Search for dissertations about: "underdoped"
Showing result 1 - 5 of 7 swedish dissertations containing the word underdoped.
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1. Reshaping the phase diagram of YBa2Cu3O7-δ through strain in ultrathin films and nanowires
Abstract : This thesis aims at adding important pieces to the puzzle of understanding the physics of the High critical Temperature Superconductor (HTS) cuprates, where despite over 30 years of intense research many open questions remain. The HTS cuprates are characterized by an incredibly complex phase diagram with multiple intertwined local orders, such as charge density waves (CDW). READ MORE
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2. Fluctuating superconductivity and pair-density wave order in the cuprate superconductors
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
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3. Photoelectron spectroscopy on strongly correlated systems
Abstract : This work presents photoelectron spectroscopy data on somestrongly correlated systems. The electronic structure of the3dtransition metal oxides NiO and CoO have been studiedwith angle resolved and resonant photoemission. In the lattercase, both NiO and CoO show strong resonance effects at themetal absorption edges. READ MORE
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4. YBCO nanowires to study nanoscale ordering in High-Tc Superconductors
Abstract : We present the realization of YBa2Cu3O7-δ (YBCO) nanowires for both basic physics studies, which could help to elucidate the microscopic mechanisms of High critical Temperature Superconductors (HTS), and for novel applications.The first part of the thesis describes an improved nanopatterning procedure, based on e-beam lithography in combination with an amorphous carbon mask and a very gentle Ar+ ion etching. READ MORE
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5. Resistive studies of vortices and fluctuations in single crystal YBa2Cu3O7-
Abstract : High-temperature superconductors have been intensely studiedsince the discovery, almost 20 years ago. Their layeredstructure, extreme type-II behavior, large anisotropy, andstrong fluctuations have led to a large number of new andinteresting problems. READ MORE