Publication 2024

Publication 2024

* Sorted by Research Fields.

Magnetic Materials:

  1. Bayesian inference for peak feature extraction and prediction of material property in X-ray diffraction data
    R. Murakami, T.T. Sasaki, H. Yoshikawa, Y. Matsushita, K. Sodeyama, T. Ohkubo, H. Shinotsuka, K. Nagata, Sci. Tech. Adv. Mater.: Methods 4, 2384352 (2024).

  2. Noise reduction of electron holography observations for a thin‑foiled Nd‑Fe‑B specimen using the wavelet hidden Markov model
    S. Lee, Y. Midoh, Y. Tomita, T. Tamaoka, M. Auchi, T.T. Sasaki, Y. Murakami, Applied Microscopy 54, 4 (2024).

  3. Statistical approach based on the Stoner-Wohlfarth model for the switching field in a misoriented magnet array
    L. Donghyeon, P. Jungmin, H. Donghyeon, I. Suzuki, Y. Takahashi, N. Sujung, L. Jisung, K. Joonhyun, L. Hansaem, K. Sanghoon, Phys. Rev. Appl. 21, 024027 (2024).

  4. Effect of Curie Temperature Distributions on the User Areal Density of Heat-Assisted Magnetic Recording
    S.J. Greaves, H. Suto, Y. Nakamura, Y. Kanai, IEEE Trans. Magn. 60, 3200605 (2024).

  5. Exchange-coupled Fe-Pt/Ru/Fe-Pt nanogranular films as potential heat-assisted-magnetic-recording media with reduced writing temperature
    D. Ogawa, A. Bolyachkin, A.R. Dilipan, N. Kulesh, H.Sepehri-Amin, Y.K. Takahashi, Phys. Rev. Applied 22, 054060 (2024).

  6. Element-specific ultrafast lattice dynamics in FePt nanoparticles
    D. Turenne, I. Vaskivskyi, K. Sokolowski-Tinten, X.J. Wang, A.H. Reid, X. Shen , M. Lin, S. Park, S. Weathersby, M. Kozina, M.C. Hoffmann, J. Wang, J. Sebesta, Y.K. Takahashi, O. Grånäs, P.M. Oppeneer, H.A. Dürr, Struct. Dyn. 11, 064501 (2024).

  7. Excellent intrinsic magnetic properties in the TbCu7-type Sm-Fe-N compound
    A.R. Dilipan, D. Ogawa, H. Sepehri-Amin, P. Tozman, T. Hiroto, K. Hono, Y.K. Takahashi, Acta Mater. 274, 119996 (2024).

  8. Dual-layer FePt-C granular media for multi-level heat-assisted magnetic recording
    P. Tozman, S. Isogami, I. Suzuki, A. Bolyachkin, H. Sepehri-Amin, S.J. Greaves, H. Suto, Y. Sasaki, T.Y. Chang, Y. Kubota, P. Steiner, P.-W. Huanf, K. Hono, Y.K. Takahashi, Acta Mater. 271, 119869 (2024).

  9. Tomography-based digital twin of Nd-Fe-B permanent magnets
    A. Bolyachkin, E. Dengina, N. Kulesh, Xin Tang, H. Sepehri-Amin, T. Ohkubo, K. Hono, npj Comput. Mater. 10, 34 (2024).

Spintronic Materials:

  1. Growth of [001]-oriented polycrystalline Heusler alloy thin films using [001]-textured Ag buffer layer on thermally oxidized Si substrate for spintronics applications
    D. Taparia, T.T Sasaki, T. Nakatani, H. Suto, K. Inubushi, S. Ichikawa, K. Nakada, T. Sasaki, S. Mitani and Y. Sakuraba, J. Appl. Phys. 136, 123906 (2024).

  2. Improvement in CPP-GMR read head sensor performance using [001]-oriented polycrystalline half-metallic Heusler alloy Co2FeGa0.5Ge0.5 and CoFe bilayer electrode
    D. Taparia, T.T. Sasaki, T. Nakatani, H. Suto, Y. Miura, Z.H. Li, V.K. Kushwaha, K. Inubushi, S. Ichikawa, K. Nakada, T. Sasaki, S. Mitani and Y. Sakuraba, Sci. Tech. Adv. Mater. 25, 2388503 (2024).

