Interlayer transmission of magnons in dynamic spin valve structures

Chen, Qian; Ruan, Xuezhong; Yuan, Huang; Zhou, Xiaochao; Kou, Zhaoxia; Huang, Zhaocong; Xu, Yongbing; Zhai, Ya

doi:10.1063/1.5145182

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…In particular, the use of spin valves in magnonic devices is of limited use given the lack of studies of their dynamics. Hence, Chen et al [ 56 ] have studied the interlayer transmission of magnons in spin valve structures using the magneto-optical Kerr effect and have found that the insertion of RE layers increases the interfacial dissipation of magnons. On the other hand, Zhang et al [ 55 ] have observed a selective tuning of the Gilbert damping constant in a NiFe/Cu/CoFe spin valve by inserting different RE (Gd, Tb) nanolayers to the FM layers due to the enhanced orbital moment of Ni and Co, the spin and orbital moments of the RE, the electronic band structure of the TMs, and the lattice structure.…”

Section: Spin Valvesmentioning

confidence: 99%

Applied Trends in Magnetic Rare Earth/Transition Metal Alloys and Multilayers

González

Andrés

Antón

2021

Sensors

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Ferrimagnetic thin films formerly played a very important role in the development of information storage technology. Now they are again at the forefront of the rising field of spintronics. From new, more efficient magnetic recording media and sensors based on spin valves to the promising technologies envisaged by all-optical switching, ferrimagnets offer singular properties that deserve to be studies both from the point of view of fundamental physics and for applications. In this review, we will focus on ferrimagnetic thin films based on the combination of rare earths (RE) and transition metals (TM).

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Section: Spin Valvesmentioning

confidence: 99%

Applied Trends in Magnetic Rare Earth/Transition Metal Alloys and Multilayers

González

Andrés

Antón

2021

Sensors

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“…Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. magnetic tunnel junction and so on, have attracted extensive attention [1][2][3]. The Gilbert damping parameter α as a characteristic of magnetisation dynamics is a major focus of research due to its effect on the speed of the magnetisation reversal.…”

Section: Introductionmentioning

confidence: 99%

Simulation study of the Gilbert damping in Ni₈₀Fe₂₀/Nd bilayers: comparison with experiments

Cao,

Ruta,

Khamtawi

et al. 2024

J. Phys.: Condens. Matter

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We present an experimental and computational investigation the Neodymium thickness dependence of the effective damping constant (α_eff) in Ni80Fe20/Neodymium (Py/Nd) bilayers. The computational results show that the magnetic damping is strongly dependent on the thickness of Nd, which is in agreement with experimental data. Self consistent solutions of the spin accumulation model and the local magnetisation were used in the simulations. It was not possible to obtain agreement with experiment under the assumption of an enhanced damping in a single Py monolayer. Instead, it was found that the enhanced damping due to spin pumping needed to be spread across two monolayers of Py. This is suggested to arise from interface mixing. Subsequently, the temperature dependence of the effective damping was investigated. It is found that, with increasing temperature, the influence of thermally-induced spin fluctuations on magnetic damping becomes stronger with increasing Nd thickness.

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Surface-sensitive magnetic characterization technique for ultrathin ferromagnetic film with perpendicular magnetic anisotropy

et al. 2020

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Ultrathin ferromagnetic films display a wealth of spectacular characteristics, one of which is that two-dimensional ferromagnetism is stabilized exclusively by magnetic anisotropies. In this work, we experimentally demonstrated the realization of ultrathin yttrium iron garnet (Y3Fe5O12) films with perpendicular magnetic anisotropy by pulsed laser deposition. A labyrinthine magnetic domain configuration in Y3Fe5O12 was identified by magnetic force microscopy, qualitatively determining that the magnetic moment possesses an out-of-plane component. Magnetic moments in the Y3Fe5O12 film were investigated by using a vibrating sample magnetometer and magnetic circular dichroism spectroscopy. Due to the surface sensitivity, the characterization technique based on magnetic circular dichroism spectroscopy presents as a high-resolution magneto-optical method to determine the magnetic property quantitatively, which has an advantage over the vibrating sample magnetometer technique commonly used for bulk crystals or powders, especially when the paramagnetic background from the supporting substrate is non-negligible. Our work introduces the burgeoning material synthesis and processing technology, and miscellaneous characterization techniques into the study of conventional magnetic oxide films, providing powerful supplements to the detection and modulation of magnetism at the nanoscale.

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Interlayer transmission of magnons in dynamic spin valve structures

Abstract: This is a repository copy of Interlayer transmission of magnons in dynamic spin valve structures.

Cited by 6 publications

References 26 publications

Applied Trends in Magnetic Rare Earth/Transition Metal Alloys and Multilayers

Applied Trends in Magnetic Rare Earth/Transition Metal Alloys and Multilayers

Simulation study of the Gilbert damping in Ni₈₀Fe₂₀/Nd bilayers: comparison with experiments

Surface-sensitive magnetic characterization technique for ultrathin ferromagnetic film with perpendicular magnetic anisotropy

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Interlayer transmission of magnons in dynamic spin valve structures

Abstract: This is a repository copy of Interlayer transmission of magnons in dynamic spin valve structures.

Cited by 6 publications

References 26 publications

Applied Trends in Magnetic Rare Earth/Transition Metal Alloys and Multilayers

Applied Trends in Magnetic Rare Earth/Transition Metal Alloys and Multilayers

Simulation study of the Gilbert damping in Ni80Fe20/Nd bilayers: comparison with experiments

Surface-sensitive magnetic characterization technique for ultrathin ferromagnetic film with perpendicular magnetic anisotropy

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Product

Resources

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Simulation study of the Gilbert damping in Ni₈₀Fe₂₀/Nd bilayers: comparison with experiments