«ybco»
۱۱۴۹ نتیجهBaFz POST:DMPOSHION REACTION PROCESS FOR THICK YBCO FILMS
The basic processes of the so-called BaFz process for the formation of YBaXh07, YBCO, films as well as its advantages over the in situ formation processes are discussed in the previous chapter. The process and the properties of YBCO films by this process were also nicely describe
On-line characterization of YBCO coated conductors using Raman spectroscopy methods.
The use of Raman spectroscopy for on-line monitoring of the production of superconducting YBa2Cu3O6+X (YBCO) thin films on long-length metal tapes coated with textured buffer layers is reported for the first time. A methodology is described for obtaining Raman spectra of YBCO on
Significant reduction of AC losses in YBCO patterned coated conductors with transposed filaments
We report on a first implementation of a design which provides a significant reduction of AC losses in YB2Cu3O7−δ (YBCO) coated conductors (CCs) without mechanical twisting. The conductor is composed of two diffusively bonded silver clad commercial CCs with zigzag patterned filam
Andreev reflection and spin polarization measurement of Co/YBCO junction
We report temperature dependent Andreev reflection measurements of Co/ Y1Ba2Cu3O7−δ (YBCO) heterostructure samples with junction areas of 1 μm diameter. Modelling of the 5-70 K conductivity data according to a modified Blonder-Tinkham-Klapwijk theory yields a spin polarization in
The role of Ag in the pulsed laser growth of YBCO thin films
We have studied systematically the role of silver in improving microstructure and properties of Y1Ba2Cu3O7 YBCO thin films. We have more than doubled the grain size to nearly 1.8 m and reduced processing temperatures by incorporating Ag in the YBCO films, which is accomplished by
Orthorhombic distortions may reconcile all the experimental data on YBCO. V.L.Pokrovsky
Orthorhombic distortions may reconcile all the experimental data on YBCO. Abstract A lot of controversy appeared recently in measurements of different properties of High-T c-superconductor YBCO. A part of data supports d-wave hypothesis whereas other one contradicts it. We sugges
Ordered YBCO sub-micron array structures induced by pulsed femtosecond laser irradiation.
We report on the formation of organized sub-micron YBa(2)Cu(3)O(7) (YBCO) dots induced by irradiating femtosecond laser pulses on YBCO films prepared by pulse laser deposition with fluence in the range of 0.21 approximately 0.53 J/cm(2). The morphology of the YBCO film surface de
Ac Loss in Striped (filamentary) Ybco Coated Conductors Leading to Designs for High Frequencies and Field-sweep Amplitudes
AC losses of YBCO coated conductors are investigated by calculation and experiment for the higher frequency regime. Previous research using YBCO film deposited onto single-crystal substrates demonstrated the effectiveness of ‘striping’ or filamentary subdivision as a technique fo
La2Zr2O7 single buffer layer for YBCO RABiTS coated Conductors
Chemical deposition methods like MOD and MOCVD are promising approaches for coated conductors (CCs) due to their reduced cost and easy scaling. High quality La2Zr2O7 (LZO) buffer layers were prepared by MOD on Ni-5%at.W (NiW) RABiTS and subsequent YBCO layers (450 to 800 nm thick
مشخصه‌یابی عیوب کریستالی مرز دوقلویی در ابررسانای دمابالا YBCO
دوقلویی یکی از مکانیسم‌های اصلی تغییر شکل پلاستیکی در کریستال‌ها است که خواص مربوط به آن از مسائل مهم در علم مواد به شمار می‌رود. یکی از مهم‌ترین ویژگی‌های ریزساختاری مشاهده شده در ابررسانای دمابالای YBa2Cu3O7-y ، (YBCO) دوقلویی است که به سبب استحاله فاز تتراگونال به اورتورمبیک ر