Theory of Unconventional Superconductors

Theory of Unconventional Superconductors PDF

Author: Dirk Manske

Publisher: Springer Science & Business Media

Published: 2004-06-25

Total Pages: 244

ISBN-13: 9783540212294

DOWNLOAD EBOOK →

This book presents a theory for unconventional superconductivity driven by spin excitations. Using the Hubbard Hamiltonian and a self-consistent treatment of the spin excitations, the interplay between magnetism and superconductivity in various unconventional superconductors is discussed. In particular, the monograph applies this theory for Cooper-pairing due to the exchange of spin fluctuations to the case of singlet pairing in hole- and electron-doped high-Tc superconductors, and to triplet pairing in Sr2RuO4. Within the framework of a generalized Eliashberg-like treatment, calculations of both many normal and superconducting properties as well as elementary excitations are performed. The results are related to the phase diagrams of the materials which reflect the interaction between magnetism and superconductivity.

Introduction to Unconventional Superconductivity

Introduction to Unconventional Superconductivity PDF

Author: V.P. Mineev

Publisher: CRC Press

Published: 1999-09-21

Total Pages: 204

ISBN-13: 9789056992095

DOWNLOAD EBOOK →

Unconventional superconductivity (or superconductivity with a nontrivial Cooper pairing) is believed to exist in many heavy-fermion materials as well as in high temperature superconductors, and is a subject of great theoretical and experimental interest. The remarkable progress achieved in this field has not been reflected in published monographs and textbooks, and there is a gap between current research and the standard education of solid state physicists in the theory of superconductivity. This book is intended to meet this information need and includes the authors' original results.

Unconventional Superconductors

Unconventional Superconductors PDF

Author: Iman Askerzade

Publisher: Springer Science & Business Media

Published: 2012-01-13

Total Pages: 189

ISBN-13: 3642226523

DOWNLOAD EBOOK →

This book presents the anisotropy and multiband effects in newly discovered unconventional superconductors: cuprate superconductors, borocarbides, magnezium-diboride and oxypnictides. The physical properties of these unconventional superconductors and the application of the two-band Ginzburg-Landau theory to these superconducting compounds are explained. Temperature dependencies of fundamental superconducting parameters are calculated using the GL theory taking into account multiband-and anisotropy effects. A comparision of theoretical results and experimental data is conducted. Additionally, the analytical solution of the microscopical Eliashberg theory and of the BCS theory is developed for two-band and anisotropic superconductors. Fluctuation effects in newly discovered superconductors are also discussed.

Unconventional Superconductors

Unconventional Superconductors PDF

Author: Gernot Goll

Publisher: Springer Science & Business Media

Published: 2006

Total Pages: 202

ISBN-13: 9783540289852

DOWNLOAD EBOOK →

This book offers a comprehensive summary of experiments that are especially suited to reveal the order-parameter symmetry of unconventional superconductors. It briefly introduces readers to the basic theoretical concepts and terms of unconventional superconductivity, followed by a detailed overview of experimental techniques and results investigating the superconducting energy gap and phase, plus the pairing symmetry. This review includes measurements of specific heat, thermal conductivity, penetration depth and nuclearmagnetic resonance and muon-spin rotation experiments. Further, point-contact and tunnelling spectroscopy and Josephson experiments are addressed. Current understanding is reviewed from the experimental point of view. With an appendix offering five tables with almost 200 references that summarize the present results from ambient pressure heavy-fermion and noncopper-oxide superconductors, the monograph provides a valuable resource for further studies in this field.

Superconductivity

Superconductivity PDF

Author: Karl-Heinz Bennemann

Publisher: Springer Science & Business Media

Published: 2008-04-25

Total Pages: 1568

ISBN-13: 3540732535

DOWNLOAD EBOOK →

This extensive and comprehensive handbook systematically reviews the basic physics, theory and recent advances in superconductivity. Covering the entire field, this unparalleled resource carefully blends theoretical studies with experimental results to provide an indispensable foundation for further research. Leading researchers, including Nobel laureates, describe the state of the art in conventional and unconventional superconductors. In addition to full-coverage of novel materials and underlying mechanisms, the handbook reflects continued, intense research into electron-phone based superconductivity.

Non-Centrosymmetric Superconductors

Non-Centrosymmetric Superconductors PDF

Author: Ernst Bauer

Publisher: Springer Science & Business Media

Published: 2012-01-10

Total Pages: 360

ISBN-13: 3642246249

DOWNLOAD EBOOK →

Superconductivity in materials without inversion symmetry in the respective crystal structures occurs in the presence of antisymmetric spin-orbit coupling as a consequence of an emerging electric field gradient. The superconducting condensate is then a superposition of spin-singlet and spin-triplet Cooper pairs. This scenario accounts for various experimental findings such as nodes in the superconducting gap or extremely large upper critical magnetic fields. Spin-triplet pairing can occur in non-centrosymmetric superconductors in spite of Anderson’s theorem that spin-triplet pairing requires a crystal structure that exhibits inversion symmetry. This book, authored and edited by leading researchers in the field, is both an introduction to and overview on this exciting branch of novel superconductors. Its self-contained and tutorial style makes it particularly suitable for self-study and as source of teaching material for special seminars and courses. At the same time it constitutes an up-to-date and authoritative reference for anyone working in this exciting field.

Theory of Conventional and Unconventional Superconductivity in the High-Tc Cuprates and Other Systems

Theory of Conventional and Unconventional Superconductivity in the High-Tc Cuprates and Other Systems PDF

Author: Dzhumanov Safarali

Publisher: Nova Science Publishers

Published: 2014-05-14

Total Pages: 356

ISBN-13: 9781620815823

DOWNLOAD EBOOK →

The study of superconductivity in solids was initiated in 1911 after the dis-covery of this phenomenon in ordinary metals by Kamerlingh-Onnes. This book presents the fundamentals of the modern microscopic theory of conventional and unconventional superconductivity in high-Tc cuprates and other systems.

Lanterna Rally - Theme by Grace Themes