Nanometer-Thick Yttrium Iron Garnet Films with Perpendicular Anisotropy and Low Damping

Ding, Junwei; Liu, Chuan‐Pu; Zhang, Yuejie; Erugu, Uppalaiah; Quan, Zheng‐Jun; Yu, Rui; McCollum, Ethan; Mo, Songyu; Yang, Sheng; Ding, Hongwei; Xu, Xin; Tang, Jinke; Yang, Xiaofei; Wu, Mingzhong

doi:10.1103/physrevapplied.14.014017

Cited by 61 publications

(37 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This indicates that easy axis magnetization is out of plane (i.e., PMA) for the films deposited on GGG(111) substrate and it is in-plane for the films deposited on GGG(100) substrate. The observed peak to peak lines width (∆H pp ) for studied samples are found to be larger as compared to the pure YIG films [24][25][26] . This indicate in the studied Ce:YIG samples have higher magnetic damping as also expected due to lattice dilation and different environments of the Fe cations due to the Ce doping 9,27 .…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Robust perpendicular magnetic anisotropy in Ce substituted yttrium iron garnet epitaxial thin films

Kuila,

Sagdeo,

Longchar

et al. 2021

Preprint

View full text Add to dashboard Cite

Cerium substituted yttrium iron garnet (Ce:YIG) epitaxial thin films are prepared on gadolinium gallium garnet (GGG) substrate with pulsed laser deposition (PLD). It is observed that the films grown on GGG(111) substrate exhibit perpendicular magnetic anisotropy (PMA) as compared to films grown on GGG(100) substrate. The developed PMA is confirmed from magneto-optical Kerr effect, bulk magnetization and ferromagnetic resonance measurements. Further, the magnetic bubble domains are observed in the films exhibiting PMA. The observations are explained in terms of the growth direction of Ce:YIG films and the interplay of various magnetic anisotropy terms. The observed PMA is found to be tunable with thickness of the film and a remarkable temperature stability of the PMA is observed in all the studied films of Ce:YIG deposited on GGG(111) substrate.

show abstract

Section: Resultsmentioning

confidence: 99%

“…5). The anisotropy K U is related through the equation K U = (H K M S )/2 24 . The observed value of K U of the three studied PMA films are tabulated in the table-II.…”

Section: Resultsmentioning

confidence: 99%

Robust perpendicular magnetic anisotropy in Ce substituted yttrium iron garnet epitaxial thin films

Kuila,

Sagdeo,

Longchar

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…In this study, the small uniaxial magnetic anisotropy effect K u was added to the simulation since it can be present in magnetic materials used in thin film MC. Earlier experimental studies showed that in thin YIG films, perpendicular magnetic anisotropy could arise due to lattice strain [29] and in permalloy, growth-induced anisotropy emerges due to off stoichiometry [30].…”

Section: Methodsmentioning

confidence: 99%

Engineered Magnetization Dynamics of Magnonic Nanograting Filters

2021

View full text Add to dashboard Cite

Magnonic crystals and gratings could enable tunable spin-wave filters, logic, and frequency multiplier devices. Using micromagnetic models, we investigate the effect of nanowire damping, excitation frequency and geometry on the spin wave modes, spatial and temporal transmission profiles for a finite patterned nanograting under external direct current (DC) and radio frequency (RF) magnetic fields. Studying the effect of Gilbert damping constant on the temporal and spectral responses shows that low-damping leads to longer mode propagation lengths due to low-loss and high-frequency excitations are also transmitted with high intensity. When the nanowire is excited with stronger external RF fields, higher frequency spin wave modes are transmitted with higher intensities. Changing the nanowire grating width, pitch and its number of periods helps shift the transmitted frequencies over super high-frequency (SHF) range, spans S, C, X, Ku, and K bands (3–30 GHz). Our design could enable spin-wave frequency multipliers, selective filtering, excitation, and suppression in magnetic nanowires.

show abstract

“…Though not shown in the figure, the film exhibited a surface roughness of only 0.08 nm, a coercivity of only 0.18 Oe, and a saturation induction of 1778 G, which is very close to the bulk value. [32], [36]. (a) FMR linewidth vs. frequency data obtained on a 75-nm-thick YIG film grown on a Gd3Ga5O12 substrate.…”

Section: A Sputtering Growth Of Yig Thin Films With Low Damping and P...mentioning

confidence: 99%

“…This self-biasing can significantly facilitate device design and fabrication. Ding, Liu, and Zhang et al recently succeeded in the development of such YIG films [36] (previous investigations of higher-damping PMA YIG films can be found in [37]). The YIG films in a thickness range of 4-30 nm were deposited by sputtering at room temperature first and then annealed in O2 at high temperature, the same as for the above-described YIG film.…”

Section: A Sputtering Growth Of Yig Thin Films With Low Damping and P...mentioning

confidence: 99%

Advances in Magnetics Roadmap on Spin-Wave Computing

et al. 2022

View full text Add to dashboard Cite

Magnonics addresses the physical properties of spin waves and utilizes them for data processing. Scalability down to atomic dimensions, operation in the GHz-to-THz frequency range, utilization of nonlinear and nonreciprocal phenomena, and compatibility with CMOS are just a few of many advantages offered by magnons. Although magnonics is still primarily positioned in the academic domain, the scientific and technological challenges of the field are being extensively investigated, and many proof-of-concept prototypes have already been realized in laboratories. This roadmap is a product of the collective work of many authors that covers versatile spin-wave computing approaches, conceptual building blocks, and underlying physical phenomena. In particular, the roadmap discusses the computation operations with Boolean digital data, unconventional approaches like neuromorphic computing, and the progress towards magnon-based quantum computing. The article is organized as a collection of sub-sections grouped into seven large thematic sections. Each sub-section is prepared by one or a group of authors and concludes with a brief description of current challenges and the outlook of further development for each research direction.

show abstract

Nanometer-Thick Yttrium Iron Garnet Films with Perpendicular Anisotropy and Low Damping

Cited by 61 publications

References 56 publications

Robust perpendicular magnetic anisotropy in Ce substituted yttrium iron garnet epitaxial thin films

Robust perpendicular magnetic anisotropy in Ce substituted yttrium iron garnet epitaxial thin films

Engineered Magnetization Dynamics of Magnonic Nanograting Filters

Advances in Magnetics Roadmap on Spin-Wave Computing

Contact Info

Product

Resources

About