Abstract
Described are ferromagnetic resonance (FMR) studies of the long wavelength magnetostatic wave modes of a single crystal yttrium iron garnet (YIG) slab magnetized by an in-plane field. A resonant circuit comprising a coil, 50 μ in diameter, is used to excite and detect the YIG microwave absorption spectrum. By changing its orientation and position over the sample surface it is possible to excite selectively different series of magnetostatic modes. The observed resonance fields are in good agreement with those calculated numerically from the Damon-Eshbach dispersion relation. The effect of heat currents on the magnetization dynamics in insulating magnets is explored. For a YIG crystal 10 mm in length, 2 mm in width and 25 micrometers in thickness, a temperature gradient of about 20 K/cm is sufficient to suppress the high-order longitudinal magnetostatic modes.
| Original language | English (US) |
|---|---|
| Article number | 6466525 |
| Pages (from-to) | 1055-1059 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 49 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2013 |
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Keywords
- Ferromagnetic resonance (FMR)
- magnetostatic modes
- spin caloritronics
- yttrium iron garnet (YIG)
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
Cite this
Local excitation of magnetostatic modes in YIG. / Papa, Elisa; Barnes, Stewart; Ansermet, Jean Philippe.
In: IEEE Transactions on Magnetics, Vol. 49, No. 3, 6466525, 2013, p. 1055-1059.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Local excitation of magnetostatic modes in YIG
AU - Papa, Elisa
AU - Barnes, Stewart
AU - Ansermet, Jean Philippe
PY - 2013
Y1 - 2013
N2 - Described are ferromagnetic resonance (FMR) studies of the long wavelength magnetostatic wave modes of a single crystal yttrium iron garnet (YIG) slab magnetized by an in-plane field. A resonant circuit comprising a coil, 50 μ in diameter, is used to excite and detect the YIG microwave absorption spectrum. By changing its orientation and position over the sample surface it is possible to excite selectively different series of magnetostatic modes. The observed resonance fields are in good agreement with those calculated numerically from the Damon-Eshbach dispersion relation. The effect of heat currents on the magnetization dynamics in insulating magnets is explored. For a YIG crystal 10 mm in length, 2 mm in width and 25 micrometers in thickness, a temperature gradient of about 20 K/cm is sufficient to suppress the high-order longitudinal magnetostatic modes.
AB - Described are ferromagnetic resonance (FMR) studies of the long wavelength magnetostatic wave modes of a single crystal yttrium iron garnet (YIG) slab magnetized by an in-plane field. A resonant circuit comprising a coil, 50 μ in diameter, is used to excite and detect the YIG microwave absorption spectrum. By changing its orientation and position over the sample surface it is possible to excite selectively different series of magnetostatic modes. The observed resonance fields are in good agreement with those calculated numerically from the Damon-Eshbach dispersion relation. The effect of heat currents on the magnetization dynamics in insulating magnets is explored. For a YIG crystal 10 mm in length, 2 mm in width and 25 micrometers in thickness, a temperature gradient of about 20 K/cm is sufficient to suppress the high-order longitudinal magnetostatic modes.
KW - Ferromagnetic resonance (FMR)
KW - magnetostatic modes
KW - spin caloritronics
KW - yttrium iron garnet (YIG)
UR - http://www.scopus.com/inward/record.url?scp=84874596041&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874596041&partnerID=8YFLogxK
U2 - 10.1109/TMAG.2012.2229386
DO - 10.1109/TMAG.2012.2229386
M3 - Article
AN - SCOPUS:84874596041
VL - 49
SP - 1055
EP - 1059
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 3
M1 - 6466525
ER -