The submicron garnet film with perpendicular magnetic anisotropy prepared by liquid phase epitaxy method

Wu, Yihao; Yang, Qinghui; Zhang, Ding; Zhang, Yuanjing; Rao, Yiheng; Wen, Qiye; Syvorotka, I.I.; Zhang, Huaiwu

doi:10.1016/j.jmmm.2020.166689

Cited by 6 publications

(4 citation statements)

References 24 publications

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“…Magnetic anisotropy is a key characteristic of magnetic materials and plays an important role in various applications, such as spin electronic devices [1][2][3][4], microelectromechanical systems [5], magnetic nanosensors [6], magnetic storage [7], and magnetic recording [8,9]. In magnetic films, the easy magnetization direction is often preferentially oriented within the plane, making it difficult to obtain films with perpendicular magnetic anisotropy, which severely limits the development of high-performance functional devices [10,11].…”

Section: Introductionmentioning

confidence: 99%

The Success of Fabrication of Pure SmFe2 Phase Film with Outstanding Perpendicular Magnetic Anisotropy

Liao,

Wang,

Shen

et al. 2024

Materials

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This study used DC magnetron sputtering technology to fabricate Sm-Fe films and systematically investigated the phase transition behavior of Sm-Fe films with different Fe ratios. It was found that at higher Fe content, the films consisted of Sm2Fe17 or SmFe7 phases; as Fe content decreased, the films were mainly composed of SmFe3 or SmFe2 phases; at higher Sm content, the films primarily consisted of Sm phase. Sm is prone to volatilization at high temperatures, so Ta was used as a capping layer to effectively suppress Sm volatilization, successfully synthesizing pure SmFe2 phase films at a nearly 1:2 ratio. The magnetic properties and magnetostrictive behavior of the SmFe2 films were investigated, revealing that pure-phase SmFe2 films exhibit good perpendicular magnetic anisotropy and magnetostriction properties. The larger stress along the perpendicular-to-film direction, resulting from the absence of substrate-induced constraints, contributes to the excellent perpendicular magnetic anisotropy of the films. This study successfully synthesized pure-phase SmFe2 films and discovered a new method for fabricating perpendicularly anisotropic films. The research findings are of great significance for the efficient synthesis of desired films with high phase formation temperatures containing volatile elements.

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Section: Introductionmentioning

confidence: 99%

The Success of Fabrication of Pure SmFe2 Phase Film with Outstanding Perpendicular Magnetic Anisotropy

Liao,

Wang,

Shen

et al. 2024

Materials

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“…A material of choice for complex SW conduits is yttrium iron garnet (YIG) in the single-crystal phase [8]. The growth of ultra-low damping YIG films has been optimized in the last decade [9][10][11][12] and the development of garnet layers is ongoing [13][14][15][16][17][18][19][20][21][22][23][24][25][26]. Hitherto, state-of-art YIG films provide high relaxation times of hundreds of nanoseconds corresponding to millimeterscale SW decay length [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Tuning of Magnetic Damping in Y3Fe5O12/Metal Bilayers for Spin-Wave Conduit Termination

et al. 2022

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In this work, we investigate the structural and dynamic magnetic properties of yttrium iron garnet (YIG) films grown onto gadolinium gallium garnet (GGG) substrates with thin platinum, iridium, and gold spacer layers. Separation of the YIG film from the GGG substrate by a metal film strongly affects the crystalline structure of YIG and its magnetic damping. Despite the presence of structural defects, however, the YIG films exhibit a clear ferromagnetic resonance response. The ability to tune the magnetic damping without substantial changes to magnetization offers attractive prospects for the design of complex spin-wave conduits. We show that the insertion of a 1-nm-thick metal layer between YIG and GGG already increases the effective damping parameter enough to efficiently absorb spin waves. This bilayer structure can therefore be utilized for magnonic waveguide termination. Investigating the dispersionless propagation of spin-wave packets, we demonstrate that a damping unit consisting of the YIG/metal bilayers can dissipate incident spin-wave signals with reflection coefficient R < 0.1 at a distance comparable to the spatial width of the wave packet.

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“…For example, deposition parameters that have been the foci of optimization studies include the choice of substrate (Hylton et al, 1993), substrate temperature (Xu et al, 2013a;Wei et al, 2020), working gas type and pressure , postdeposition annealing (Borisov et al, 2013), laser process conditions (Yu et al, 2020), and film thickness (Sun et al, 2016). Several common deposition techniques are available to obtain hexaferrite films of various crystallographic quality, including sol-gel , molecular beam epitaxy (MBE) (Liu et al, 2010), liquid phase epitaxy (LPE) (Kranov et al, 2006;Wu et al, 2020), screen printing (Chen et al, 2006), radio frequency (RF) magnetron sputtering (Zhang et al, 2010;Xu et al, 2013a;Patel et al, 2018;Abuzir et al, 2020), direct current (DC) magnetron sputtering (Zhang et al, 2014;Zhang et al, 2019), spin-coating (Meng et al, 2014a;Meng et al, 2014b), and pulsed laser deposition (PLD) (Eason, 2007). The last method has been found to be a more effective technique than other reported methods for the deposition of oxide, nitride, and carbide thin films (Eason, 2007;Wei et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Structure and Magnetization of Strontium Hexaferrite (SrFe12O19) Films Prepared by Pulsed Laser Deposition

khoo

Kameli

2021

Front. Mater.

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M-type strontium hexaferrite (SrM) thin films show excellent magnetic properties and uniaxial magnetic anisotropy. We systematically investigated the magnetism of SrM films prepared by pulsed-laser deposition on different substrates [Al2O3 (11¯02), SrTiO3 (100), ZnO (0001), and LiNbO3 (0001)] at vacuum (10−4 Pa) and a substrate temperature of 800°C. Prepared films were annealed in air at a temperature of 1,000°C for 2 hours. This investigation determined the effect of annealing and different substrates on the morphology, strain, and hysteresis loops of the films. The prepared films were characterized using x-ray diffractometry, Raman spectroscopy, scanning electron microscopy, and superconducting quantum interference device (SQUID) magnetometry. X-ray diffraction analyses confirmed c-oriented growth along the out-of-plane direction in most films. We found that annealing causes enhanced crystallization in films and a significant increase in coercivity. The highest coercivity of ∼11 KOe was measured for the film deposited on the Al2O3 (11¯02) substrate.

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The submicron garnet film with perpendicular magnetic anisotropy prepared by liquid phase epitaxy method

Cited by 6 publications

References 24 publications

The Success of Fabrication of Pure SmFe2 Phase Film with Outstanding Perpendicular Magnetic Anisotropy

The Success of Fabrication of Pure SmFe2 Phase Film with Outstanding Perpendicular Magnetic Anisotropy

Tuning of Magnetic Damping in Y3Fe5O12/Metal Bilayers for Spin-Wave Conduit Termination

Structure and Magnetization of Strontium Hexaferrite (SrFe12O19) Films Prepared by Pulsed Laser Deposition

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