Micromorphology, Microstructure and Magnetic Properties of Sputtered Garnet Multilayers

ABSTRACTThe growth technique, the micromorphological and microstructural characterization by means of atomic force microscopy (AFM) and secondary ions mass spectrometry (SIMS) as well as the magnetic properties of a novel class of magnetic multilayers, based on radio frequency (RF) sputtered thin amorphous garnet films, are presented. One, three and five thin film multilayers composed by amorphous pure yttrium iron garnet (a:YIG) and amorphous gadolinium gallium garnet (a:GGG) have been grown on GGG single crystal substrates. The multilayer interfaces have been found to be comparable in both, the three and five-layers structure. Low field susceptibility measurements, showed a paramagnetic behaviour for the single layer YIG film. For the three and five layers samples, irreversibility effects were observed, giving evidence of magnetic clusters at the interface YIG/GGG.

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Target grain size dependence of the morphology, crystallinity and magnetic properties of yttrium iron garnet films

Ceramics International ◽

10.1016/j.ceramint.2018.10.255 ◽

2019 ◽

Vol 45 (3) ◽

pp. 3414-3418

Author(s):

Qianwen Guo ◽

Hui Zheng ◽

Liang Zheng ◽

Peng Zheng ◽

Qiong Wu

Keyword(s):

Grain Size ◽

Magnetic Properties ◽

Yttrium Iron Garnet ◽

Size Dependence ◽

Yttrium Iron ◽

Garnet Films ◽

Iron Garnet

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Aging Effects on the Structural and Magnetic Properties of Terbium–Aluminium Co-doping of Yttrium Iron Garnet Films Prepared Using the Sol–Gel Method

Journal of Electronic Materials ◽

10.1007/s11664-018-6417-0 ◽

2018 ◽

Vol 47 (9) ◽

pp. 5302-5309 ◽

Cited By ~ 2

Author(s):

Ftema W. Aldbea ◽

Efil Yusrianto ◽

N. B. Ibrahim

Keyword(s):

Magnetic Properties ◽

Yttrium Iron Garnet ◽

Sol Gel ◽

Aging Effects ◽

Yttrium Iron ◽

Gel Method ◽

Co Doping ◽

Garnet Films ◽

Structural And Magnetic Properties ◽

Iron Garnet

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Electric Field Driven Magnetic Domain Wall Motion in Iron Garnet Films

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.152-153.143 ◽

2009 ◽

Vol 152-153 ◽

pp. 143-146 ◽

Cited By ~ 5

Author(s):

A. Logginov ◽

G. Meshkov ◽

A. Nikolaev ◽

E. Nikolaeva ◽

A. Pyatakov ◽

...

Keyword(s):

Domain Wall ◽

Electric Field ◽

Wall Motion ◽

Magnetic Domain ◽

Domain Wall Motion ◽

Gadolinium Gallium Garnet ◽

Magnetic Domain Wall ◽

Garnet Films ◽

Dynamic Observation ◽

Iron Garnet

The room temperature magnetoelectric effect was observed in epitaxial iron garnet films that appeared as magnetic domain wall motion induced by electric field. The films grown on gadolinium-gallium garnet substrates with various crystallographic orientations were examined. The effect was observed in (210) and (110) films and was not observed in (111) films. Dynamic observation of the domain wall motion in 800 kV/cm electric field pulses gave the domain wall velocity in the range 30÷50 m/s. Similar velocity was achieved in magnetic field pulse about 50 Oe.

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Magnetic properties of spin waves in thin yttrium iron garnet films

Physical Review B ◽

10.1103/physrevb.95.064409 ◽

2017 ◽

Vol 95 (6) ◽

Cited By ~ 19

Author(s):

A. Talalaevskij ◽

M. Decker ◽

J. Stigloher ◽

A. Mitra ◽

H. S. Körner ◽

...

Keyword(s):

Magnetic Properties ◽

Yttrium Iron Garnet ◽

Spin Waves ◽

Yttrium Iron ◽

Garnet Films ◽

Iron Garnet

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Optimized Nonreciprocal Rib Waveguides for Integrated Magneto-Optic Isolators

MRS Proceedings ◽

10.1557/proc-517-463 ◽

1998 ◽

Vol 517 ◽

Cited By ~ 1

Author(s):

M. Wallenhorst ◽

V. Backherms ◽

A. Josef ◽

N. Bahlmann ◽

M. Lohmeyer ◽

...

Keyword(s):

Phase Shift ◽

Temperature Dependence ◽

Double Layer ◽

Faraday Rotation ◽

Single Layer ◽

Large Temperature ◽

Gadolinium Gallium Garnet ◽

Rare Earth Ion ◽

Garnet Films ◽

Rib Waveguides

AbstractGarnet films of composition (Lu,Bi)3(Fe,Ga,Al)5O12 and (Tm,Bi)3(Fe,Ga)5O12 are grown by liquid-phase epitaxy on [111]-oriented substrates of gadolinium gallium garnet. Ferrimagnetic films with positive or negative Faraday-rotation as well as paramagnetic films with negligible Faraday-rotation are produced by variations of the rare earth ion substitutions. The temperature dependence of Faraday-rotation is fitted with a molecular field model. Optical rib waveguides in single and double layer garnet films with different Faraday-rotations are realized. The nonreciprocal phase shift of the TM0-Mode is studied both theoretically and experimentally at a wavelength of 1.3 μm. Results show that the maximum nonreciprocal effect at room temperature of double layer films with opposite Faraday-rotation is 1.6 times as large as that of comparable single layer waveguides. But, because of the large temperature dependence of the Faraday-rotation of the positive rotating films, these waveguides show a large temperature dependence of the nonreciprocal phase shift. This problem can be avoided if the positive rotating layer is replaced by a paramagnetic layer. Agreement between calculations and measurements is excellent.

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The linear relationship of spin pumping energy in a La:YIG/Pt heterostructure used in a microwave rectifier

MRS Advances ◽

10.1557/adv.2019.8 ◽

2019 ◽

Vol 4 (09) ◽

pp. 553-558 ◽

Cited By ~ 1

Author(s):

Yiheng Rao ◽

Huaiwu Zhang ◽

Dainan Zhang ◽

Lichuan Jin ◽

Qinghui Yang ◽

...

Keyword(s):

Spin Current ◽

Device Fabrication ◽

Basic Material ◽

Gadolinium Gallium Garnet ◽

Spin Pumping ◽

Garnet Films ◽

Iron Garnet ◽

Relationship Of ◽

Spin Detection ◽

Current Energy

ABSTRACTLa3+ doped yttrium iron garnet films have been grown on (111) oriented gadolinium gallium garnet substrates via Liquid phase epitaxy technique as a basic material for ISHE device fabrication. Pt as a material with a large spin hall angle was used as a spin detection layer. We investigated the dependence of the spin pumping effect on the power and frequency of the excitation microwaves in La:YIG/Pt bilayers by measuring the ISHE voltage. We demonstrated that the area under the ISHE curve(SISHE) across a wide power range had a nearly linear correlation with the input microwave power (Pin). The parameter SISHE can be used to describe the spin current energy in a Pt layer which can be a useful parameter for a microwave rectifier.

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