Photoemission Studies of High-Temperature Superconductors PDF Download
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Author: David W. Lynch
Publisher: Cambridge University Press
ISBN: 0521551897
Category : Science
Languages : en
Pages : 446
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Book Description
This book describes important topics in high-temperature superconductivity; for graduate students and researchers.
Author: David W. Lynch
Publisher: Cambridge University Press
ISBN: 0521551897
Category : Science
Languages : en
Pages : 446
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Book Description
This book describes important topics in high-temperature superconductivity; for graduate students and researchers.
Author: Daniel S. Dessau
Publisher:
ISBN:
Category :
Languages : en
Pages : 450
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Our research has involved using angle-resolved photoemission spectroscopy (ARPES) as a nano-scale probe of the electronic structure of surfaces and interfaces of high-temperature superconductors. Photoemission has provided unique and valuable information because of its surface sensitivity, excellent energy resolution, and ability to detect core-level chemical shifts. The information has strong implications for a fundamental understanding of the electronic structure of the cuprates as well as the construction of practical devices such as Josephson junctions. We will focus on: (1) description of custom-designed thin film samples of high temperature superconductors (HTSC) and the development of methods to study them with ARPES, (2) electronic structure measurements using ARPES, including the measurement of energy gaps, (3) the implications for characteristics of devices using HTSC, and (4) proximity effect searches.
Author: Wentao Zhang
Publisher: Springer Science & Business Media
ISBN: 364232472X
Category : Technology & Engineering
Languages : en
Pages : 147
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Book Description
This book mainly focuses on the study of the high-temperature superconductor Bi2Sr2CaCu2O8 by vacuum, ultra-violet, laser-based, angle-resolved photoemission spectroscopy (ARPES). A new form of electron coupling has been identified in Bi2212, which occurs in the superconducting state. For the first time, the Bogoliubov quasiparticle dispersion with a clear band back-bending has been observed with two peaks in the momentum distribution curve in the superconducting state at a low temperature. Readers will find useful information about the technique of angle-resolved photoemission and the study of high-temperature superconductors using this technique. Dr. Wentao Zhang received his PhD from the Institute of Physics at the Chinese Academy of Sciences.
Author: Junfeng He
Publisher: Springer
ISBN: 3662527324
Category : Technology & Engineering
Languages : en
Pages : 137
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Book Description
This book mainly focuses on the study of the high-temperature superconductor Bi2Sr2CaCu2O8+δ (Bi2212) and single-layer FeSe film grown on SrTiO3 (STO) substrate by means of angle-resolved photoemission spectroscopy (ARPES). It provides the first electronic evidence for the origin of the anomalous high-temperature superconductivity in single-layer FeSe grown on SrTiO3 substrate. Two coexisted sharp-mode couplings have been identified in superconducting Bi2212. The first ARPES study on single-layer FeSe/STO films has provided key insights into the electronic origin of superconductivity in this system. A phase diagram and electronic indication of high Tc and insulator to superconductor crossover have been established in the single-layer FeSe/STO films. Readers will find essential information on the techniques used and interesting physical phenomena observed by ARPES.
Author: P. A. P. Lindberg
Publisher:
ISBN:
Category :
Languages : en
Pages : 137
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Author: Zhi-Xun Shen
Publisher:
ISBN:
Category :
Languages : en
Pages : 464
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Author: Francisco Restrepo
Publisher: Springer Nature
ISBN: 3031109791
Category : Technology & Engineering
Languages : en
Pages : 113
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Book Description
This thesis makes significant advances towards an understanding of superconductivity in the cuprate family of unconventional, high-temperature superconductors. Even though the high-temperature superconductors were discovered over 35 years ago, there is not yet a general consensus on an acceptable theory of superconductivity in these materials. One of the early proposals suggested that collective magnetic excitations of the conduction electrons could lead them to form pairs, which in turn condense to form the superconducting state at a critical temperature Tc. Quantitative calculations of Tc using experimental data were, however, not available to verify the applicability of this magnetic mechanism. In this thesis, the author constructed an angle-resolved photoemission apparatus that could provide sufficiently accurate data of the electronic excitation spectra of samples in the normal state, data which was furthermore unusually devoid of any surface contamination. The author also applied the Bethe-Salpeter method to his uncommonly pristine and precise normal state data, and was able to predict the approximate superconducting transition temperatures of different samples. This rare combination of experiment with sophisticated theoretical calculations leads to the conclusion that antiferromagnetic correlations are a viable candidate for the pairing interaction in the cuprate superconductors.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 137
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Book Description
Author: Mohamed M. Faiz
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
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Book Description
