Model for coupled 4 f-3d magnetic spectra: a neutron scattering study of the Yb-Fe hybridization in Yb3Fe5 O12
In this work, we explore experimentally and theoretically the spectrum of magnetic excitations of the Fe3+ and Yb3+ ions in ytterbium iron garnet (Yb3Fe5O12). We present a complete description of the crystal-field splitting of the 4f states of Yb3+, including the effect of the exchange field generat...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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American Physical Society
2022
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| _version_ | 1797106569223077888 |
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| author | Peçanha-Antonio, V Prabhakaran, D Balz, C Krajewska, A Boothroyd, AT |
| author_facet | Peçanha-Antonio, V Prabhakaran, D Balz, C Krajewska, A Boothroyd, AT |
| author_sort | Peçanha-Antonio, V |
| collection | OXFORD |
| description | In this work, we explore experimentally and theoretically the spectrum of magnetic excitations of the Fe3+ and Yb3+ ions in ytterbium iron garnet (Yb3Fe5O12). We present a complete description of the crystal-field splitting of the 4f states of Yb3+, including the effect of the exchange field generated by the magnetically ordered Fe subsystem. We also consider a further effect of the Fe-Yb exchange interaction, which is to hybridize the Yb crystal field excitations with the Fe spin-wave modes at positions in the Brillouin zone where the two types of excitations cross. We present detailed measurements of these hybridized excitations, and we propose a framework that can be used in the quantitative analysis of the coupled spectra in terms of the anisotropic 4f-3d exchange interaction. |
| first_indexed | 2024-03-07T07:04:22Z |
| format | Journal article |
| id | oxford-uuid:2c833c17-279e-4bd1-b117-682e8eff185b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:04:22Z |
| publishDate | 2022 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:2c833c17-279e-4bd1-b117-682e8eff185b2022-04-25T12:27:38ZModel for coupled 4 f-3d magnetic spectra: a neutron scattering study of the Yb-Fe hybridization in Yb3Fe5 O12Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2c833c17-279e-4bd1-b117-682e8eff185bEnglishSymplectic ElementsAmerican Physical Society2022Peçanha-Antonio, VPrabhakaran, DBalz, CKrajewska, ABoothroyd, ATIn this work, we explore experimentally and theoretically the spectrum of magnetic excitations of the Fe3+ and Yb3+ ions in ytterbium iron garnet (Yb3Fe5O12). We present a complete description of the crystal-field splitting of the 4f states of Yb3+, including the effect of the exchange field generated by the magnetically ordered Fe subsystem. We also consider a further effect of the Fe-Yb exchange interaction, which is to hybridize the Yb crystal field excitations with the Fe spin-wave modes at positions in the Brillouin zone where the two types of excitations cross. We present detailed measurements of these hybridized excitations, and we propose a framework that can be used in the quantitative analysis of the coupled spectra in terms of the anisotropic 4f-3d exchange interaction. |
| spellingShingle | Peçanha-Antonio, V Prabhakaran, D Balz, C Krajewska, A Boothroyd, AT Model for coupled 4 f-3d magnetic spectra: a neutron scattering study of the Yb-Fe hybridization in Yb3Fe5 O12 |
| title | Model for coupled 4 f-3d magnetic spectra: a neutron scattering study of the Yb-Fe hybridization in Yb3Fe5 O12 |
| title_full | Model for coupled 4 f-3d magnetic spectra: a neutron scattering study of the Yb-Fe hybridization in Yb3Fe5 O12 |
| title_fullStr | Model for coupled 4 f-3d magnetic spectra: a neutron scattering study of the Yb-Fe hybridization in Yb3Fe5 O12 |
| title_full_unstemmed | Model for coupled 4 f-3d magnetic spectra: a neutron scattering study of the Yb-Fe hybridization in Yb3Fe5 O12 |
| title_short | Model for coupled 4 f-3d magnetic spectra: a neutron scattering study of the Yb-Fe hybridization in Yb3Fe5 O12 |
| title_sort | model for coupled 4 f 3d magnetic spectra a neutron scattering study of the yb fe hybridization in yb3fe5 o12 |
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