  3. Origin of the difference in spin-dependent transport properties between half-metallic Co2FeGa0.5Ge0.5 and Co2Mn0.5Fe0.5Si with the Ag spacer
    K. Simalaotao, Y. Miura, Y. Sakuraba, Phys. Rev. Mater. 8, 104409 (2024).

  4. Large anomalous Nernst conductivity of L10-ordered CoPt in CoPt composition-spread thin films
    R. Toyama, K. Masuda, K. Simalaotao, W. Zhou, V.K. Kushwaha, Y. Sakuraba, J. Phys. D Appl. Phys. 57, 405001 (2024).

  5. Large anomalous Hall effect in spin fluctuating devil's staircase
    N. Abe, Y. Hano, H. Ishizuka, Y. Kozuka, T. Tadano, Y. Tsujimoto, K. Yamaura, S. Ishiwata, J. Fujioka, npj Quantum Materials 9, 41 (2024).

  6. Perspective on nanoscale magnetic sensors using giant anomalous Hall effect in topological magnetic materials for read head application in magnetic recording
    T. Nakatani, P.D. Kulkarni, H. Suto, K. Masuda, H. Iwasaki, Y. Sakuraba, Appl. Phys. Lett. 124, 070501 (2024).

  7. Large magnetoresistance and high spin-transfer torque efficiency of Co2MnxFe1−xGe (0 ≤ x ≤ 1) Heusler alloy thin films obtained by high-throughput compositional optimization using combinatorially sputtered composition-gradient film
    V. Barwal, H. Suto, R. Toyama, K. Simalaotao, T. Sasaki, Y. Miura, Y. Sakuraba, APL Mater. 12, 111114 (2024).

  8. Negative spin polarization and effect of composition on the atomic order and electronic structure of Mn2VAl Heusler alloy thin films
    H. Suto, V. Barwal, K. Masuda, K. Simalaotao, T. Sasaki, Y. Miura, H. Tajiri, L.S.R. Kumara, T. Koganezawa, Y. Sakuraba, Phys. Rev. Materials 8, 114408 (2024).

  9. Incommensurate superlattice modulation surviving down to an atomic scale in sputter-deposited Co/Pt epitaxial multilayered films
    J. Song, T. Scheike, C. He, Z. Wen, T. Ohkubo, K. Kim, H. Sukegawa and S. Mitani, APL Mater. 12, 101120 (2024).

  10. Ultra-low Gilbert damping and self-induced inverse spin Hall effect in GdFeCo thin films
    J. Pradhan, M.S. Devapriya, R. Mondal, J. Uzuhashi, T. Ohkubo, S. Kasai, C. Murapaka, A. Haldar, J. Appl. Phys. 136, 203903 (2024).

  11. Large perpendicular magnetic anisotropy at Fe/rock-salt-type Cr-oxide interface synthesized via oxygen-driven chemical layer exchange process
    Y. Iida, Q. Xiang, T. Scheike, Z. Wen, J. Okabayashi, J. Uzuhashi, T. Ohkubo, K. Hono, H. Sukegawa, and S. Mitani, APL Mater. 12, 111116 (2024).

  12. Enhancing atomic ordering, magnetic and transport properties of Mn2VGa Heusler alloy thin films toward negatively spin-polarized charge injection
    Z.H. Li, H. Suto, V. Barwal, K. Masuda, T.T. Sasaki, Z.X. Chen, H. Tajiri, L.S.R. Kumara, T. Koganezawa, K. Amemiya, S. Kokado, K. Hono, Y. Sakuraba, Acta Mater. 276, 120110 (2024).

  13. Spin-Orbit Torque Modulated by Interface Chemistry in Topological BiSb/NiFe Bilayers with Titanium Insertion
    T. Manoj, Z. Wen, J. Uzuhashi, T. Ohkubo, H. Sukegawa, C. Murapaka, B. York, X. Liu, Q. Le, and S. Mitani, ACS Appl. Electron. Mater. 6, 4269-4276 (2024).

  14. Negative spin polarization of Mn2VGa Heusler alloy thin films studied in current-perpendicular-to-plane giant magnetoresistance devices
    H. Suto, V. Barwal, K. Simalaotao, Z. Li, K. Masuda, T. Sasaki, Y. Miura, Y. Sakuraba, J. Appl. Phys. 135, 203901 (2024).

