Search for dissertations about: "high-temperature superconductivity"

Showing result 21 - 25 of 38 swedish dissertations containing the words high-temperature superconductivity.

  2. 21. Shuttle Transport of Charge in Normal and Superconducting Nanostructures

    Author : Andreas Isacsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Josephson effect; superconductivity; nanoelectromechanics NEMS ; single electron tunneling; coulomb blockade;

    Abstract : In nanoscale systems, accumulation of charge is associated with large charging energies. If the forces arising due to the Coulomb interaction are comparable to the rigidity of the structures mechanical deformations can couple to the electronic degrees of freedom. READ MORE

  4. 22. Thermodynamic characterization of superconducting and magnetic materials using nanocalorimetry

    Author : Donato Campanini; Andreas Rydh; Christoph Meingast; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nanocalorimetry; Superconductivity; Magnetism; MEMS; Specific heat; Thermodynamics; Physics; fysik;

    Abstract : Measurement of specific heat is a powerful technique for the investigation of novel materials. Superconducting and magnetic systems, in particular, can be thoroughly characterized by studying their electronic contribution to the specific heat. READ MORE

  5. 23. Photoelectron Spectroscopy of Cuprates and Manganites

    Author : Mats Leandersson; Lunds universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; HTSC; photoelectron spectroscopy; angle resolved photoemission; magnetoresistance; superconductivity; magnetic resonance; relaxation; spectroscopy; Kondenserade materiens egenskaper:elektronstruktur; magnetiska och optiska ; egenskaper elektriska; supraledare; magnetisk resonans; Physics; spektroskopi; resonant photoemission; Condensed matter:electronic structure; CMR; electrical; supraconductors; magnetic and optical properties; Fysik; Fysicumarkivet A:2000; Leandersson;

    Abstract : Abstract In this thesis, the high temperature superconductors (HTSC) La2CuO4+x and Bi2Sr2CaCu2O8+d and the colossal magnetoresistive (CMR) La1-xSrxMnO3 have been studied by photoelectron spectroscopy. Techniques such as angular resolved photoemission (ARPES), resonant photoemission spectroscopy (RESPES) and x-ray absorption spectroscopy have been applied, using synchrotron radiation. READ MORE

  6. 24. Fluctuating superconductivity and pair-density wave order in the cuprate superconductors

    Author : Jonatan Wårdh; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cuprates; fluctuating superconductivity; pair-density wave; Ginzburg-Landau theory; vestigial order; nematicity; paraconductivity;

    Abstract : High-temperature superconductors are some of nature’s most enigmatic materials. Besides carrying a supercurrent, these materials manifest a range of electronic and structural orders. READ MORE

  7. 25. Modeling mesoscopic unconventional superconductors

    Author : Patric Holmvall; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phase transitions; Andreev bound states; quasiclassical theory; mesoscopic thin-films; spontaneous symmetry breaking; time-reversal symmetry; Unconventional superconductivity; translational symmetry;

    Abstract : High-temperature superconducting materials are often experimentally realized as thin films that can be patterned into devices operating in the mesoscopic regime. On this length scale, various finite-size and surface effects heavily influence the nature of the superconducting state, and can induce new ground states with spontaneously broken symmetries. READ MORE