Search Results - (Author, Cooperation:R. T. Scalettar)
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1Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-06-29Publisher: American Physical Society (APS)Print ISSN: 1098-0121Electronic ISSN: 1095-3795Topics: PhysicsKeywords: Electronic structure and strongly correlated systemsPublished by: -
2Latest Papers from Table of Contents or Articles in PressR. A. Hart ; P. M. Duarte ; T. L. Yang ; X. Liu ; T. Paiva ; E. Khatami ; R. T. Scalettar ; N. Trivedi ; D. A. Huse ; R. G. Hulet
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-02-25Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Latest Papers from Table of Contents or Articles in PressN. C. Costa, T. Blommel, W.-T. Chiu, G. Batrouni, and R. T. Scalettar
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-05-05Publisher: American Physical Society (APS)Print ISSN: 0031-9007Electronic ISSN: 1079-7114Topics: PhysicsKeywords: Condensed Matter: Electronic Properties, etc.Published by: -
4Latest Papers from Table of Contents or Articles in PressN. C. Costa, M. V. Araújo, J. P. Lima, T. Paiva, R. R. dos Santos, and R. T. Scalettar
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-02-14Publisher: American Physical Society (APS)Print ISSN: 1098-0121Electronic ISSN: 1095-3795Topics: PhysicsKeywords: Electronic structure and strongly correlated systemsPublished by: -
5Articles: DFG German National LicensesZhang, F. ; Thevuthasan, S. ; Scalettar, R. T. ; Singh, R. R. P. ; Fadley, C. S.
[S.l.] : American Institute of Physics (AIP)
Published 1994Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We have used Ising-model Monte Carlo calculations to study the magnetic order near cubic ferromagnetic and antiferromagnetic surfaces. The antiferromagnets were studied with and without frustrated next-nearest-neighbor interactions. Intralayer and interlayer spin-spin correlation functions have been calculated as a function of the relative coupling strength in the surface layer. If this coupling strength is more than a few times the bulk value, a distinct surface phase transition is observed at temperatures TC,surf or TN,surf that can be significantly above the corresponding bulk values, TC,bulk or TN,bulk. These calculations suggest that previous spin-polarized photoelectron diffraction measurements on antiferromagnetic KMnF3(110) and MnO(001) could in fact have been observing such surface transitions at TN,surf values of 2.7 and 4.5 times TN,bulk, respectively.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesScalapino, D. J. ; Sugar, R. L. ; Noack, R. ; White, S. R. ; Scalettar, R. T. ; Vekic, M. ; Cannon, J. W.
Springer
Published 1995Staff ViewISSN: 1573-7357Keywords: 72.20 ; 71.28.+d ; 75.30.KzSource: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract The insulating states of three model systems, the two-chain Hubbard model, the two-layer two-dimensional Hubbard model, and the two-dimensional symmetric periodic Anderson model are discussed. All of these systems at half-filling have a charge gap but they can exhibit various types of spin gaps ranging from a vanishing spin gap in systems with strong antiferromagnetic correlations to a spin gap which is equal to the charge gap in the band-insulator regime. The interchain, interplane, or Anderson model f-d hybridization plays a key role in determining the spin-to-charge gap ratio and the nature of the insulating state.Type of Medium: Electronic ResourceURL: