Dwivedi, G.
, Wu, C.
, Chen, B.
, Lin, S.
, Qiu, W.
, Sun, S.
, Xu, G.
, Lynn, J.
, Chiou, J.
, Lee, C.
, Li, W.
, Yano, S.
and Chou, H.
(2020),
Magnon Profile on SrRuO<sub>3</sub> Films Studied by Inelastic Neutron Scattering, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=929391
(Accessed April 25, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Magnon Profile on SrRuO3 Films Studied by Inelastic Neutron Scattering
Published
Author(s)
G. D. Dwivedi, C.-M. Wu, Bo-Yu Chen, S. T. Lin, W.-Z. Qiu, S. J. Sun, , , J. W. Chiou, C.-H. Lee, W.-H. Li, S. Yano, H. Chou
Abstract
In this study, the inelastic neutron scattering (INS) 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 magnon peak from the SrRuO3 films that, though, contained very small material of 0.9mg. We reveal one significant magnon dispersion curve along [002] following the quadratic (E ∝ Q2) relation, which shows a magnon gap of 0.32meV. We have discussed several possible mechanisms, such as the higher symmetry structure and the impurity levels, which may contribute to this smaller gap.Citation
Physical Review B
Volume
101
Issue
5
Pub Type
Journals
Download Paper
Keywords
Ferromagnet, Inelastic Neutron Scattering, magnon dispersion, Thin film, Spin Gap
Citation
Created February 2, 2020, Updated October 12, 2021