  15. Enhanced orbital torque efficiency in nonequilibrium Ru50Mo50(0001) alloy epitaxial thin films
    K. Tang, C. He, Z. Wen, H. Sukegawa, T. Ohkubo, Y. Nozaki and S. Mitani, APL Mater. 12, 031131 (2024).

  16. Magneto-transport properties in perpendicularly magnetized magnetic tunnel junctions using an Mg40Fe10O50 tunnel barrier
    T. Yamamoto, T. Ichinose, J. Uzuhashi, T. Nozaki, T. Ohkubo, K. Yakushiji, S. Tamaru, H. Kubota, and S. Yuasa, Acta Mater. 267, 119749 (2024).

Spin Caloritronics:

  1. Chemical-substitution-driven giant anomalous Hall and Nernst effects in magnetic cubic Heusler compounds
    G. Xing, K. Masuda, T. Tadano, Y. Miura, Acta Mater. 270, 119856 (2024).

  2. Quantitative measurement of figure of merit for transverse thermoelectric conversion in Fe/Pt metallic multilayers  Editors' Suggestion 
    T. Yamazaki, T. Hirai, T. Yagi, Y. Yamashita, K. Uchida, T. Seki, and K. Takanashi, Phys. Rev. Appl. 21, 024039 (2024).

  3. Observation of nonvolatile magneto-thermal switching in superconductors
    H. Arima, Md. R. Kasem, H. Sepehri-Amin, F. Ando, K. Uchida, Y. Kinoshita, M. Tokunaga, and Y. Mizuguchi, Commun. Mater. 5, 34 (2024).

  4. Enhancement of transverse thermoelectric conversion by interface-induced spin current in ferromagnetic metal/nonmagnetic insulator hybrid-structure
    T. Itoh, Y. Kozuka, T. Hirai, and K. Uchida, Adv. Funct. Mater. 34, 2409557 (2024).

  5. Hybridizing anomalous Nernst effect in artificially tilted multilayer based on magnetic topological material
    T. Hirai, F. Ando, H. Sepehri-Amin, K. Uchida, Nat. Commun. 15, 9643 (2024).

  6. High-throughput optimization of magnetoresistance materials based on lock-in thermography
    R. Modak, T. Hirai, Y. Sakuraba, S. Mitani, K. Oyanagi, T. Yamazaki, T. Seki, and K. Uchida, Adv. Mater. Res. 3, 2400021 (2024).

  7. Prediction of giant anomalous Nernst effect in Sm(Co,Ni)5
    N. Chiba, K. Masuda, K. Uchida, and Y. Miura, Appl. Phys. Lett. 124, 212408 (2024).

  8. Spin caloritronics in metallic superlattices
    T. Seki, K. Uchida, and K. Takanashi, J. Phys. Condens. Matter. 36, 333001 (2024).

  9. Near-infrared imaging of heat transfer behavior between gadolinium and fluid during magnetization/demagnetization process of magnetocaloric effect
    T.-A. Nguyen, N. Kakuta, K. Uchida, and H. Nagano, J. Appl. Phys. 135, 193904 (2024).

  10. Zero-magnetic-field operation of ordinary-Nernst-effect-based transverse thermoelectric module using embedded permanent magnets  Featured Article 
    M. Murata, T. Hirai, T. Seki, and K. Uchida, Appl. Phys. Lett. 124, 193901 (2024).

  11. Creation of flexible spin-caloritronic material with giant transverse thermoelectric conversion by nanostructure engineering
    R. Gautam, T. Hirai, A. Alasli, H. Nagano, T. Ohkubo, K. Uchida & H. Sepehri-Amin, Nat. Commun. 15, 2184 (2024).

  12. Direct-contact Seebeck-driven transverse magneto-thermoelectric generation in magnetic/thermoelectric bilayers
    W. Zhou, T. Sasaki, K. Uchida, Y. Sakuraba, Adv. Sci. 11, 2308543 (2024).

  13. Permanent-magnet-based transverse thermoelectric generator with high fill factor driven by anomalous Nernst effect
    F. Ando, T. Hirai, and K. Uchida, APL Energy 2, 016103 (2024).

  14. Bipolarity of large anomalous Nernst effect in Weyl magnet-based alloy films
    S. Noguchi, K. Fujiwara, Y. Yanagi, M.-T. Suzuki, T. Hirai, T. Seki, K. Uchida, and A. Tsukazaki, Nat. Phys. 20, 254–260 (2024).

