Critical properties of superconducting Ba1−xKxFe2As2
نویسندگان
چکیده
منابع مشابه
control of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولMicrowave properties of superconducting MgB2
Measurements of 10 GHz microwave surface resistance, Rs , of dense MgB2 wire and pellet are reported. Significant improvements are observed in the wire with reduction of porosity. The data lie substantially above the theoretical estimates for a pure Bardeen–Cooper–Schrieffer s-wave superconductor. However, the Rs ~20 K! of the wire is an order of magnitude lower than that of polycrystal YBa2Cu3...
متن کاملCritical Magnetic Field Determination of Superconducting Materials*
Abstract Using a 11.4 GHz, 50-MW, <1 μs, pulsed power source and a TE013-like mode copper cavity, we have been measuring critical magnetic fields of superconductors for accelerator cavity applications. This device can eliminate both thermal and field emission effects due to a short pulse and no electric field at the sample surface. A model of the system is presented in this paper along with a d...
متن کاملMachine learning modeling of superconducting critical temperature
Valentin Stanev, 2 Corey Oses, 4 A. Gilad Kusne, 5 Efrain Rodriguez, 2 Johnpierre Paglione, 2 Stefano Curtarolo, 4, 8 and Ichiro Takeuchi 2 Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742-4111, USA Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742, USA Department of Mechanical Engineering and Mater...
متن کاملCritical transport currents of superconducting microarrays
2014 From the nonlinear Ginzburg-Landau equations exact maximum supercurrent densities of injected transport currents were calculated for a square microarray as a function of lattice parameter. In the limit that the lattice parameter becomes small in comparison to the temperature dependent coherence length, values of the maximum current were also obtained for honeycomb and rectangular arrays. T...
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: Physica C: Superconductivity
سال: 2010
ISSN: 0921-4534
DOI: 10.1016/j.physc.2009.09.004