dc.identifier.uri | http://dx.doi.org/10.15488/1436 | |
dc.identifier.uri | http://www.repo.uni-hannover.de/handle/123456789/1461 | |
dc.contributor.author | Nakano, K. | |
dc.contributor.author | Shirakawa, T. | |
dc.contributor.author | Ohta, Y. | |
dc.date.accessioned | 2017-04-28T09:11:58Z | |
dc.date.available | 2017-04-28T09:11:58Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Nakano, K.; Shirakawa, T.; Ohta, Y.: Nonquasiparticle states in the half-metallic ferromagnet simulated by the two-band Hubbard model. In: Journal of Physics: Conference Series 200 (2010), 12143. DOI: https://doi.org/10.1088/1742-6596/200/1/012143 | |
dc.description.abstract | The density-matrix renormalization group method is used to study the three-band zigzag ladder model that simulates the electronic state of the t 2g-orbital system of the double string of the edge-shared CrO 6 octahedra in the half-metallic ferromagnet K2Cr 8O16. The saturated ferromagnetism caused by the double-exchange mechanism is thereby demonstrated. We also use the Lanczos exact-diagonalization technique on small clusters to study the two Hubbard chains coupled with the ferromagnetic exchange interaction, whereby we consider the nonquasiparticle states in the half-metallic ferromagnet that appear in the single-particle spectral function. | eng |
dc.description.sponsorship | Ministry of Education, Culture, Sports, Science and Technology of Japan | |
dc.language.iso | eng | |
dc.publisher | Bristol : IOP Publishing Ltd. | |
dc.relation.ispartofseries | Journal of Physics: Conference Series 200 (2010) | |
dc.rights | CC BY 3.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | |
dc.subject | Density matrix renormalization group | eng |
dc.subject | Diagonalization techniques | eng |
dc.subject | Double exchange mechanism | eng |
dc.subject | Double string | eng |
dc.subject | Ferromagnetic exchange interaction | eng |
dc.subject | Half-metallic ferromagnets | eng |
dc.subject | Hubbard | eng |
dc.subject | Ladder model | eng |
dc.subject | Lanczos | eng |
dc.subject | Single-particle spectral function | eng |
dc.subject | Small clusters | eng |
dc.subject | Two-band Hubbard model | eng |
dc.subject | Chromium | eng |
dc.subject | Computer simulation | eng |
dc.subject | Electronic states | eng |
dc.subject | Ferromagnetic materials | eng |
dc.subject | Hubbard model | eng |
dc.subject | Magnets | eng |
dc.subject | Spectroscopy | eng |
dc.subject | Statistical mechanics | eng |
dc.subject | Strontium compounds | eng |
dc.subject | Superconducting materials | eng |
dc.subject | Ferromagnetism | eng |
dc.subject.classification | Konferenzschrift | ger |
dc.subject.ddc | 530 | Physik | ger |
dc.title | Nonquasiparticle states in the half-metallic ferromagnet simulated by the two-band Hubbard model | |
dc.type | Article | |
dc.type | Text | |
dc.relation.issn | 1742-6588 | |
dc.relation.doi | https://doi.org/10.1088/1742-6596/200/1/012143 | |
dc.bibliographicCitation.issue | Section 1 | |
dc.bibliographicCitation.volume | 200 | |
dc.bibliographicCitation.firstPage | 12143 | |
dc.description.version | publishedVersion | |
tib.accessRights | frei zug�nglich |
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