| d-f hybridization and quantum criticality in weakly-itinerant ferromagnets. | |
| | |
MedLine Citation:
|
PMID: 23209082 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
We investigate the unusual magnetic, thermodynamic and transport properties of nearly-critical, weakly-itinerant ferromagnets with the general formula UTX, where T=Rh, Co and X=Ge, Si. As a unique feature of these systems, we show how changes in the V(df) hybridization, which controls their proximity to a ferromagnetic instability, determine the evolution of the ground state magnetization, M(0), the Curie temperature, T(C), the density of states at the Fermi level, N(E(F)), the T(2) resistivity coefficient, A, and the specific heat coefficient, γ. The universal aspect of our findings comes from the dependence on only two parameters: the transition metal T(d) bandwidth, W(d), and the distance between the T(d) and U(f) band centers, C(T(d)) - C(U(f)). We discuss our results in connection to data for URh(1-x)Co(x)Ge. |
| | |
Authors:
|
M B Silva Neto; A H Castro Neto; J S Kim; G R Stewart |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-12-04 |
Journal Detail:
|
Title: Journal of physics. Condensed matter : an Institute of Physics journal Volume: 25 ISSN: 1361-648X ISO Abbreviation: J Phys Condens Matter Publication Date: 2012 Dec |
Date Detail:
|
Created Date: 2012-12-4 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101165248 Medline TA: J Phys Condens Matter Country: - |
Other Details:
|
Languages: ENG Pagination: 025601 Citation Subset: - |
Affiliation:
|
Instituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, Brazil. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Observation of a pressure-induced As-As hybridization associated with a change in the electronic sta...
Next Document: Charge and spin fractionalization in strongly correlated topological insulators.