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Magnon profile on SrRuO3 films studied by inelastic neutron scattering.
Dwivedi, G D; Wu, C-M; Chen, Bo-Yu; Lin, S T; Qiu, W-Z; Sun, S J; Xu, Guangyong; Lynn, J W; Chiou, J W; Lee, C-H; Li, W-H; Yano, S; Chou, H.
Afiliación
  • Dwivedi GD; Department of Physics, National Sun Yat-sen University, Kaohsiung, Taiwan, 80424, R.O.C.
  • Wu CM; National Synchrotron Radiation Research Center, Hsinchu, Taiwan, 30076, R.O.C. and Australian Nuclear Science and Technology Organization, New South Wales, Australia.
  • Chen BY; Department of Physics, National Sun Yat-sen University, Kaohsiung, Taiwan, 80424, R.O.C.
  • Lin ST; Department of Physics, National Sun Yat-sen University, Kaohsiung, Taiwan, 80424, R.O.C.
  • Qiu WZ; Department of Physics, National Sun Yat-sen University, Kaohsiung, Taiwan, 80424, R.O.C.
  • Sun SJ; Department of Applied Physics, National University of Kaohsiung, Kaohsiung, Taiwan, R.O.C.
  • Xu G; Department of Physics, National Sun Yat-sen University, Kaohsiung, Taiwan, 80424, R.O.C.
  • Lynn JW; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Chiou JW; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Lee CH; Department of Applied Physics, National University of Kaohsiung, Kaohsiung, Taiwan, R.O.C.
  • Li WH; Department of Physics, National Central University, Taoyuan City, Taiwan, R.O.C.
  • Yano S; Department of Physics, National Central University, Taoyuan City, Taiwan, R.O.C.
  • Chou H; National Synchrotron Radiation Research Center, Hsinchu, Taiwan, 30076, R.O.C. and Australian Nuclear Science and Technology Organization, New South Wales, Australia.
Phys Rev B ; 1012020.
Article en En | MEDLINE | ID: mdl-38855404
ABSTRACT
In this study, the inelastic neutron scattering probe of SIKA in ANSTO is employed to investigate the magnon dispersion curve in ferromagnetic SrRuO3 single crystal epitaxial films and to better understand the underlying mechanisms. This report presents the successful measurement of a magnon peak from the SrRuO3 films which contained an amount of material of only 0.9 mg. We reveal one significant magnon dispersion curve along [002] following the quadratic E ∝ Q 2 ) relation, which shows a magnon gap of 0.32 meV. We have discussed several possible mechanisms, such as the higher symmetry structure and the impurity levels, which may contribute to this smaller gap.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev B Año: 2020 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev B Año: 2020 Tipo del documento: Article Pais de publicación: Estados Unidos