dc.identifier.uri | http://dx.doi.org/10.15488/1410 | |
dc.identifier.uri | http://www.repo.uni-hannover.de/handle/123456789/1435 | |
dc.contributor.author | Sakamaki, M. | |
dc.contributor.author | Konishi, T. | |
dc.contributor.author | Shirakawa, T. | |
dc.contributor.author | Ohta, Y. | |
dc.date.accessioned | 2017-04-28T08:05:10Z | |
dc.date.available | 2017-04-28T08:05:10Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Sakamaki, M.; Konishi, T.; Shirakawa, T.; Ohta, Y.: A new half-metallic ferromagnet K2Cr8O16 predicted by an ab-initio electronic structure calculation. In: Journal of Physics: Conference Series 200 (2010), 12172. DOI: https://doi.org/10.1088/1742-6596/200/1/012172 | |
dc.description.abstract | The first-principles electronic structure calculation is carried out to predict that a chromium oxide K2Cr8O16 with the hollandite-type crystal structure should be a new half-metallic ferromagnet. We compare our results with recent experimental data which indicate the ferromagnetic-metal to ferromagnetic-insulator transition at T ∼ 90 K, as well as the paramagnetic-metal to ferromagnetic-metal transition at T ∼ 180 K. Based on the calculated electronic structures, we argue that the double-exchange mechanism is responsible for the observed saturated ferromagnetism and the formation of the incommensurate, long-wavelength density wave of spinless fermions caused by the Fermi-surface nesting may be the origin of the opening of the charge gap. | 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 | Ab-initio electronic structure calculations | eng |
dc.subject | Charge gap | eng |
dc.subject | Chromium oxides | eng |
dc.subject | Double exchange mechanism | eng |
dc.subject | Electronic structure calculations | eng |
dc.subject | Experimental data | eng |
dc.subject | First-principles | eng |
dc.subject | Half-metallic ferromagnets | eng |
dc.subject | Hollandites | eng |
dc.subject | Long wavelength | eng |
dc.subject | Metal transition | eng |
dc.subject | Spinless fermion | eng |
dc.subject | Chromium | eng |
dc.subject | Electronic properties | eng |
dc.subject | Electronic structure | eng |
dc.subject | Ferromagnetic materials | eng |
dc.subject | Ferromagnetism | eng |
dc.subject | Magnets | eng |
dc.subject | Metal insulator transition | eng |
dc.subject | Strontium compounds | eng |
dc.subject | Superconducting materials | eng |
dc.subject | Crystal structure | eng |
dc.subject.classification | Konferenzschrift | ger |
dc.subject.ddc | 530 | Physik | ger |
dc.title | A new half-metallic ferromagnet K2Cr8O16 predicted by an ab-initio electronic structure calculation | eng |
dc.type | Article | |
dc.type | Text | |
dc.relation.issn | 1742-6588 | |
dc.relation.doi | https://doi.org/10.1088/1742-6596/200/1/012172 | |
dc.bibliographicCitation.issue | Section 1 | |
dc.bibliographicCitation.volume | 200 | |
dc.bibliographicCitation.firstPage | 12172 | |
dc.description.version | publishedVersion | |
tib.accessRights | frei zug�nglich |
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