  15. Hybrid Transverse Magneto-Thermoelectric Cooling in Artificially Tilted Multilayers
    K. Uchida, T. Hirai, F. Ando, and H. Sepehri-Amin, Adv. Energy Mater. 14, 2302375 (2024).

Nanostructure Analysis:

(Methods or other materials except for magnetic and spintronic materials)
  1. Advancing the hydrogen tolerance of ultrastrong aluminum alloys via nanoprecipitate modification
    Y. Wang, J. Tang, H. Fujihara, N. Adachi, Y. Todaka, Y. Xu, M. Saha, T.T. Sasaki, K. Shimizu, K. Hirayama, A. Takeuchi, M. Uesugi, H. Toda, Corros. Sci. 240, 112471 (2024).

  2. Direct evidence of induced magnetic moment in Se and the role of misplaced Mn in MnBi2Se4-based intrinsic magnetic topological insulator heterostructures
    R. Fukushima, A. Ernst, M.M. Otrokov, T.T. Sasaki, R. Akiyama, K. Sumida, K. Ishihara, S. Ichinokura, K. Tanaka, Y. Takeda, D.P. Salinas, P. Gargiani, M. Valvidares, S.V. Eremeev, E V. Chulkov, T. Hirahara, Phys. Rev. Mater. 8, 084202 (2024).

  3. Systematic experimental and model-based evaluation of the synergistic effects of alloy composition and damage rate on the formation of Cr-rich precipitates in Fe–Cr–Al alloys under ion irradiation
    Y. Abe, T.T. Sasaki, S. Yamashita, N. Okubo, S. Ukai, J. Nucl. Mater. 600, 155271 (2024).

  4. High-throughput quantification of quasistatic, dynamic, and spall strength of Mg-Zn alloys using nanoindentation and laser-driven shock experiments
    S.E. Prameela, C. Walker, C.S. DiMarco, D. Mallick, S. Hernandez, J. Chen, F. Mammo, T.T. Sasaki, KT Ramesh, G. Pharr, T.P. Weihs, PNAS Nexus 3, 148 (2024).

  5. Uniform formation of Ti-based conversion coatings on aluminum alloy surfaces by alkaline-acid etch treatment to improve organic coating
    N. Banjo, T.T. Sasaki, K. Hono, Appl. Surf. Sci. 61, 160005 (2024).

  6. The interaction mechanism between interstitial-substitutional pairs and defects in nitrogen-added austenitic stainless steels
    Y. Kawahara, S. Kobatake, K. Kaneko, T.T. Sasaki, T. Ohkubo, C. Takushima, J. Hamada, Sci. Rep. 14, 4360 (2024).

  7. 3DP特異界面のナノ構造とその力学挙動
    江草大佑, C. Han, L. Zehao, 佐々木泰祐, 阿部英司, まてりあ 63, 42-48 (2024).

  8. Role of deformation on the hydrogen trapping in the pearlitic steel
    Z.H. Li, T.T. Sasaki, R. Ueji, Y. Kimura, A. Shibata, K. Hono, Scr. Mater. 241, 115859 (2024).

  9. Nano-inclusions Associated with Beryllium in Untreated Blue Sapphires from Diego Suarez, Madagascar
    K. Emori, S. Oto, Y. Igami, J. Uzuhashi, T. Ohkubo, H. Kitawaki, and A. Miyake, J. Gemmol. 39, 364-372 (2024).

  10. Mechanistic Insight into the Effect of Cu Doping on Thermoelectric Properties of Sintered Wet-Chemically Synthesized SnSe2 Nanosheets
    S. Moore, M. Takahashi, P. Sauerschnig, K. Kobayashi, K. Higashimine, M. Miyata, T. Baba, J. Uzuhashi, M. Ohta, T. Mori, T. Ohkubo, and S. Maenosono, ACS Appl. Energy Mater. 7, 7467–7477 (2024).

  11. Effect of sequential N ion implantation in the formation of a shallow Mg-implanted p-type GaN layer
    J. Uzuhashi, J. Chen, R. Tanaka, S. Takashima, M. Edo, T. Ohkubo, and T. Sekiguchi, J. Appl. Phys. 136, 055702 (2024).

