Specimen Preparation and Atom Probe Field Ion Microscopy of BSCCO-2212 Superconductors
نویسندگان
چکیده
منابع مشابه
Nanoscale Microstructural Analyses by Atom Probe Field Ion Microscopy
Recent progress in atom probe field ion microscopy (APFIM) and its applications to nanoscale microstructural studies of metallic materials are reviewed. By employing a three dimensional atom probe (3DAP), it is possible to map out elemental distributions in the real space with almost an atomic resolution, and chemical analysis of interfaces and nanoparticles can be made with improved accuracy i...
متن کاملSpecimen preparation for correlating transmission electron microscopy and atom probe tomography of mesoscale features.
Atom-probe tomography (APT) provides atomic-scale spatial and compositional resolution that is ideally suited for the analysis of grain boundaries. The small sample volume analyzed in APT presents, however, a challenge for capturing mesoscale features, such as grain boundaries. A new site-specific method utilizing transmission electron microscopy (TEM) for the precise selection and isolation of...
متن کاملA Focused Ion Beam Specimen Preparation Method to Minimize Gallium Ion Concentration in Copper Atom-Probe Tomography Specimen Tips
Atom-probe tomography (APT) is a quantitative technique that permits three-dimensional (3-D) spectroscopic characterization of interfaces and other nanometer-scale features within a material. Specimens for atom-probe tomography (APT) analysis of semiconductor devices and nanostructured materials are typically fabricated employing a focused ion beam (FIB) instrument [1 3] or a dual-beam FIB inst...
متن کاملQuasiparticle Tunnelling and Field-Dependent Critical Current in 2212- BSCCO
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 کاملIntrinsic c - Axis Transport in 2212 - BSCCO
We describe two experimental approaches to circumvent the problem of self-heating in IV measurements on small mesa samples of 2212-BSCCO. Simultaneous dc and temperature measurements have been performed, allowing corrections for heating to be made. Short pulse measurements have also been made, where the IV characteristics and the mesa temperature can be measured on a µs timescale enabling intri...
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: Le Journal de Physique IV
سال: 1996
ISSN: 1155-4339
DOI: 10.1051/jp4:1996544