Search for dissertations about: "YBCO"

Showing result 1 - 5 of 38 swedish dissertations containing the word YBCO.

  2. 1. Unconventional Properties of YBCO Thin Films and GB Josephson Devices for Novel Applications

    Author : Jesper Johansson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; London penetration depth; Coulomb blockade; c-axis transport; YBCO nanowire; SQUID dynamics; unconventional current-phase relation; high-temperature superconductivity; grain-boundary; Single Electron Transistor; intrinsic inductance; tilt-tilt Josephson junctions; YBCO; current injection SQUIDs; nano-lithography; Josephson Junctions;

    Abstract : .... READ MORE

  4. 2. Noise and electrical properties of YBCO nanostructures

    Author : Edoardo Trabaldo; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; YBCO; noise; HTS; nanowire.; SQUID;

    Abstract : This thesis work deals with the investigation of noise properties in cuprate High critical Temperature Superconductor (HTS) YBCO nanoscale devices. Here the aim is to get a better understanding of nanoscale fluctuations in the normal state of HTS from which superconductivity evolves. READ MORE

  5. 3. Resistivity and the solid-to-liquid transition in high-temperature superconductors

    Author : Beatriz Espinosa Arronte; Magnus Andersson; Charles Simon; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; high-temperature superconductors; vortex dynamics; vortex solid-to-liquid transition; critical scaling; glass transition; Bose glass; heavy-ion irradiation; YBCO; Tl2Ba2CaCu2O8 d; oxygen deficiency.; Condensed matter physics; Kondenserade materiens fysik;

    Abstract : In high-temperature superconductors a large region of the magnetic phase diagram is occupied by a vortex phase that displays a number of exciting phenomena. At low temperatures, vortices form a truly superconducting solid phase which at high temperatures turns into a dissipative vortex liquid. READ MORE

  6. 4. On the Zero and Low Field Vortex Dynamics : An Experimental Study of Type-II Superconductors

    Author : Örjan Festin; Peter Svedlindh; Piero Martinoli; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; high temperature superconductors; thermal fluctuations; YBCO; MgB2; anisotropic superconductors; vortex dynamics; Kosterlitz-Thouless transition; current voltage characteristics; complex conductivity; Flux noise; Teknisk fysik; Engineering physics; Teknisk fysik;

    Abstract : Dynamic properties of type-II superconductors have been experimentally studied in zero and low magnetic fields using SQUID magnetometry and I–V measurements.In zero magnetic field close to the critical temperature, the physical properties of type-II superconductors are dominated by spontaneously created vortices. READ MORE

  7. 5. Approaching the depairing critical current in superconducting YBa2Cu3O7−x nanowires

    Author : Shahid Nawaz; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; YBCO; Superconductivity; HTS; Nanowires; NanoSQUIDs;

    Abstract : The microscopic origin of High critical Temperature Superconductivity isstill an open issue in condensed matter physics. In these complex oxideselectrons self-organize in ways qualitatively different from those of conventionalmetals and insulators. READ MORE