Effect of inhomogeneous Dzyaloshinskii-Moriya interaction on antiferromagnetic spin-wave propagation

Lee, Seung-Jae; Lee, Dong Kyu; Lee, Kyung Jin

doi:10.1103/physrevb.101.064422

Cited by 11 publications

(6 citation statements)

References 83 publications

(86 reference statements)

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“…The theoretical results were swiftly validated by experiments [100]. Subsequent studies on the effects of the DMI on spin wave dynamics mainly include the propagation, reflection, and refraction of spin waves in HM/FM bilayer films [111,124,[136][137][138][139][140][141], the interactions between spin waves and chiral DWs or skyrmions [126,127,[142][143][144][145][146][147][148], and the propagation of spin waves under a non-uniform DMI [149][150][151], including magnonic crystals [149,150] and antiferromagnetic spin waves [127,151].…”

Section: Effects Of the Idmi On The Spin Wave Transportmentioning

confidence: 91%

“…). Further study of the effect of the non-uniform DMI on antiferromagnetic spin waves was carried out [151]. The amplitude of the spin wave will be modulated similar to that in ferromagnetism.…”

Section: Realized (Figures 12(c)-(f)mentioning

confidence: 97%

“…In addition to the uniform DMI, the propagation of spin waves under a non-uniform DMI has also garnered significant attention [149][150][151]. The effect of spatial modulation DMI on the propagation of spin waves was theoretically studied.…”

Section: Effects Of the Idmi On The Spin Wave Transportmentioning

confidence: 99%

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Effects of interfacial Dzyaloshinskii–Moriya interaction on magnetic dynamics

Shen¹,

Li²,

Zhang³

et al. 2021

J. Phys. D: Appl. Phys.

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In the “Beyond Moore” era, the information device is expected to exhibit advantages including small sizes, high processing speed, and low power and dissipation. The novel magnetic information device with these advantages is made of heavy metal(HM)/ferromagnet (FM) composite. Owing to the asymmetric structure, the anisotropic exchange coupling named the interfacial Dzyaloshinskii–Moriya interaction (iDMI) is generated at the HM/FM interface. This iDMI influences the magnetic dynamics including ferromagnetic resonance (FMR), spin wave, and the motion of chiral DWs. These magnetic dynamic behaviors are the bases of the functions of novel magnetic information devices. Therefore, the influence of iDMI on the magnetic dynamics has attracted wide attention in recent years. In this topical review, we give a detailed introduction and discussion about recent investigation on the iDMI-relevant magnetic dynamics of the HM/FM bilayer system. This review consists of five sections: (1). the introduction about the background, the basic theory of magnetic dynamics and DMI; (2). the review about the effect of iDMI on the propagation of spin wave. Owing to the iDMI, the dispersion relationship of spin wave is asymmetric. This not only offers a precise method for measuring the iDMI constant, but also gives rise to potential application for novel magnonic devices. (3). the review about the effect of iDMI on the FMR. Unique iDMI-relevant mode was observed in the FMR spectra owing to the nonparallel alignment of magnetic moments. (4). the review about the motion of DWs with chiral structure due to iDMI. The iDMI plays a fundamental role in the high velocity of the chiral DWs. Meanwhile, the iDMI results in the tilting of DW plane, and the mechanism has been widely investigated. The tilting of the DW plane may be depressed by the interlayer exchange coupling. (5). finally, we summarize the review and give an outlook.

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Section: Effects Of the Idmi On The Spin Wave Transportmentioning

confidence: 91%

Section: Realized (Figures 12(c)-(f)mentioning

confidence: 97%

See 1 more Smart Citation

Effects of interfacial Dzyaloshinskii–Moriya interaction on magnetic dynamics

Shen¹,

Li²,

Zhang³

et al. 2021

J. Phys. D: Appl. Phys.

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“…In 2001, Nikitov et al [74] studied the transmission coefficients of magnons in the MCs constructed by two alternate magnetic materials, and first proposed the concept of MCs. There are many types of MCs because several magnetic parameters can be changed, such as saturation magnetization [75,76], depths or widths of grooves [77][78][79][80], widths of waveguides [81,82], temperature [83], DMI strength [84,85] and exchange bias field [86], etc. In addition, there are three-dimensional MCs [87,88].…”

Section: Mcsmentioning

confidence: 99%

Electron and magnon resonant tunneling: materials, physics and devices

Han

Tao

et al. 2023

J. Phys. D: Appl. Phys.

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Resonant tunneling originally refers to electron tunneling through the resonant states of double-barrier potentials with a series of sharply peaked transmission coefficients (close to unity) at certain energies. Electron resonant tunneling can be used to design promising electronic devices such as resonant tunneling diode. If the quantum well states are spin-dependent, the electron resonant tunneling would exhibit spin-polarized or spin-selective properties, as observed in the double magnetic tunnel junctions with a thin intercalary ferromagnetic layer. As a result of the quantum wave-particle duality, resonant tunneling can be further expanded to magnons—the quanta of spin waves, which opens up a new avenue of research—magnon resonant tunneling. Because of the bosonic nature and macroscopic quantum coherence, the magnon RT may occur in a wide spectrum and temperature range (room temperature and above room temperature), while the electron RT typically occurs around the Fermi level and at low temperature or around room temperature. Here, we review the recent advances in resonant tunneling physics of electron and magnon, and outline possible device implications.

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“…Additionally, oxidation allows tailoring the value and the sign of Dzyaloshinskii-Moriya interaction (DMI) 27,28 . The local DMI modification offers new insights regarding the magnetic properties and may improve the performance of magnetic thin films in spintronic and magnonic devices 29,30 . Therefore, it is important to develop a method for local oxidation, in which the magnetic properties can be modified without introducing strong surface damage.The magnetic patterning method needs to be established for a layered system that meets the material requirements for the applications mentioned above.…”

mentioning

confidence: 99%

Magnetic patterning of Co/Ni layered systems by plasma oxidation

Anastaziak

Andrzejewska

Schmidt

et al. 2022

Sci Rep

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We studied the structural, chemical, and magnetic properties of Ti/Au/Co/Ni layered systems subjected to plasma oxidation. The process results in the formation of NiO at the expense of metallic Ni, as clearly evidenced by X-ray photoelectron spectroscopy, while not affecting the surface roughness and grain size of the Co/Ni bilayers. Since the decrease of the thickness of the Ni layer and the formation of NiO increase the perpendicular magnetic anisotropy, oxidation may be locally applied for magnetic patterning. Using this approach, we created 2D heterostructures characterized by different combinations of magnetic properties in areas modified by plasma oxidation and in the regions protected from oxidation. As plasma oxidation is an easy to use, low cost, and commonly utilized technique in industrial applications, it may constitute an improvement over other magnetic patterning methods.

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Effect of inhomogeneous Dzyaloshinskii-Moriya interaction on antiferromagnetic spin-wave propagation

Cited by 11 publications

References 83 publications

Effects of interfacial Dzyaloshinskii–Moriya interaction on magnetic dynamics

Effects of interfacial Dzyaloshinskii–Moriya interaction on magnetic dynamics

Electron and magnon resonant tunneling: materials, physics and devices

Magnetic patterning of Co/Ni layered systems by plasma oxidation

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