Faculty Profiles - TANIYAMA Tomoyasu

Papers - TANIYAMA Tomoyasu

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Electric field enhancement of the superconducting spin-valve effect via strain-transfer across a ferromagnetic/ferroelectric interface Reviewed

T. Kikuta, S. Komori, K. Imura, and T. Taniyama

APL Materials Vol. 12 ( 7 ) page： 071115-1 - 071115-5 2024.7

Fe/FeRh薄膜ヘテロ構造における磁気相転移誘起磁気異方性 Invited Reviewed

谷山智康, 小森祥央

まぐね Vol. 19 ( 3 ) page： 114 - 119 2024.6

Y3Fe5O12 film with multi-domain epitaxy on single-crystalline LiNbO3 substrate Reviewed

K. Yamanoi, K. Hase, S. Komori, T. Taniyama, and Yukio Nozaki

APL Materials Vol. 12 page： 021130 2024.2

Superconducting properties of bismuthate/manganite epitaxial multilayers Reviewed

S. Komori and T. Taniyama

Superconductor Science and Technology Vol. 37 page： 035018 2024.2

Artificial multiferroic heterostructures - electric field effects and their perspectives Invited Reviewed

T. Taniyama, Y. Gohda, K. Hamaya, and T. Kimura

Science and Technology of Advanced Materials 2024

Variation of Gilbert damping constant via interface induced magnetic anisotropy in LSMO/PMN-PT heterostructures Reviewed International coauthorship

A. Das, Mrinalini, T. Usami, S. P. Pati, S. Komori, T. Taniyama, V. Gorige

Journal of Alloys and Compounds 2024

Epitaxial Co2FeSi/LiNbO3 multiferroic heterostructures with a low damping constant Reviewed

Shinya Yamada, Takamasa Usami, Sachio Komori, Sekai Nagata, Yukio Nozaki, Tomoyasu Taniyama, Kohei Hamaya

INTERMAG Short Papers 2023.9

Electric field modulation of spin-flop behaviors in Co/Ru/Co/PMN-PT(011) artificial multiferroic heterostructures Reviewed

Y Hisada, S Komori, K Imura, T Taniyama

INTERMAG Short Papers 2023.9

Antiferromagnetic ordering and signatures of enhanced spin-frustration in honeycomb-layered tellurates with Ag bilayers Invited Reviewed

Sachio Komori, Kohei Tada, Noboru Taguchi, Tomoyasu Taniyama, Titus Masese

Journal of Materials Chemistry C Vol. 11 ( 33 ) page： 11213 - 11217 2023.8

Spin current driven by ultrafast magnetization of FeRh Reviewed International coauthorship

Kyuhwe Kang, Hiroki Omura, Daniel Yesudas, OukJae Lee, Kyung-Jin Lee, Hyun-Woo Lee, Tomoyasu Taniyama, Gyung-Min Choi

Nature Communications Vol. 14 ( 1 ) page： 3619 2023.6

Controllable perpendicular magnetic anisotropy in Fe/Fe100-xRhx heterostructures probed by ferromagnetic resonance Reviewed

Physical Review Applied Vol. 19 ( 6 ) page： 064077 2023.6

Interlayer coupling-dependent magnetoelastic response in synthetic antiferromagnets Reviewed

Yuichi Hisada, Sachio Komori, Keiichiro Imura, Tomoyasu Taniyama

Applied Physics Letters Vol. 122 ( 20 ) page： 202402 2023.5

Enhanced magnetic modulation at a border of magnetic ordering in La1−xSrxMnO3/BaTiO3(100) heterostructure Reviewed

Keiichiro Imura, Shota Ishikawa, Sachio Komori, Tomoyasu Taniyama

Applied Physics Letters Vol. 122 ( 20 ) page： 202402 2023.5

Electric and magnetic tuning of Gilbert damping constant in LSMO/PMN-PT(011) heterostructure Reviewed International coauthorship

Avisek Das, Mrinalini, Takamasa Usami, Satya Prakash Pati, Tomoyasu Taniyama, Venkataiah Gorige

Journal of Physics: Condensed Matter Vol. 35 ( 28 ) page： 285801 2023.4

Emergence of quasi two-Dimensional electronic states at the interface of LSMO/STO via lattice mismatch-induced strains Reviewed

S. P. Pati, T. Usami, S. Komori, and T. Taniyama

ACS Appl. Electronic Mater. Vol. 4 page： 4748 - 4754 2022.8

Zero-field routing of spin waves in a multiferroic heterostructure Reviewed International journal

Weijia Zhu, Huajun Qin, Lukáš Flajšman, Tomoyasu Taniyama, Sebastiaan van Dijken

App. Phys. Lett. Vol. 120 ( 11 ) page： 112407 - 112407 2022.3

Language：English Publishing type：Research paper (scientific journal) Publisher：AIP Publishing

We report zero-field routing of spin waves in a multiferroic heterostructure comprising a ferromagnetic Fe film and a ferroelectric BaTiO<sub>3</sub> substrate with fully correlated strain-coupled domains. In the Fe film, a regular alternation of magnetic anisotropy produces a back-and-forth rotation of uniform magnetization in zero magnetic field. Spin waves propagating across this domain structure are refracted at the magnetic domain walls because of abrupt changes in the dispersion relation and phase velocity. Using super-Nyquist sampling magneto-optical Kerr effect microscopy, we image the routing of spin waves and analyze the dependence of the effect on frequency and the propagation direction. We find that spin waves are routed efficiently by angles up to 60° without measurable loss in amplitude. The experimental results are reproduced by micromagnetic simulations and calculations based on the modified Snell's law for magnonics.

DOI： 10.1063/5.0086430

Recent Progress in Research on Interfacial Multiferroic Structures Invited Reviewed

Tomoyasu Taniyama

Magnetics Japan Vol. 17 ( 1 ) page： 35 - 41 2022.2

Optical selection rules of the magnetic excitation in the S=12 one-dimensional Ising-like antiferromagnet BaCo2V2O8 Reviewed International journal

Shojiro Kimura, Hiroaki Onishi, Akira Okutani, Mitsuru Akaki, Yasuo Narumi, Masayuki Hagiwara, Kouichi Okunishi, Koichi Kindo, Zhangzhen He, Tomoyasu Taniyama, Mitsuru Itoh

Phys. Rev. B Vol. 105 ( 1 ) page： 014417 2022.1

Electric‐Field Control of Propagating Spin Waves by Ferroelectric Domain‐Wall Motion in a Multiferroic Heterostructure Reviewed International journal

Huajun Qin, Rouven Dreyer, Georg Woltersdorf, Tomoyasu Taniyama, Sebastiaan van Dijken

Adv. Mater. Vol. 33 ( 27 ) page： 2100646 - 2100646 2021.7

Manipulation of Perpendicular Magnetic Anisotropy by Interfacial Strain: Development of Orbital Elastic Effect by Electric-Field Induced XMCD Reviewed International journal

Jun OKABAYASHI, Yoshio MIURA, Tomoyasu TANIYAMA

Vacuum and Surface Science Vol. 64 ( 5 ) page： 230 - 235 2021.5

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Papers - TANIYAMA Tomoyasu