 10 GPa. The superconductivity is due to a structural transformation into another allotrope and accompanied by a se...
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: 2011
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.106.087002