1962
DOI: 10.1049/pi-b-2.1962.0013
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Ferromagnetic relaxation in yttrium-iron garnet and the relation to applications

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Cited by 7 publications
(7 citation statements)
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“…However, the FMR results indicate the high quality of the material and the resulting low damping of LPE grown YIG films [33]. Additionally, Spencer and LeCraw [34] have shown that the magnetic damping constant α of a YIG single crystal depends approximately linearly on the temperature where our LSSE experiments are carried out (with slight variations due to the inherent microstructure defects). While the applicability of this temperature dependence for all thin films grown by different methods is not obvious, such a linear temperature dependence of the Gilbert damping in combination with its inverse proportionality leads to the observed ξ ∼ T −1 dependence, which agrees well with our experiments [ Fig.…”
Section: Resultsmentioning
confidence: 83%
“…However, the FMR results indicate the high quality of the material and the resulting low damping of LPE grown YIG films [33]. Additionally, Spencer and LeCraw [34] have shown that the magnetic damping constant α of a YIG single crystal depends approximately linearly on the temperature where our LSSE experiments are carried out (with slight variations due to the inherent microstructure defects). While the applicability of this temperature dependence for all thin films grown by different methods is not obvious, such a linear temperature dependence of the Gilbert damping in combination with its inverse proportionality leads to the observed ξ ∼ T −1 dependence, which agrees well with our experiments [ Fig.…”
Section: Resultsmentioning
confidence: 83%
“…Such a temperature difference may originate, e.g., from diffusive [12] or stochastic [16] transport or by considering "subthermal" magnons [11,14,33]. While data at elevated temperatures are sparse, low-temperature measurements [33] and the relatively long lifetime of the small-wave-number k magnons [34] even at room temperature suggest that the thermalization process between magnons and phonons is the limiting factor for highfrequency spin Seebeck excitations. The interaction with the other thermal reservoir, the electrons in the normal metal, can be assumed instantaneous in the experimentally accessed frequency range as spin current emission has been demonstrated for much higher frequencies, e.g., in spin pumping [7] or spin Hall magnetoresistance [35] experiments.…”
Section: Discussionmentioning
confidence: 99%
“…While it is relatively large for microwave magnons 46,47 it decreases significantly for short wavelength, thermal magnons. 28 Assuming that the majority of the magnetic damping in the YIG is due to the interaction with phonons, one can estimate τ mp by (cf.…”
Section: -4mentioning
confidence: 95%