Generation of Spin Waves in Nonuniform dc Magnetic Fields. II. Calculation of the Coupling Length
- 1 January 1964
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 35 (1), 167-170
- https://doi.org/10.1063/1.1713060
Abstract
The coupling length is calculated by using two approaches: (a) For a simple model the wavefunction and the coupling length are determined rigorously; (b) More general, approximate results are obtained by means of the WKB method, which is valid if the dc magnetic field varies sufficiently slowly. It is shown that the coupling length is inversely proportional to the square root of the field gradient at the turning point.Keywords
This publication has 2 references indexed in Scilit:
- Generation of Spin Waves in Nonuniform Magnetic Fields. I. Conversion of Electromagnetic Power into Spin-Wave Power and Vice VersaJournal of Applied Physics, 1964
- Spin-Wave Propagation and the Magnetoelastic Interaction in Yttrium Iron GarnetJournal of Applied Physics, 1963