Filters
Results 1 - 10 of 3527
Results 1 - 10 of 3527.
Search took: 0.027 seconds
Sort by: date | relevance |
AbstractAbstract
[en] Renormalization methods in various solid state problems (e.g., the Kondo effect) are analyzed from a qualitative vantage point. Our goal is to show how the renormalization procedure works, and to uncover a few simple general ideas (universality, phenomenological descriptions, etc...)
[fr]
L'application des methodes de renormalisation a divers problemes de physique des solides, comme l'effet Kondo, est analysee d'un point de vue resolument qualitatif. Le but poursuivi est de demonter le mecanisme de la procedure de renormalisation, et de degager un certain nombre de conclusions simples (universalite, approches phenomenologiques, etc...)Original Title
Applications de l'idee de renormalisation en physique du solide
Source
Colloquium critical phenomena; Dijon, France; 30 Jun 1975
Record Type
Journal Article
Literature Type
Conference
Journal
J. Phys. (Paris), Colloq; (no.1); p. C1.271-C1.282
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Houshiar, M.
Southampton Univ. (United Kingdom)1997
Southampton Univ. (United Kingdom)1997
AbstractAbstract
No abstract available
Source
Feb 1997; [vp.]; Available from British Library Document Supply Centre- DSC:DXN017151; Thesis (Ph.D.)
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Lonzarich, Gilbert; Pines, David; Yang, Yi-feng, E-mail: GGL1@phy.cam.ac.uk2017
AbstractAbstract
[en] Understanding the emergence and subsequent behavior of heavy electrons in Kondo lattice materials is one of the grand challenges in condensed matter physics. From this perspective we review the progress that has been made during the past decade and suggest some directions for future research. Our focus will be on developing a new microscopic framework that incorporates the basic concepts that emerge from a phenomenological description of the key experimental findings. (report on progress)
Primary Subject
Source
Available from http://dx.doi.org/10.1088/1361-6633/80/2/024501; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Fisk, Z.; Sarrao, J.L.; Thompson, J.D.
Los Alamos National Lab., NM (United States). Funding organisation: USDOE, Washington, DC (United States)1994
Los Alamos National Lab., NM (United States). Funding organisation: USDOE, Washington, DC (United States)1994
AbstractAbstract
[en] The Kondo insulating materials present a particularly simple limiting case of the strongly correlated electron lattice problem: one occupied f-state interacting with a single half-filled conduction band. Experiment shows that the solution to this problem has some remarkably simple aspects. Optical conductivity data display the strong coupling nature of this physics
Primary Subject
Secondary Subject
Source
1994; 17 p; SCES '94; Amsterdam (Netherlands); Aug 1994; CONF-9408113--4; CONTRACT W-7405-ENG-36; Also available from OSTI as DE95001156; NTIS; US Govt. Printing Office Dep
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Dias Da Silva, Luis G.; Dagotto, Elbio R.
Oak Ridge National Laboratory (United States). Funding organisation: SC USDOE - Office of Science (United States)
arXiv e-print [ PDF ]2009
Oak Ridge National Laboratory (United States). Funding organisation: SC USDOE - Office of Science (United States)
arXiv e-print [ PDF ]2009
AbstractAbstract
[en] The interplay between vibrational modes and Kondo physics is a fundamental aspect of transport properties of correlated molecular conductors. We present theoretical results for a single molecule in the Kondo regime connected to left and right metallic leads, creating the usual coupling to a conduction channel with left-right parity even. A center-of-mass vibrational mode introduces an additional phonon-assisted tunneling through the antisymmetric odd channel. A non-Fermi-liquid fixed point, reminiscent of the two-channel Kondo effect, appears at a critical value of the phonon-mediated coupling strength. Our numerical renormalization-group calculations for this system reveal non-Fermi-liquid behavior at low temperatures over lines of critical points. Signatures of this strongly correlated state are prominent in the thermodynamic properties and in the linear conductance.
Source
KC0202030; ERKCS93; AC05-00OR22725
Record Type
Journal Article
Journal
Physical Review. B, Condensed Matter and Materials Physics; ISSN 1098-0121;
; v. 79; p. 155302

Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] A brief discussion of the basic physics, some current issues and new results of heavy fermions are presented, emphasizing the importance of the antiferromagnetic correlations between f moments. For a Fermi liquid like fixed point, a nonperturbative approach to incorporate antiferromagnetic correlations into the fixed point is outlined. A possible two-fluid behavior of the heavy fermion micromagnetism and metamagnetism is proposed based on experimental results accumulated in the last several years. A simple model possessing the two-fluid behavior, the underscreened Kondo problem, is studied as an example. Its extension to more realistic situations is discussed. The intermediate coupling fixed point of the overscreened Kondo problem is thoroughly studied using the perturbative renormalization group method. Various thermodynamic and dynamic quantities are calculated and their exponents are determined
Source
1992; 117 p; State Univ. of New Jersey; New Brunswick, NJ (United States); Available from University Microfilms, P.O. Box 1764, Ann Arbor, MI 48106 (United States). Order No. 93-21,281; Thesis (Ph.D.).
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Assuming the BCS mechanism, we have adopted the Anderson-model Hamiltonian to investigate if the ferromagnetic and the superconducting states can coexist in the Kondo-type heavy fermion superconductors. The results show that the coexistent state is unstable
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Nunez-Regueiro, M.D.; Coqblin, B.; Iglesias, J.R., E-mail: nunezreg@lps.u-psud.fr, E-mail: coqblin@lps.u-psud.fr2004
AbstractAbstract
[en] We study here the underscreened Kondo-lattice model, where the localized spins S=1 are not completely screened by the s=((1)/(2)) conduction electron spins. It results a coexistence of a 5f magnetic order and a Kondo effect which can qualitatively account for the behavior of some uranium compounds
Primary Subject
Source
ICM 2003: International conference on magnetism; Rome (Italy); 27 Jul - 1 Aug 2003; S0304885303011302; Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Literature Type
Conference
Journal
Journal of Magnetism and Magnetic Materials; ISSN 0304-8853;
; CODEN JMMMDC; v. 272-276(6); p. E95-E96

Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Chastin, S.
Sussex Univ., Brighton (United Kingdom)1998
Sussex Univ., Brighton (United Kingdom)1998
AbstractAbstract
No abstract available
Source
1998; [vp.]; Available from British Library Document Supply Centre- DSC:DXN018728; Thesis (Ph.D.)
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Yoksan, S.
International Centre for Theoretical Physics, Trieste (Italy)1982
International Centre for Theoretical Physics, Trieste (Italy)1982
AbstractAbstract
[en] The theory of Kondo effect in superconductors put forward by Matsuura, Ichinose and Nagaoka is generalized to a two-band system. Analytic expressions for the variation of the critical temperature due to Kondo impurities are obtained. (author)
Primary Subject
Secondary Subject
Source
May 1982; 7 p
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
1 | 2 | 3 | Next |