Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Tetsuya Takimoto | - |
dc.date.accessioned | 2016-11-29T04:45:05Z | - |
dc.date.available | 2016-11-29T04:45:05Z | - |
dc.date.issued | 2015-05 | - |
dc.identifier.citation | JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, v. 84, no.6, Page. 1-7 | en_US |
dc.identifier.issn | 1347-4073 | - |
dc.identifier.issn | 0031-9015 | - |
dc.identifier.uri | http://journals.jps.jp/doi/abs/10.7566/JPSJ.84.064709 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/24607 | - |
dc.description.abstract | We investigate the orbital fluctuations in the ferromagnetic–metallic phase of La2−2xSr1+2xMn2O7 near x = 0.4 by considering a two orbital model within a tight-binding description which reproduces the ARPES Fermi surface. We find strong antisymmetric transverse orbital fluctuations at wavevector (0.5π,0.5π)(0.5π,0.5π) resulting from the Fermi-surface nesting between the portions of bonding and antibonding bands instead of the widely believed nesting between the portions of bonding band despite their flat segments, which provide an insight into the origin of so called CE-type orbital fluctuations in the ferromagnetic–metallic phase. Subsequent renormalization of the phonons near wavevector (0.5π,0.5π)(0.5π,0.5π) and the behavior of the phonon linewidth as a function of momentum are in agreement with the inelastic neutron scattering experiments. | en_US |
dc.description.sponsorship | This work is supported by Basic Science Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2012R1A1A2008559). D. K. Singh would also like to acknowledge the Korea Ministry of Education, Science and Technology, Gyeongsangbuk-Do and Pohang City for the support of Young Scientist Training Program at the Asia Pacific Centre for Theoretical Physics. K. H. Lee would also like to thank the Korea Ministry of Education, Science and Technology, Gyeongsangbuk-Do and Pohang City for the support of Independent Junior Research Groups at the Asia Pacific Centre for Theoretical Physics and NRF-2012R1A1A2008028. | en_US |
dc.language.iso | en | en_US |
dc.publisher | PHYSICAL SOC JAPAN | en_US |
dc.subject | MANGANITES | en_US |
dc.subject | MAGNETORESISTANCE | en_US |
dc.subject | LA1.2SR1.8MN2O7 | en_US |
dc.subject | SPECTROSCOPY | en_US |
dc.subject | SPECTRA | en_US |
dc.subject | OXIDES | en_US |
dc.subject | LAMNO3 | en_US |
dc.subject | FILMS | en_US |
dc.title | On the Origin of CE-Type Orbital Fluctuations in the Ferromagnetic Metallic Phase of La2-2xSr1+2xMn2O7 near x=0.4 | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.7566/JPSJ.84.064709 | - |
dc.relation.page | 1-7 | - |
dc.relation.journal | JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | - |
dc.contributor.googleauthor | Singh, Dheeraj Kumar | - |
dc.contributor.googleauthor | Lee, Ki Hoon | - |
dc.contributor.googleauthor | Takimoto, Tetsuya | - |
dc.relation.code | 2015009737 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF PHYSICS | - |
dc.identifier.pid | takimoto | - |
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