Abstract
For a thin ferromagnetic film with the Dzyaloshinskii-Moriya interaction (DMI), we derive an expression of the extrinsic ferromagnetic resonance (FMR) linewidth in a quantum-mechanical way, taking into account scatterings from structural inhomogeneity. In the presence of the DMI, the magnon dispersion exhibits rich resonant states, especially in small external magnetic fields and strong DMI strength. It is found that the FMR linewidth shows several characteristic features such as a finite linewidth at zero frequency and peaks in the low-frequency range.
| Original language | English |
|---|---|
| Article number | 014430 |
| Journal | Physical Review B |
| Volume | 97 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2018 Jan 24 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Dzyaloshinskii-Moriya interaction induced extrinsic linewidth broadening of ferromagnetic resonance. / Oh, Jung Hyun; Hong, Ik Sun; Lee, Kyoung Jin.
In: Physical Review B, Vol. 97, No. 1, 014430, 24.01.2018.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Dzyaloshinskii-Moriya interaction induced extrinsic linewidth broadening of ferromagnetic resonance
AU - Oh, Jung Hyun
AU - Hong, Ik Sun
AU - Lee, Kyoung Jin
PY - 2018/1/24
Y1 - 2018/1/24
N2 - For a thin ferromagnetic film with the Dzyaloshinskii-Moriya interaction (DMI), we derive an expression of the extrinsic ferromagnetic resonance (FMR) linewidth in a quantum-mechanical way, taking into account scatterings from structural inhomogeneity. In the presence of the DMI, the magnon dispersion exhibits rich resonant states, especially in small external magnetic fields and strong DMI strength. It is found that the FMR linewidth shows several characteristic features such as a finite linewidth at zero frequency and peaks in the low-frequency range.
AB - For a thin ferromagnetic film with the Dzyaloshinskii-Moriya interaction (DMI), we derive an expression of the extrinsic ferromagnetic resonance (FMR) linewidth in a quantum-mechanical way, taking into account scatterings from structural inhomogeneity. In the presence of the DMI, the magnon dispersion exhibits rich resonant states, especially in small external magnetic fields and strong DMI strength. It is found that the FMR linewidth shows several characteristic features such as a finite linewidth at zero frequency and peaks in the low-frequency range.
UR - http://www.scopus.com/inward/record.url?scp=85040937918&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85040937918&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.97.014430
DO - 10.1103/PhysRevB.97.014430
M3 - Article
VL - 97
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 1
M1 - 014430
ER -