Onset of bulk pinning in BSCCO single crystals

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Nonlinear Microwave Switching Response of Bscco Single Crystals

Measurements of the surface impedance, Zs, in Bi 2 Sr 2 Ca 1 Cu 2 O 8+ single crystal with microwave currents owing along the ^ c axis show clear evidence of a step-like nonlinearity. The surface resistance switches between apparently quantized levels for microwave eld strength changes of less than 1 mG. This non-linear response can arise from the presence of intrinsic Josephson junctions along...

متن کامل

Intrinsic C-Axis Tunnelling in BSCCO Crystals

Intrinsic c-axis tunnelling in the superconducting state has been measured in zero and finite fields in small mesa structures fabricated on the surface of 2212-BSCCO single crystals. The temperature dependence of the zero-field critical current and quasi-particle conductance is related to microscopic d-wave models in the presence of impurity scattering. The strong field dependence of the c-axis...

متن کامل

Interface instability in the bulk processing of 2223 BSCCO powders

Interface instability (or s̀ausaging’) has been a major problem in the oxide powder-in-tube tape-rolling process. The fast Fourier transform of core instabilities are ® rst performed to study the rolled tapes and to obtain quantitative information on the wavelengths and magnitudes of the nonuniform pro® les. The existing experimental observations are also re-examined and summarized. Treating thi...

متن کامل

Study of flux pinning mechanism under hydrostatic pressure in optimally doped (Ba,K)Fe2As2 single crystals

Strong pinning depends on the pinning force strength and number density of effective defects. Using the hydrostatic pressure method, we demonstrate here that hydrostatic pressure of 1.2 GPa can significantly enhance flux pinning or the critical current density (Jc) of optimally doped Ba0.6K0.4Fe2As2 crystals by a factor of up to 5 in both low and high fields, which is generally rare with other ...

متن کامل

Intrinsic pinning on structural domains in underdoped single crystals of Ba(Fe1−xCox)2As2

Critical current density was studied in single crystals of Ba Fe1−xCox 2As2 for the values of x spanning the entire doping phase diagram. A noticeable enhancement was found for slightly underdoped crystals with the peak at x=0.058. Using a combination of polarized-light imaging, x-ray diffraction and magnetic measurements we associate this behavior with the intrinsic pinning on structural domai...

متن کامل

ذخیره 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: Journal of Low Temperature Physics

سال: 1996

ISSN: 0022-2291,1573-7357

DOI: 10.1007/bf00768521