Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Thermal conductivity and thermopower measurements in strongly correlated electron systems at low temperatures.
Thermal Transport in Strongly Correlated Electron Systems
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Thermal conductivity and thermopower measurements in strongly correlated electron systems at low temperatures.
Transport and Thermal Properties of f-Electron Systems
Author: H. FujiiPublisher: Springer Science & Business Media
ISBN: 1461528682
Category : Science
Languages : en
Pages : 304
Book Description
The Hiroshima Workshop on Transport and Thermal Properties of f-Electron Systems, T2PfS, was held in the hotel Greenpia Yasuura on the shores of the Seto Inland Sea near Hiroshima, Japan from August 30, to September 2, 1992, as a satellite meeting of the International Conference of Strongly Correlated Electron Systems in Sendai. The purpose of this workshop was to bring together those scientists who are actively involved in the research of 4f- and 5f-electron systems; particularly the transport and thermal properties such as electrical resistivity, Hall effect, thermoelectric power, thermal conductivity, thermal expansion and specific heat. Hence, the organizing committee limited the number of participants to 60; 25 from abroad and 35 from Japan. In the workshop, all the sessions consisted of oral presentations; 25 invited talks and 5 contributed talks, including at least 10 minutes of discussion for each presentation. The program was divided into the following five topics: [1] Kondo-lattice semiconductors, [2] superconductivity of f-electron systems, [3] anomalous transport and thermal properties of 4f- and 5f-compounds, [4] low-carrier heavy-electron systems and [5] theoretical investigation of heavy-electron and mixed-valence states. This division of topics has been retained in the organization of papers in this volume. Almost all of the invited and contributed papers are included. These papers include excellent reviews of both the recent advances and historical background of each topic. We believe this book would be a tutorial text for researchers working in the field of solid state physics.
Thermal Transport in Strongly Correlated Rare-Earth Intermetallic Compounds
Author: Heike PfauPublisher: Springer
ISBN: 3319395432
Category : Technology & Engineering
Languages : en
Pages : 133
Book Description
This thesis explores thermal transport in selected rare-earth-based intermetallic compounds to answer questions of great current interest. It also sheds light on the interplay of Kondo physics and Fermi surface changes. By performing thermal conductivity and electrical resistivity measurements at temperatures as low as 25mK, the author demonstrates that the Wiedemann–Franz law, a cornerstone of metal physics, is violated at precisely the magnetic-field-induced quantum critical point of the heavy-fermion metal YbRh2Si2. This first-ever observation of a violation has dramatic consequences, as it implies a breakdown of the quasiparticle picture. Utilizing an innovative technique to measure low-temperature thermal transport isothermally as a function of the magnetic field, the thesis interprets specific, partly newly discovered, high-field transitions in CeRu2Si2 and YbRh2Si2 as Lifshitz transitions related to a change in the Fermi surface. Lastly, by applying this new technique to thermal conductivity measurements of the skutterudite superconductor LaPt4Ge12, the thesis proves that the system is a conventional superconductor with a single energy gap. Thus, it refutes the widespread speculations about unconventional Cooper pairing in this material.
Thermal and Charge Transport in Correlated Electron Systems
Author: Indranil PaulElectron Correlation in Metals
Author: K. YamadaPublisher: Cambridge University Press
ISBN: 1139453068
Category : Science
Languages : en
Pages : 257
Book Description
Since the discovery of high Tc superconductivity, the role of electron correlation on superconductivity has been an important issue in condensed matter physics. Here the role of electron correlation in metals is explained in detail on the basis of the Fermi liquid theory. The book, originally published in 2004, discusses the following issues: enhancements of electronic specific heat and magnetic susceptibility, effects of electron correlation on transport phenomena such as electric resistivity and Hall coefficient, magnetism, Mott transition and unconventional superconductivity. These originate commonly from the Coulomb repulsion between electrons. In particular, superconductivity in strongly correlated electron systems is discussed with a unified point of view. This book is written to explain interesting physics in metals for undergraduate and graduate students and researchers in condensed matter physics.
Lectures on the Physics of Highly Correlated Electron Systems VI
Author: Ferdinando ManciniPublisher: American Inst. of Physics
ISBN: 9780735400832
Category : Science
Languages : en
Pages : 260
Book Description
This volume contains the lectures and participant contributions delivered at the Sixth Training Course in the Physics of Correlated Electron Systems and High-Tc Superconductors. Different from usual workshops, this course was designed to promote active participation of senior and young researchers and to introduce them to some specific problems. Lecture topics include: Introduction to Renormalization Group and Ward Identities in Critical Phenomena and in Fermi and Bose Liquids; Local Moment Physics in Heavy Electron Systems; and Transport of Strongly Correlated Electrons. Other contributions include: Theoretical de Haas-van Alphen Data and Plasma Frequencies of MgB2 and TaB2; Magnetic and Orbital Ordering in Doped Manganites; A Combined Exact Diagonalization - ab initio Study of the Metallicity and Electron Localization in Nanoscopic Systems; A New Spinwave Expansion for the Ordered Kondo Lattice; and The Novel Superconducting Clathrates.
Transport Phenomena in Strongly Correlated Fermi Liquids
Author: Hiroshi KontaniPublisher: Springer
ISBN: 9783642353666
Category : Science
Languages : en
Pages : 173
Book Description
In conventional metals, various transport coefficients are scaled according to the quasiparticle relaxation time, \tau, which implies that the relaxation time approximation (RTA) holds well. However, such a simple scaling does not hold in many strongly correlated electron systems, reflecting their unique electronic states. The most famous example would be cuprate high-Tc superconductors (HTSCs), where almost all the transport coefficients exhibit a significant deviation from the RTA results. To better understand the origin of this discrepancy, we develop a method for calculating various transport coefficients beyond the RTA by employing field theoretical techniques. Near the magnetic quantum critical point, the current vertex correction (CVC), which describes the electron-electron scattering beyond the relaxation time approximation, gives rise to various anomalous transport phenomena. We explain anomalous transport phenomena in cuprate HTSCs and other metals near their magnetic or orbital quantum critical point using a uniform approach. We also discuss spin related transport phenomena in strongly correlated systems. In many d- and f-electron systems, the spin current induced by the spin Hall effect is considerably greater because of the orbital degrees of freedom. This fact attracts much attention due to its potential application in spintronics. We discuss various novel charge, spin and heat transport phenomena in strongly correlated metals.
An Investigation of the Thermal Properties of Some Strongly Correlated Electron Systems
Author: Mark James ParsonsElectronic Transport Theories
Author: Navinder SinghPublisher: CRC Press
ISBN: 1498743609
Category : Science
Languages : en
Pages : 240
Book Description
Maintaining a practical perspective, Electronic Transport Theories: From Weakly to Strongly Correlated Materials provides an integrative overview and comprehensive coverage of electronic transport with pedagogy in view. It covers traditional theories, such as the Boltzmann transport equation and the Kubo formula, along with recent theories of transport in strongly correlated materials. The understood case of electronic transport in metals is treated first, and then transport issues in strange metals are reviewed. Topics discussed are: the Drude-Lorentz theory; the traditional Bloch-Boltzmann theory and the Grüneisen formula; the Nyquist theorem and its formulation by Callen and Welton; the Kubo formalism; the Langevin equation approach; the Wölfle-Götze memory function formalism; the Kohn-Luttinger theory of transport; and some recent theories dealing with strange metals. This book is an invaluable resource for undergraduate students, post-graduate students, and researchers with a background in quantum mechanics, statistical mechanics, and mathematical methods.
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