Abstract
Magnetic properties and FMR of pulsed laser deposited Y 3 Fe 5 O 12 (YIG) thin film on Gd 3 Ga 5 O 12 (1 1 1) substrate have been investigated in the temperature range 4.2 ≤ T ≤ 300 K. The effective saturation magnetization (4πM eff ), obtained from Ferromagnetic Resonance at room temperature, is found to be 2600 G, which is higher than SQUID measured 4πM S value of 1770 G. This implies that the value of 4πM eff can only be accounted by considering a negative anisotropy field (H U ) of around 830 Oe at room temperature. Such an anisotropy is attributed to a compressive stress (−1.70 × 10 10 dyne/cm 2 ) induced in the film closer to the film-air interface. The presence of this stress in YIG film was confirmed using multiple {hkl} stress measurements with grazing incidence X-ray diffraction performed at different depth of penetration on the YIG film.
| Original language | English |
|---|---|
| Pages (from-to) | 191-195 |
| Number of pages | 5 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 483 |
| DOIs | |
| Publication status | Published - 1 Aug 2019 |
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Observation of enhanced magnetic anisotropy in PLD YIG thin film on GGG (1 1 1) substrate. / Bhoi, Biswanath; Venkataramani, N.; Prasad, Shiva; Aiyar, R. P.R.C.; Kumar, Gulshan; Samajdar, I.; Kostylev, M.
In: Journal of Magnetism and Magnetic Materials, Vol. 483, 01.08.2019, p. 191-195.Research output: Contribution to journal › Article
TY - JOUR
T1 - Observation of enhanced magnetic anisotropy in PLD YIG thin film on GGG (1 1 1) substrate
AU - Bhoi, Biswanath
AU - Venkataramani, N.
AU - Prasad, Shiva
AU - Aiyar, R. P.R.C.
AU - Kumar, Gulshan
AU - Samajdar, I.
AU - Kostylev, M.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - Magnetic properties and FMR of pulsed laser deposited Y 3 Fe 5 O 12 (YIG) thin film on Gd 3 Ga 5 O 12 (1 1 1) substrate have been investigated in the temperature range 4.2 ≤ T ≤ 300 K. The effective saturation magnetization (4πM eff ), obtained from Ferromagnetic Resonance at room temperature, is found to be 2600 G, which is higher than SQUID measured 4πM S value of 1770 G. This implies that the value of 4πM eff can only be accounted by considering a negative anisotropy field (H U ) of around 830 Oe at room temperature. Such an anisotropy is attributed to a compressive stress (−1.70 × 10 10 dyne/cm 2 ) induced in the film closer to the film-air interface. The presence of this stress in YIG film was confirmed using multiple {hkl} stress measurements with grazing incidence X-ray diffraction performed at different depth of penetration on the YIG film.
AB - Magnetic properties and FMR of pulsed laser deposited Y 3 Fe 5 O 12 (YIG) thin film on Gd 3 Ga 5 O 12 (1 1 1) substrate have been investigated in the temperature range 4.2 ≤ T ≤ 300 K. The effective saturation magnetization (4πM eff ), obtained from Ferromagnetic Resonance at room temperature, is found to be 2600 G, which is higher than SQUID measured 4πM S value of 1770 G. This implies that the value of 4πM eff can only be accounted by considering a negative anisotropy field (H U ) of around 830 Oe at room temperature. Such an anisotropy is attributed to a compressive stress (−1.70 × 10 10 dyne/cm 2 ) induced in the film closer to the film-air interface. The presence of this stress in YIG film was confirmed using multiple {hkl} stress measurements with grazing incidence X-ray diffraction performed at different depth of penetration on the YIG film.
UR - http://www.scopus.com/inward/record.url?scp=85063604639&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2019.03.111
DO - 10.1016/j.jmmm.2019.03.111
M3 - Article
VL - 483
SP - 191
EP - 195
JO - Journal of Magnetism & Magnetic Materials
JF - Journal of Magnetism & Magnetic Materials
SN - 0304-8853
ER -