Research field (2):
Thin-film surfaces and interfaces
, Magnetism, superconductivity, and strongly correlated systems
Research keywords (5):
size effect
, thermal fluctuation
, recording
, magnetic anisotropy
, magnetic materials
Research theme for competitive and other funds (22):
2017 - 2022 Research and development on artificial production of next generation of Rare-Earth Free Magnets with L10 phase similar to Cosmic magnet
2017 - 2020 Engineering technology for high frequency spin dynamics
2017 - 2020 Magnetization reversal analysis of permanent magnet considering local demagnetizing field
2017 - 2019 Feasibility study on multilevel memory based on skyrmion dynamics
2014 - 2017 Development of high-efficiency techniques of microwave-assisted magnetization switching
2012 - 2015 Magnetization dynamics in microstructed NdFeB single dot
2012 - 2015 Precessional switching on perpendicularly magnetized nanodots by picosecond pulse fields
2011 - 2014 Magnetization switching under the assistance of rf field and its feasiility for high density recording
2008 - 2009 超高密度磁気記録を可能とする多値記録方式の原理に関する研究
2007 - 2008 Study on giant magnetic anisotropy of thin films for magnetic recording
2006 - 2008 Direct observation of ultra-fast switching behavior of a single nanomagnet and development of a new switching technology.
2006 - 2007 Interface of Magnetic Multilayers Studied by Magnetic Circular Dichroism Combined with Soft X-ray Standing Waves
2001 - 2003 MAGNETIC PROPERTIES OF REGULARLY ARRAYED NANODOTS AND THEIR APPLICATION TO ULTRA-HIGH DENSITY
2001 - 2002 Development of Magnetic Nanopartides with High Surface Anisotropy for High Density Recording
1997 - 1999 Magnetic properties of micro-structured exchange coupled bilayers
1997 - 1999 Synthesis of metal alloy particles with high magnetic surface anisotropy and development of new functions
1997 - 1998 ミクロ電界蒸発による微細磁気構造の形成とその結晶成長過程の研究
1996 - 1998 Magneto-optical interference effect in metalic thin films with nano-structures
1996 - 1997 Synthesis and phase transformation of hcp-Co based alloy particles
1995 - 1996 SYNTHESIS PROCESS AND GIANT MAGNETIZATION OF INTERSTITIAL TYPE (Fe、Co)-(B、C、N) SINGLE CRYSTALS
1993 - Study on Magnetic Films
1993 - Study on Magnetic Properties of Ultrafine particles
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Papers (323):
Nobuaki Kikuchi, Katsunari Sato, Satoshi Okamoto, Osamu Kitakami, Takehito Shimatsu, Hirofumi Suto. Thermal activation in microwave-assisted magnetization switching and its effect on the switching behavior of granular media. Physical Review B. 2022. 105. 5. 054430-1-054430-11
Takahiro Yomogita, Satoshi Okamoto, Nobuaki Kikuchi, Osamu Kitakami, Hossein Sepehri-Amin, Yukiko K. Takahashi, Tadakatsu Ohkubo, Kazuhiro Hono, Keiko Hioki, Atsushi Hattori. Direct detection and stochastic analysis on thermally activated domain-wall depinning events in micropatterned Nd-Fe-B hot-deformed magnets. ACTA MATERIALIA. 2020. 201. 7-13
N. Kikuchi, T. Yomogita, K. Sato, S. Okamoto, O. Kitakami, H. Osawa, M. Suzuki, K. Toyoki, Y. Kotani, T. Nakamura. Imaging of transient magnetization dynamics of Co/Pt multilayer dots with X-ray magnetic circular dichroism excited by microwaves. Japanese Journal of Applied Physics. 2020. 59. SE. SEED03-SEED03
- 1980 Tohoku University Graduate School, Division of Engineering
- 1978 Tohoku University Faculty of Engineering
Professional career (1):
博士(工学) (Tohoku University)
Work history (5):
2021/04 - 現在 Tohoku University Tohoku University Advanced Graduate School Center for Graduate School Reform
2005/04 - Institute of Multidisciplinary Research for Advanced Materials, Tohoku University Professor
2001/04 - 2005/03 Institute of Multidisciplinary Research for Advanced Materials, Tohoku University Associate Professor
1993/04 - 2001/03 Research Institute for Scientific Measurements, Tohoku University Associate Professor
1980/04 - 1993/03 Hitachi Maxell, Ltd. Researcher
Awards (11):
2018/09 - The Magnetics Society of Japan (MSJ) Fellow (Magnetics Society of Japan)
2017/04 - Best Poster Award (Japan Society of Applied Physics)
2014/04 - The Ministry of Education, Culture, Sports,Science and Technology The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology
2012/10 - The Magnetics Society of Japan (MSJ) Achievement Award
2012/06 - Storage Research Consortium Best Paper Award
2011/05 - Storage Research Consortium Best Paper Award (SRC)
2010/09 - The Magnetics Society of Japan Best Paper Award
2009/05 - Storage Research Consortium Best Paper Award
2007/11 - 52nd Magnetism and Magnetic Materials Conference Poster Award Committee Best Poster Award (52nd MMM Conference)
2000/03 - Japan Institute of Metals and Materials Meritorious Award