  12. Vacancy-Type Defects and Oxygen Incorporation in NiAl for Advanced Interconnects Probed by Monoenergetic Positron Beams and Atom Probe Tomography
    A. Uedono, C. Fleischmann, J. Soulie, M. Ayyad, J. Scheerder, C. Adelmann, J. Uzuhashi, T. Ohkubo, K. Michishio, N. Oshima, and S. Ishibashi, ACS Appl. Electron. Mater. 6, 5894-5902 (2024).

  13. Electronic and Thermal Transport Properties of Nanostructured Thermoelectric Materials Sintered from Chemically Synthesized Tin Sulfide Nanoparticles and Effects of Ag and Se Doping
    K. Kobayashi, M. Takahashi, S. Moore, M. Miyata, P. Sauerschnig, J. Uzuhashi, M. Ohta, T. Ohkubo, and S. Maenosono, ACS Appl. Energy Mater. 7, 4484-4493 (2024).

  14. Systematic study of FIB-induced damage for the high-quality TEM sample preparation
    J. Uzuhashi and T. Ohkubo, Ultramicroscopy 262, 113980 (2024).

  15. Impact of Sequential N Ion Implantation on Extended Defects and Mg Distribution in Mg Ion-Implanted GaN
    E. Kano, J. Uzuhashi, K. Kobayashi, K. Ishikawa, K. Sawabe, T. Narita, K. Sierakowski, M. Bockowski, T. Ohkubo, T. Kachi, and N. Ikarashi, Phys. Status Solidi Rapid Res. Lett. 18, 2400074 (2024).

  16. Atomic-Scale Multimodal Characterization of Self-Assembled InAs/InGaAlAs Quantum Dots
    Y. Yamaguchi, Y. Inaba, R. Arai, Y. Kanitani, Y. Kudo, M. Shiomi, D. Kasahara, M. Yokozeki, N. Fuutagawa, J. Uzuhashi, T. Ohkubo, K. Hono, K. Akahane, N. Yamamoto, and S. Tomiya, J. Phys. Chem. Lett. 15, 3772-3778 (2024).

  17. Vacancy-type defects and their trapping/detrapping of charge carriers in ion-implanted GaN studied by positron annihilation
    A. Uedono, R. Tanaka, S. Takashima, K. Ueno, M. Edo, K. Shima, S.F. Chichibu, J. Uzuhashi, T. Ohkubo, S. Ishibashi, K. Sierakowski, and M. Bockowski, Phys. Status Solidi B 261, 2400060 (2024).

  18. An Automated Site-Specific Tip Preparation Method for Atom Probe Tomography Using Script-Controlled Focused Ion Beam/Scanning Electron Microscopy
    J. Uzuhashi, T. Ohkubo, and K. Hono, Microsc. Microanal. 30, 1124-1129 (2024).

  19. Robust preparation of sub-20-nm-thin lamellae for aberration-corrected electron microscopy
    H. Tsurusawa, J. Uzuhashi, Y. Kozuka, K. Kimoto, and T. Ohkubo, Small Methods 8, 2301425 (2024).

  20. Improvement of oxidation resistance for Ni-base single crystal superalloy TMS-238 by suppression of Sb segregation at oxide/substrate interface using CaO
    H. Maezawa, C. Tabata, Y. Takata, J. Uzuhashi, T. Ohkubo, T. Yokokawa, H. Harada, K. Kawagishi, and S. Suzuki, Metall. Mater. Trans. B 55, 183–194 (2024).

Other Fields:

  1. Nonequilibrium layered PbS stabilized by Sn doping: Bipolar semiconductors with low thermal conductivity
    M. Hiramatsu, Z. Hu, S. Yoshikawa, Z. Yang, X. He, T. Katase, J. Yamaura, H. Sagayama, T. Tadano, S. Ueda, H. Hiramatsu, H. Hosono, T. Kamiya, ACS Appl. Electron. Mater. 6, 8339-8350 (2024).

  2. Continuous crossover between insulating ferroelectrics and polar metals: Ab initio calculation of structural phase transitions of LiBO3 (B=Ta, W, Re, Os)
    R. Masuki, T. Nomoto, R. Arita, T. Tadano, Phys. Rev. B. 110, 094102 (2024).

  3. Terahertz electric-field-driven dynamical multiferroicity in SrTiO3
    M. Basini, M. Pancaldi, B. Wehinger, M. Udina, V. Unikandanunni, T. Tadano, M.C. Hoffmann, A.V. Balatsky, S. Bonetti, Nature 628, 534-539 (2024).

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