Matches in SemOpenAlex for { <https://semopenalex.org/work/W2002189172> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W2002189172 endingPage "887" @default.
- W2002189172 startingPage "874" @default.
- W2002189172 abstract "We have studied the effects of an exchange-enhanced substitutional impurity on a host metal by double-time Green's functions. We have used a simplification of the Wolff model to describe this system, i.e., a one-band model in which Coulomb interactions in the host lattice are neglected, and the impurity is represented by $U{n}_{ensuremath{sigma}}{n}_{overline{ensuremath{sigma}}}+V({n}_{ensuremath{sigma}}+{n}_{overline{ensuremath{sigma}}})$, where ${n}_{ensuremath{sigma}}$ is the electron occupation number for spin $ensuremath{sigma}$ at the impurity site. A decoupling scheme is used in which operators on the exchange-enhanced site are never separated from each other in the process of decoupling. This leads to a singular integral equation for the localized Green's function of the exchange-enhanced site, in terms of which all the one-electron properties of the system are expressible. The integral equation, assuming essentially a Lorentzian density of states for the host lattice, is exactly solvable in the $U$-infinite, $V$-finite limit, as well as for the special case of electron-hole symmetry, $U+2V=0$. Numerical results for the $U$-infinite, $V$-zero limit for zero temperature are obtained for ${n}_{0}$, the number of electrons on the impurity site, and for the one-electron $t$ matrix as a function of energy. ${n}_{0}$ has a value of 0.4, which may be compared with the values ${n}_{0}=0$ predicted by the Hartree-Fock theory and ${n}_{0}=frac{2}{3}$ obtained by using a determinantal wave function from which the doubly occupied state is projected out. The $t$ matrix is found to exhibit a characteristic Kondo-like resonance at zero energy, and indicates a resistivity which falls rapidly with increasing temperature, as well as a specific-heat anomaly." @default.
- W2002189172 created "2016-06-24" @default.
- W2002189172 creator A5081885945 @default.
- W2002189172 creator A5086845697 @default.
- W2002189172 date "1969-12-10" @default.
- W2002189172 modified "2023-09-25" @default.
- W2002189172 title "Localized Correlations in Narrow Conduction Bands. I" @default.
- W2002189172 cites W1967517372 @default.
- W2002189172 cites W1969202506 @default.
- W2002189172 cites W1971472669 @default.
- W2002189172 cites W2005218945 @default.
- W2002189172 cites W2024082927 @default.
- W2002189172 cites W2024970006 @default.
- W2002189172 cites W2041377873 @default.
- W2002189172 cites W2057935592 @default.
- W2002189172 cites W2062380991 @default.
- W2002189172 cites W2082693701 @default.
- W2002189172 cites W2088855241 @default.
- W2002189172 cites W2090167148 @default.
- W2002189172 cites W2094617987 @default.
- W2002189172 cites W2100714047 @default.
- W2002189172 cites W2146061884 @default.
- W2002189172 cites W2148016544 @default.
- W2002189172 cites W2171233371 @default.
- W2002189172 cites W43495766 @default.
- W2002189172 doi "https://doi.org/10.1103/physrev.188.874" @default.
- W2002189172 hasPublicationYear "1969" @default.
- W2002189172 type Work @default.
- W2002189172 sameAs 2002189172 @default.
- W2002189172 citedByCount "44" @default.
- W2002189172 countsByYear W20021891722012 @default.
- W2002189172 countsByYear W20021891722013 @default.
- W2002189172 countsByYear W20021891722014 @default.
- W2002189172 countsByYear W20021891722015 @default.
- W2002189172 countsByYear W20021891722016 @default.
- W2002189172 countsByYear W20021891722019 @default.
- W2002189172 countsByYear W20021891722020 @default.
- W2002189172 crossrefType "journal-article" @default.
- W2002189172 hasAuthorship W2002189172A5081885945 @default.
- W2002189172 hasAuthorship W2002189172A5086845697 @default.
- W2002189172 hasConcept C113603373 @default.
- W2002189172 hasConcept C121332964 @default.
- W2002189172 hasConcept C147120987 @default.
- W2002189172 hasConcept C184779094 @default.
- W2002189172 hasConcept C24890656 @default.
- W2002189172 hasConcept C26873012 @default.
- W2002189172 hasConcept C2778049214 @default.
- W2002189172 hasConcept C2781204021 @default.
- W2002189172 hasConcept C37914503 @default.
- W2002189172 hasConcept C62520636 @default.
- W2002189172 hasConcept C71987851 @default.
- W2002189172 hasConcept C9342510 @default.
- W2002189172 hasConceptScore W2002189172C113603373 @default.
- W2002189172 hasConceptScore W2002189172C121332964 @default.
- W2002189172 hasConceptScore W2002189172C147120987 @default.
- W2002189172 hasConceptScore W2002189172C184779094 @default.
- W2002189172 hasConceptScore W2002189172C24890656 @default.
- W2002189172 hasConceptScore W2002189172C26873012 @default.
- W2002189172 hasConceptScore W2002189172C2778049214 @default.
- W2002189172 hasConceptScore W2002189172C2781204021 @default.
- W2002189172 hasConceptScore W2002189172C37914503 @default.
- W2002189172 hasConceptScore W2002189172C62520636 @default.
- W2002189172 hasConceptScore W2002189172C71987851 @default.
- W2002189172 hasConceptScore W2002189172C9342510 @default.
- W2002189172 hasIssue "2" @default.
- W2002189172 hasLocation W20021891721 @default.
- W2002189172 hasOpenAccess W2002189172 @default.
- W2002189172 hasPrimaryLocation W20021891721 @default.
- W2002189172 hasRelatedWork W1969129203 @default.
- W2002189172 hasRelatedWork W1983237958 @default.
- W2002189172 hasRelatedWork W2025932527 @default.
- W2002189172 hasRelatedWork W2055711513 @default.
- W2002189172 hasRelatedWork W2067220353 @default.
- W2002189172 hasRelatedWork W2090804925 @default.
- W2002189172 hasRelatedWork W294168068 @default.
- W2002189172 hasRelatedWork W3103755246 @default.
- W2002189172 hasRelatedWork W3124603063 @default.
- W2002189172 hasRelatedWork W3173325515 @default.
- W2002189172 hasVolume "188" @default.
- W2002189172 isParatext "false" @default.
- W2002189172 isRetracted "false" @default.
- W2002189172 magId "2002189172" @default.
- W2002189172 workType "article" @default.