ISBN: 9783639091441

The fields of condensed-matter physics and materialsscience entereda new era with the discovery of high-temperaturesuperconductors more than twodecades ago. However, despite thelarge volu… Más…

The fields of condensed-matter physics and materialsscience entereda new era with the discovery of high-temperaturesuperconductors more than twodecades ago. However, despite thelarge volume of work published on their properties,and despitetheir many uses, there is surprisingly littleagreement in thecondensed matter community regarding one of theirmost fundamentalbehaviors: the normal-superconducting phasetransition. This book describes investigations ofthe superconductingphase transition of YBCO thin films in zero magneticfield. Simplevoltage vs. current curves at temperatures closeto the transition temperature show that thestandard scaling analysisfails at low currents, contrary to what is widelyaccepted -- but that there isevidence for the phase transition at higher currents.At lower currents, there are significant finite-sizeeffects due tothe thickness of the films. The crossover tofrom three-dimensional to two-dimensionalbehavior occurs even in thick films, andobscures the transition in zero field. Thiseffect would also occur in a magnetic field, and mayexplain thewide range of critical exponents found in the literature. Bücher, Hörbücher & Kalender / Bücher / Sachbuch / Naturwissenschaften / Physik / Theoretische Physik, [PU: VDM Verlag Dr. Müller, Saarbrücken]<

2008, ISBN: 9783639091441

The fields of condensed-matter physics and materials science entered a new era with the discovery of high-temperature superconductors more than two decades ago. However, despite the … Más…

The fields of condensed-matter physics and materials science entered a new era with the discovery of high-temperature superconductors more than two decades ago. However, despite the large volume of work published on their properties, and despite their many uses, there is surprisingly little agreement in the condensed matter community regarding one of their most fundamental behaviors: the normal-superconducting phase transition. This book describes investigations of the superconducting phase transition of YBCO thin films in zero magnetic field. Simple voltage vs. current curves at temperatures close to the transition temperature show that the standard scaling analysis fails at low currents, contrary to what is widely accepted -- but that there is evidence for the phase transition at higher currents. At lower currents, there are significant finite-size effects due to the thickness of the films. The crossover to from three-dimensional to two-dimensional behavior occurs even in thick films, and obscures the transition in zero field. This effect would also occur in a magnetic field, and may explain the wide range of critical exponents found in the literature. Buch (fremdspr.) Sullivan Matthew C. Taschenbuch, VDM, 01.10.2008, VDM, 2008<

2008, ISBN: 9783639091441

The fields of condensed-matter physics and materials science entered a new era with the discovery of high-temperature superconductors more than two decades ago. However, despite the … Más…

The fields of condensed-matter physics and materials science entered a new era with the discovery of high-temperature superconductors more than two decades ago. However, despite the large volume of work published on their properties, and despite their many uses, there is surprisingly little agreement in the condensed matter community regarding one of their most fundamental behaviors: the normal-superconducting phase transition. This book describes investigations of the superconducting phase transition of YBCO thin films in zero magnetic field. Simple voltage vs. current curves at temperatures close to the transition temperature show that the standard scaling analysis fails at low currents, contrary to what is widely accepted -- but that there is evidence for the phase transition at higher currents. At lower currents, there are significant finite-size effects due to the thickness of the films. The crossover to from three-dimensional to two-dimensional behavior occurs even in thick films, and obscures the transition in zero field. This effect would also occur in a magnetic field, and may explain the wide range of critical exponents found in the literature. Buch (fremdspr.) Taschenbuch, VDM, 01.10.2008, VDM, 2008<

ISBN: 9783639091441

Paperback, [PU: VDM Verlag Dr. Mueller E.K.], The fields of condensed-matter physics and materials science entered a new era with the discovery of high-temperature superconductors more th… Más…

Paperback, [PU: VDM Verlag Dr. Mueller E.K.], The fields of condensed-matter physics and materials science entered a new era with the discovery of high-temperature superconductors more than two decades ago. However, despite the large volume of work published on their properties, and despite their many uses, there is surprisingly little agreement in the condensed matter community regarding one of their most fundamental behaviors: the normal-superconducting phase transition. This book describes investigations of the superconducting phase transition of YBCO thin films in zero magnetic field. Simple voltage vs. current curves at temperatures close to the transition temperature show that the standard scaling analysis fails at low currents, contrary to what is widely accepted -- but that there is evidence for the phase transition at higher currents. At lower currents, there are significant finite-size effects due to the thickness of the films. The crossover to from three-dimensional to two-dimensional behavior occurs even in thick films, and obscures the transition in zero field. This effect would also occur in a magnetic field, and may explain the wide range of critical exponents found in the literature., Physics<