Electron-Phonon Interaction in Conventional and Unconventional Superconductors

Nonfiction, Science & Nature, Technology, Superconductors & Superconductivity, Science, Physics, Thermodynamics
Cover of the book Electron-Phonon Interaction in Conventional and Unconventional Superconductors by Pegor Aynajian, Springer Berlin Heidelberg
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Pegor Aynajian ISBN: 9783642149689
Publisher: Springer Berlin Heidelberg Publication: January 19, 2011
Imprint: Springer Language: English
Author: Pegor Aynajian
ISBN: 9783642149689
Publisher: Springer Berlin Heidelberg
Publication: January 19, 2011
Imprint: Springer
Language: English

The problem of conventional, low-temperature superconductivity has been regarded as solved since the seminal work of Bardeen, Cooper, and Schrieffer (BCS) more than 50 years ago. However, the theory does not allow accurate predictions of some of the most fundamental properties of a superconductor, including the superconducting energy gap on the Fermi surface. This thesis describes the development and scientific implementation of a new experimental method that puts this old problem into an entirely new light. The nominee has made major contributions to the development and implementation of a new experimental method that enhances the resolution of spectroscopic experiments on dispersive lattice-vibrational excitations (the "glue" responsible for Cooper pairing of electrons in conventional superconductors) by more than two orders of magnitude. Using this method,he has discovered an unexpected relationship between the superconducting energy gap and the geometry of the Fermi surface in the normal state, both of which leave subtle imprints in the lattice vibrations that could not be resolved by conventional spectroscopic methods. He has confirmed this relationship on two elemental superconductors and on a series of metallic alloys. This indicates that a mechanism qualitatively beyond the standard BCS theory determines the magnitude and anisotropy of the superconducting gap.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

The problem of conventional, low-temperature superconductivity has been regarded as solved since the seminal work of Bardeen, Cooper, and Schrieffer (BCS) more than 50 years ago. However, the theory does not allow accurate predictions of some of the most fundamental properties of a superconductor, including the superconducting energy gap on the Fermi surface. This thesis describes the development and scientific implementation of a new experimental method that puts this old problem into an entirely new light. The nominee has made major contributions to the development and implementation of a new experimental method that enhances the resolution of spectroscopic experiments on dispersive lattice-vibrational excitations (the "glue" responsible for Cooper pairing of electrons in conventional superconductors) by more than two orders of magnitude. Using this method,he has discovered an unexpected relationship between the superconducting energy gap and the geometry of the Fermi surface in the normal state, both of which leave subtle imprints in the lattice vibrations that could not be resolved by conventional spectroscopic methods. He has confirmed this relationship on two elemental superconductors and on a series of metallic alloys. This indicates that a mechanism qualitatively beyond the standard BCS theory determines the magnitude and anisotropy of the superconducting gap.

More books from Springer Berlin Heidelberg

Cover of the book Strain Facies by Pegor Aynajian
Cover of the book Managing Open Innovation Technologies by Pegor Aynajian
Cover of the book Radiology Illustrated: Spine by Pegor Aynajian
Cover of the book Kritische Metalle in der Großen Transformation by Pegor Aynajian
Cover of the book IT-Management im Zeitalter der Digitalisierung by Pegor Aynajian
Cover of the book Dynamic Tectonics and Karst by Pegor Aynajian
Cover of the book Verfahrens- und Prozessrecht in Amts-, Staatshaftungs- und Entschädigungsverfahren by Pegor Aynajian
Cover of the book Theoretical and Experimental Studies on Novel High-Gain Seeded Free-Electron Laser Schemes by Pegor Aynajian
Cover of the book Current Topics in Pathology by Pegor Aynajian
Cover of the book Nomenclature, Methodology and Results of Clinical Trials in Acute Leukemias by Pegor Aynajian
Cover of the book Contrast Media in Radiology by Pegor Aynajian
Cover of the book Sustainable Transport by Pegor Aynajian
Cover of the book A Study on Radio Access Technology Selection Algorithms by Pegor Aynajian
Cover of the book Clinical Ophthalmic Oncology by Pegor Aynajian
Cover of the book Ethics and Diversity in Business Management Education by Pegor Aynajian
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy