Publication 2021

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National Institute for Material Science

Publication 2021

* The articles written in black are Original Papers, those indicated in grey are Conference Proceedings. The articles written in green are Review Papers or Book Chapters.
* Sorted by Research Fields.
Magnetic Materials / Spintronic Materials / Spin Caloritronics / Nanostructure Analysis / Other Fields

Magnetic Materials:

  1. Relationship between the microstructure, local magnetism and coercivity in Ga-containing Nd-Fe-B sintered magnets
    D. Billington, H. Okazaki, K. Toyoki, Y. Kotani, Y. Takada, T. Sato, Y. Kaneko, A. Kato, T.T. Sasaki, T. Ohkubo, K. Hono, T. Nakamura, Acta Mater. 205, 116517 (2021).

  2. Origin of coercivity in an anisotropic Sm(Fe,Ti,V)12-based sintered magnet
    J.S. Zhang, X. Tang, H. Sepehri-Amin, A.K. Srinithi, T. Ohkubo and K. Hono, Acta Mater. 217, 117161 (2021).

  3. Recent advances in SmFe12-based permanent magnets
    Y.K. Takahashi, H. Sepehri-Amin, T. Ohkubo, Sci. Tech. Adv. Mater. 22, 449-460 (2021).

  4. 熱間加工ネオジム磁石の粒界拡散法による高特性化
    Improvement of Magnetic Property in Bulk Hot-Deformed Nd-Fe-B Magnets by New Grain Boundary Diffusion Processes（"Technical Review" in Japanese）
    K. Hioki, T. Akiya, A. Hattori, X. Tang, H. Sepehri-Amin, T. Ohkubo and K. Hono, 電気製鋼 Vol.92 No.1,【技術解説】11-18 (2021).

  5. Most frequently asked questions about the coercivity of Nd-Fe-B permanent magnets [Click here to download PDF (*This article is open access.)]
    J. Li, H. Sepehri-Amin, T. Sasaki, T. Ohkubo and K. Hono, Sci. Tech. Adv. Mater. 22, 386-403 (2021).

  6. Dependence of the Growth Mode in Epitaxial FePt Films on Surface Free Energy
    I. Suzuki, S. Kubo, H. Sepehri-Amin, and Y.K. Takahashi, ACS Appl. Mater. Interfaces 13, 16620−16627 (2021).

  7. Prospects for the development of SmFe12-based permanent magnets with a ThMn12-type phase
    P. Tozman, H. Sepehri-Amin, K. Hono, Scr. Mater. 194, 113686 (2021).

  8. SmFe12-based hard magnetic alloys prepared by reduction-diffusion process
    I. Dirba, H. Sepehri-Amin, I-J. Choi, J-H. Choi, H-S. Uh, T-H. Kim, S-J. Kwon, T. Ohkubo, K. Hono, J. Alloys Compd. 861, 157993 (2021).

  9. 新規ThMn12系希土類磁石の現状と展望
    小川大介、平山悠介、高橋有紀子、嶋敏之、まぐね 16, 51 (2021)

  10. Heating rate dependence of coercivity and microstructure of Fe-B-P-Cu nanocrystalline soft magnetic materials
    Y. Nomura, J. Uzuhashi, T. Tomita, T. Takahashi, H. Kuwata, T. Abe, T. Ohkubo, K. Hono, J. Alloys Compd. 859, 157832 (2021).

  11. Intrinsic hard magnetic properties of Sm(Fe,Co)12-xTix compound with ThMn12 structure
    A. Makurenkova, D. Ogawa, P. Tozman, S. Okamoto, S. Nikitin, S. Hirosawa, K. Hono, Y.K. Takahashi, J. Alloys Compd. 861, 158477 (2021).

  12. (Pr0.75Ce0.25)-Fe-B hot-deformed magnets for cryogenic applications
    X. Tang, J. Lai, H. Sepehri-Amin, T. Ohkubo, K. Hono, Scr. Mater. 194, 113648 (2021).

  13. Improved coercivity and squareness in bulk hot-deformed Nd–Fe–B magnets by two-step eutectic grain boundary diffusion process
    X. Tang, J. Li, H. Sepehri-Amin, T. Ohkubo, K. Hioki, A. Hattori, K. Hono, Acta Mater. 203, 116479 (2021).

  14. Intrinsic magnetic properties of (Sm,Gd)Fe12-based compounds with minimized addition of Ti
    P. Tozman, H. Sepehri-Amin, T. Ohkubo, K. Hono, J. Alloys Compd. 855, 157491 (2021).

Spintronic Materials:

  1. Nonlinear behavior due to electron-magnon interaction in tunnel junction
    S. Iwakiri, S. Sugimoto, Y. Niimi, Y. Kozuka, Y.K. Takahashi, S. Kasai, K. Kobayashi, Phys. Rev. B 103, 245427 (2021).

  2. Mössbauer spectroscopy with polarized synchrotron beams at Fe/Au (111) interface
    J. Okabayashi, S. Li, S. Sakai, Y. Kobayashi, K. Fujiwara, T. Mitsui and S. Mitani, Hyperfine Interact. 242, 59-1-8 (2021).

  3. Spin-orbit torque driven magnetization switching in W/CoFeB/MgO-based type-Y three terminal magnetic tunnel junctions
    S. Isogami, Y. Shiokawa, A. Tsumita, E. Komura, Y. Ishitani, K. Hamanaka, T. Taniguchi, S. Mitani, T. Sasaki and M. Hayashi, Sci. Rep. 11, 16676-1-8 (2021).

  4. First-principles disordered local-moment study on temperature dependence of spin polarization in Co2Fe(Ga0.5Ge0.5) Heusler alloy
    I. Kurniawan, K. Nawa, K. Masuda, Y. Miura, and K. Hono, Acta Mater. 218, 117218 (2021).

  5. Crucial role of interfacial s-d exchange interaction in the temperature dependence of tunnel magnetoresistance
    K. Masuda, T. Tadano, and Y. Miura, Phys. Rev. B 104, L180403 (2021).

  6. First-principles calculations on the spin anomalous Hall effect of ferromagnetic alloys
    Y. Miura and K. Masuda, Phys. Rev. Materials 5, L101402 (2021).

  7. Enhanced Magnetoresistance under Bias Voltage in Fe/MgO/MgAl2O4/MgO/Fe Trilayer Tunneling Barrier Junction
    K. Nawa, K. Masuda, and Y. Miura, Phys. Rev. Appl. 16, 044037 (2021).

  8. Spin-scattering asymmetry at half-metallic-ferromagnet|ferromagnet interface
    Y. Fujita, Y. Miura, T. Sasaki, T. Nakatani, K. Hono, and Y. Sakuraba, Phys. Rev. B 104, L140403 (2021).

  9. Analysis method of a spin-torque oscillator using dc resistance change during injection locking to an external microwave magnetic field
    N. Asam, H. Suto, S. Tamaru, H. Sepehri-Amin, A. Bolyachkin, T. Nakatani, W. Zhou, H. Kubota, and Y. Sakuraba, Appl. Phys. Lett. 119, 142405 (2021).

  10. Systematic investigation of the effect of layer thickness on the linear sensing characteristics of asymmetric structured CoFe/Rh/CoFe/Cu/CoFe fully epitaxial CIP-GMR based linear magnetic sensors
    D. Taparia, K.B. Fathoni, P.D. Kulkarni, A. Srinivasan, P. Alagarsamy, Y. Sakuraba, T. Nakatani, K. Hono, J. Magn. Magn. Mater. 538, 168321 (2021).

  11. Spin Hall effect in a spin-1 chiral semimetal
    K. Tang, Y-C. Lau, K. Nawa, Z. Wen, Q. Xiang, H. Sukegawa, T. Seki, Y. Miura, K. Takanashi, and S. Mitani, Phys. Rev. Research 3, 033101 (2021).

  12. Observation of nonlinear spin-charge conversion in the thin film of nominally centrosymmetric Dirac semimetal SrIrO3 at room temperature
    Y. Kozuka, S. Isogami, K. Masuda, Y. Miura, S. Das, J. Fujioka, T. Ohkubo, S. Kasai, Phys. Rev. Lett. 126, 236801 (2021).

  13. Deterministic influence of substrate-induced oxygen vacancy diffusion on Bi2WO6 thin film growth
    S. Das, T. Ohkubo, S. Kasai, Y. Kozuka, Cryst. Growth Des. 21, 625-630 (2021).

  14. Quantum-well tunneling anisotropic magnetoresistance above room temperature
    M. Al-Mahdawi, Q. Xiang, Y. Miura, M. Belmoubarik, K. Masuda, S. Kasai, H. Sukegawa, and S. Mitani, Phys. Rev. B 103, L180408 (2021).

  15. Effects of (Ni0.8Fe0.2)100−xCrx seed layer on microstructure, magnetic properties, and giant magnetoresistance of [FeCoNi/Cu] multilayer films
    P.D. Kulkarni, T. Nakatani, T. Sasaki, and Y. Sakuraba, J. Appl. Phys. 129, 213901 (2021).

  16. Direct observation of spin-resolved valence band electronic states from a buried magnetic layer with hard X-ray photoemission
    S. Ueda & Y. Sakuraba, Sci. Tech. Adv. Mater. 22, 317-325 (2021).

  17. Spin-Polarized Positronium Time-of-Flight Spectroscopy for Probing Spin-Polarized Surface Electronic States
    M. Maekawa, A. Miyashita, S. Sakai, S. Li, S. Entani, A. Kawasuso, and Y. Sakuraba, Phys. Rev. Lett. 126, 186401 (2021).

  18. Analysis of an all-in-plane spin-torque oscillator using injection locking to an external microwave magnetic field
    H. Suto, H. Sepehri-Amin, N. Asam, W. Zhou, A. Bolyachkin, M. Takagishi, N. Narita, S. Tamaru, T. Nakatani and Y. Sakuraba, Appl. Phys. Express 14, 053001 (2021).

  19. Large linear sensitivity of asymmetric structured giant magnetoresistive device with metastable bcc-Cu spacer and auxiliary biquadratic coupling through Rh spacer
    D. Taparia, K.B. Fathoni, P.D. Kulkarni, A. Srinivasan, P. Alagarsamy, Y. Sakuraba, T. Nakatani, T. Sasaki and K. Hono, J. Phys. D: Appl. Phys. 54, 255004 (2021).

  20. Elucidation of the strong effect of an interfacial monolayer on magnetoresistance in giant magnetoresistive devices with current perpendicular to the plane
    B. Büker, J.W. Jung, T. Sasaki, Y. Sakuraba, Y. Miura, T. Nakatani, A. Hütten, and K. Hono, Phys. Rev. B 103, L140405 (2021).

  21. Heusler alloys for spintronic devices: Review on recent development and future perspectives
    K. Elphick, W. Frost, M. Samiepour, T. Kubota, K. Takanashi, H. Sukegawa, S. Mitani and A. Hirohata, Sci. Tech. Adv. Mater. 22, 235 (2021).

  22. Perpendicular magnetic anisotropy at Fe/Au(111) interface studied using Mossbauer, x-ray absorption, and photoemission spectroscopies
    J. Okabayashi, S. Li, S. Sakai, Y. Kobayashi, T. Mitsui, K. Tanaka and S. Mitani, Phys. Rev. B 103, 104435 (2021).

  23. Growth, strain, and spin-orbit torques in epitaxial Ni-Mn-Sb films sputtered on GaAs
    N. Zhao, A. Sud, H. Sukegawa, S. Komori, K. Rogdakis, K. Yamanoi, J. Patchett, J. W. A. Robinson, C. Ciccarelli, H. Kurebayashi, Phys. Rev. Materials 5, 014413 (2021).

  24. Interfacial giant tunnel magnetoresistance and bulk-induced large perpendicular magnetic anisotropy in (111)-oriented junctions with fcc ferromagnetic alloys: A first-principles study
    K. Masuda, H. Itoh, Y. Sonobe, H. Sukegawa, S. Mitani, and Y. Miura, Phys. Rev. B 103, 064427 (2021).

  25. Magnetization switching induced by spin-orbit torque from Co2MnGa magnetic Weyl semimetal thin films
    K. Tang, Z. Wen, Y-C. Lau, H. Sukegawa, T. Seki, and S. Mitani, Appl. Phys. Lett. 118, 062402 (2021).

  26. Exceeding 400% tunnel magnetoresistance at room temperature in epitaxial Fe/MgO/Fe(001) spin-valve-type magnetic tunnel junctions
    T. Scheike, Q. Xiang, Z. Wen, H. Sukegawa, T. Ohkubo, K. Hono, and S. Mitani, Appl. Phys. Lett. 118, 042411 (2021).

  27. Magnetic, magnetoresistive and low-frequency noise properties of tunnel magnetoresistance sensor devices with amorphous CoFeBTa soft magnetic layers
    M. Rasly, T. Nakatani, J. Li, H. Sepehri-Amin, H. Sukegawa and Y. Sakuraba, J. Phys. D: Appl. Phys. 54, 095002 (2021).

Spin Caloritronics:

  1. 磁性材料を用いた“横型”熱電効果の研究の進展と展望 ～クリーンエネルギー創出とエネルギー高効率利用に資する新技術を目指して～
    桜庭裕弥、周偉男、内田健一、クリーンエネルギー 30, 51-57 (2021).

  2. ロックイン熱計測が拓くスピンカロリトロニクスの物理・材料研究
    内田健一、井口亮、熱測定 48, 100-107 (2021).

  3. Probing thermal magnon current mediated by coherent magnon via nitrogen-vacancy centers in diamond
    D. Prananto, Y. Kainuma, K. Hayashi, N. Mizuochi, K. Uchida, and T. An, Phys. Rev. Applied 16, 064058 (2021).

  4. A perspective on two-dimensional van der Waals opto-spin-caloritronics
    M.H. Phan, M.T. Trinh, T. Eggers, V. Kalappattil, K. Uchida, L.M. Woods, and M. Terrones, Appl. Phys. Lett. 119, 250501 (2021).

  5. スピンカロリトロニクスにおける界面効果
    内田健一、関剛斎, 表面と真空 64, 562-567 (2021).

  6. ゼーベック駆動横型熱電効果
    周偉男、山本薫、内田健一、桜庭裕弥, まぐね 16, 312-318 (2021).

  7. Three-dimensional bulk Fermi surfaces and Weyl crossings of Co2MnGa thin films underneath a protection layer
    T. Kono, M. Kakoki, T. Yoshikawa, X. Wang, K. Sumida, T. Muro, K. Goto, Y. Sakuraba, R.Y. Umetsu, and A. Kimura, Phys. Rev. B 104, 195112 (2021).

  8. Spintronic thermal management
    K. Uchida, and R. Iguchi, J. Phys. Soc. Jpn. 90, 122001 (2021).

  9. High-throughput imaging measurements of thermoelectric figure of merit
    A. Alasli, A. Miura, R. Iguchi, H. Nagano, and K. Uchida, Sci. Tech. Adv. Mater.: Methods 1, 162-168 (2021).

  10. Spin Hall effect in a non-equilibrium Cu76Ir24 alloy measured at various temperature
    H. Masuda, AR. Modak, T. Seki, K. Uchida, Y.-C. Lau, J. Nitta, and K. Takanashi, AIP Adv. 11, 095221 (2021).

  11. Simultaneous harvesting of radiative cooling and solar heating for transverse thermoelectric generation
    S. Ishii, A. Miura, T. Nagao, and K. Uchida, Sci. Tech. Adv. Mater. 22, 441-448 (2021).

  12. Lock-in thermoreflectance as a tool for investigating spin caloritronics
    T. Yamazaki, R. Iguchi, H. Nagano, and K. Uchida, J. Phys. D: Appl. Phys. 54, 354001 (2021).

  13. Phenomenological analysis of transverse thermoelectric generation and cooling performance in magnetic/thermoelectric hybrid systems
    K. Yamamoto, R. Iguchi, A. Miura, W. Zhou, Y. Sakuraba, Y. Miura, and K. Uchida, J. Appl. Phys. 129, 223908 (2021).

  14. Temperature dependence of anisotropic magneto-Seebeck effect in NiPt alloys
    T. Hirai, R. Modak, A. Miura, T. Seki, K. Takanashi, and K. Uchida, Appl. Phys. Express 14, 073001 (2021).

  15. Local heat emission due to unidirectional spin-wave heat conveyer effect observed by lock-in thermography
    Y. Kainuma, R. Iguchi, D. Prananto, V. I. Vasyuchka, B. Hillebrands, T. An, and K. Uchida, Appl. Phys. Lett. 118, 222404 (2021).

  16. Magneto-optical design of anomalous Nernst thermopile
    J. Wang, A. Miura, R. Modak, Y.K. Takahashi & K. Uchida, Sci. Rep. 11, 11228 (2021).

  17. Theory of Transport in Ferroelectric Capacitors
    G. E. W. Bauer, R. Iguchi, and K. Uchida, Phys. Rev. Lett. 126, 187603 (2021).

  18. Origin of negative anomalous Nernst thermopower in Mn-Ga ordered alloys
    W. Zhou, K. Masuda, and Y. Sakuraba, Appl. Phys. Lett. 118, 152406 (2021).

  19. Transverse thermoelectric generation using magnetic materials
    K. Uchida, W. Zhou, and Y. Sakuraba, Appl. Phys. Lett. 118, 140504 (2021).

  20. Combinatorial tuning of electronic structure and thermoelectric properties in Co2MnAl1−xSix Weyl semimetals
    R. Modak, K. Goto, S. Ueda, Y. Miura, K. Uchida, and Y. Sakuraba, APL Mater. 9, 031105 (2021).

  21. Anomalous Hall and Nernst effects in ferrimagnetic Mn4N films: Possible interpretations and prospects for enhancement
    S. Isogami, K. Masuda, Y. Miura, N. Rajamanickam, and Y. Sakuraba, Appl. Phys. Lett. 118, 092407 (2021).

  22. Transport phenomena in spin caloritronics
    K. Uchida, Proc. Jpn. Acad. Ser. B. 97, 69-88 (2021).

  23. Seebeck-driven transverse thermoelectric generation
    W. Zhou, K. Yamamoto, A. Miura, R. Iguchi, Y. Miura, K. Uchida, and Y. Sakuraba, Nat. Mater. 20, 463–467 (2021).

  24. Above-room-temperature giant thermal conductivity switching in spintronic multilayers
    H. Nakayama, B. Xu, S. Iwamoto, K. Yamamoto, R. Iguchi, A. Miura, T. Hirai, Y. Miura, Y. Sakuraba, J. Shiomi, and K. Uchida, Appl. Phys. Lett. 118, 042409 (2021).

  25. Strain-induced cooling-heating switching of anisotropic magneto-Peltier effect
    T. Hirai, H. Sepehri-Amin, K. Hasegawa, T. Koyama, R. Iguchi, T. Ohkubo, D. Chiba, and K. Uchida, Appl. Phys. Lett. 118, 022403 (2021).

  26. Enhancement of the anomalous Nernst effect in Ni/Pt superlattices
    T. Seki, Y. Sakuraba, K. Masuda, A. Miura, M. Tsujikawa, K. Uchida, T. Kubota, Y. Miura, M. Shirai, and K. Takanashi, Phys. Rev. B 103, L020402 (2021).

Nanostructure Analysis:

(Methods or other materials except for magnetic and spintronic materials)
  1. Toward Development of Strong and Formable Magnesium Alloy Sheets with Bake-Hardenability
    T.T. Sasaki, M.-Z. Bian, Z.H. Li, K. Hono, JOM 73, 1471–1483 (2021).

  2. Room-temperature stretch formability, tensile properties, and microstructures of precipitation hardenable Mg-6Zn-0.2Ca (mass%) alloy sheets with micro-alloying of Ce or Y
    T. Nakata, Z.H. Li, T.T. Sasaki, K. Hono, and S. Kamado, Mater. Sci. Eng. A 804, 140563 (2021).

  3. Effects of Grain Boundary Geometry and Boron Addition on the Local Mechanical Behavior of Interstitial-Free (IF) Steels
    K. Endo, S. Ii, Y. Kimura, T.T. Sasaki, S. Goto, T. Yokota, T. Ohmura, Mater. Trans. 62, 1479-1488 (2021).

  4. Corrosion-resistant Cu-Fe-based immiscible medium-entropy alloy with tri-layer passivatione
    J. Moon, Y. Choi, T.T. Sasaki, M. Joo, H. Shin, T. Ohkubo, K. Hono, S.M. Baek, H.S. Kim, Corros. Sci. 193, 109888 (2021).

  5. Interstitial Free（IF）鋼の粒界における局所力学特性に及ぼす幾何学因子とB添加の影響
    遠藤 一輝, 井 誠一郎, 木村 勇次, 佐々木 泰祐, 後藤 聡太, 横田 毅, 大村 孝仁, 日本金属学会誌 85, 30-39 (2021).

  6. Stable field-emission from a CeB6 nanoneedle point electron source
    S. Tang, J. Tang, Y. Wu, Y-H. Chen, J. Uzuhashi, T. Ohkubo, and L-C. Qin, Nanoscale 13, 17156-17161 (2021).

  7. A stable LaB6 nanoneedle field-emission point electron source
    S. Tang, J. Tang, J. Uzuhashi, T. Ohkubo, W. Hayami, J. Yuan, M. Takeguchi, M. Mitome and L-C. Qin, Nanoscale Adv. 3, 2787-2792 (2021).

  8. Impact of oxygen on band structure at the Ni/GaN interface revealed by hard X-ray photoelectron spectroscopy
    H. Mizushima, R. Arai, Y. Inaba, S. Yamashita, Y. Yamaguchi, Y. Kanitani, Y. Kudo, T. Hamaguchi, R. Koda, K. Yanashima, T. Ohkubo, K. Hono, and S. Tomiya, Appl. Phys. Lett. 118, 121603 (2021).

  9. X-ray diffraction and in situ pressurization of dentine apatite nanocrystals quantifies modulus stiffening upon carbonate removal
    J-B. Forien, J. Uzuhashi, T. Ohkubo, K. Hono, L. Luo, H.P Schwarcz, A.C Deymier, C. Krywka, C. Fleck, P. Zaslansky, Acta Biomater. 120, 91-103 (2021).

  10. Quantitative analysis of sulfur segregation at the oxide/substrate interface in Ni-Base single crystal superalloy
    C. Tabata, K. Kawagishi, J. Uzuhashi, T. Ohkubo, K. Hono, T. Yokokawa, H. Harada, S. Suzuki, Scr. Mater. 194, 113616 (2021).

Other Fields:

  1. Interplay of spin-orbit coupling and Coulomb interaction in ZnO-based electron system
    D. Maryenko, M. Kawamura, A. Ernst, V. K. Dugaev, E. Ya. Sherman, M. Kriener, M. S. Bahramy, Y. Kozuka, M. Kawasaki, Nat. Commun. 12, 3180 (2021).

  2. Evolutionary search for cobalt-rich compounds in the yttrium-cobalt-boron system
    T. Ishikawa, T. Fukazawa, G. Xing, T. Tadano, and T. Miyake, Phys. Rev. Materials 5, 054408 (2021).

  3. Exploring diamondlike lattice thermal conductivity crystals via feature-based transfer learning
    S. Ju, R. Yoshida, C. Liu, K. Hongo, T. Tadano, and J. Shiomi, Phys. Rev. Materials 5, 053801 (2021).

  4. Lattice dynamics effects on finite-temperature stability of R1−xFex (R = Y, Ce, Nd, Sm, and Dy) alloys from first principles
    G. Xing, T. Ishikawa, Y. Miura, T. Miyake, and T. Tadano, J. Alloys Compd. 874, 159754 (2021).

  5. Reversible 3D-2D structural phase transition and giant electronic modulation in nonequilibrium alloy semiconductor, lead-tin-selenide
    T. Katase, Y. Takahashi, X. He, T. Tadano, K. Ide, H. Yoshida, S. Kawachi, J. Yamaura, M. Sasase, H. Hiramatsu, H. Hosono, and T. Kamiya, Sci. Adv. 7, eabf2725 (2021).

  6. Effect of Halogen Ions on the Low Thermal Conductivity of Cesium Halide Perovskite
    S. Kawano, T. Tadano, and S. Iikubo, J. Phys. Chem. C 125, 91–97 (2021).

  7. RESPACK: An ab initio tool for derivation of effective low-energy model of material
    K. Nakamura, Y. Yoshimoto, Y. Nomura, T. Tadano, M. Kawamura, T. Kosugi, K. Yoshimi, T. Misawa, and Y. Motoyama, Comput. Phys. Commun. 261, 107781 (2021).
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