Keiji Enpuku

Kyushu University — Japan

Engineering · Physical Sciences

31h-index4.2kcitations335works7.52yr avg
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Research Topics

Characterization and Applications of Magnetic Nanoparticles(147), Physics of Superconductivity and Magnetism(116), Magnetic properties of thin films(56), Microfluidic and Bio-sensing Technologies(54), Geomagnetism and Paleomagnetism Studies(53)

Publications335 total

Optimization of excitation field depending on magnetic nanoparticle parameters for magnetic hyperthermia under safety constraint
AIP Advances·2024· 6 citedOpen Access
Field-dependent Néel relaxation time of magnetic nanoparticles in AC excitation fields: Boundary field between Néel- and Brownian-dominant regions
Journal of Applied Physics·2024· 9 citedOpen Access
Development of Liquid-Phase Bioassay Using AC Susceptibility Measurement of Magnetic Nanoparticles
IEICE Transactions on Electronics·2023Open Access
Harmonic signals of magnetic nanoparticle in suspension for biosensing application: Comparison of properties between Brownian- and Néel-dominant regions
Journal of Magnetism and Magnetic Materials·2023· 7 cited
Quantitative explanation of the difference in AC magnetization curves between suspended and immobilized magnetic nanoparticles for biomedical application
Journal of Magnetism and Magnetic Materials·2022· 5 cited
Dependence of hysteresis loss of immobilized magnetic nanoparticles on the easy-axis angle: Effect of easy-axis alignment
AIP Advances·2022· 6 citedOpen Access
Expression for hysteresis loss of immobilized magnetic nanoparticles in a wide range of particle parameters and excitation conditions: Parameter optimization for hyperthermia application
AIP Advances·2021· 12 citedOpen Access
Evaluation of effective magnetic anisotropy constant of magnetic nanoparticles from coercive field of AC magnetization curve
Journal of Applied Physics·2021· 8 cited
Difference in AC magnetization between suspended and immobilized magnetic nanoparticles in Néel-relaxation dominant case: Effect of easy axis alignment in suspended nanoparticles
Journal of Applied Physics·2021· 16 cited
Effect of easy axis alignment on dynamic magnetization of immobilized and suspended magnetic nanoparticles
Journal of Applied Physics·2021· 23 cited
Power dissipation in magnetic nanoparticles evaluated using the AC susceptibility of their linear and nonlinear responses
Journal of Magnetism and Magnetic Materials·2020· 29 citedOpen Access
Determination of the effective anisotropy constant of magnetic nanoparticles – Comparison between two approaches
Journal of Magnetism and Magnetic Materials·2020· 34 cited
AC Magnetization of Immobilized Magnetic Nanoparticles With Different Degrees of Parallel Alignment of Easy Axes
IEEE Transactions on Magnetics·2020· 13 cited
Rectangular wave eddy current testing using for imaging of backside defects of steel plates
International Journal of Applied Electromagnetics and Mechanics·2020· 6 cited
Bio-sensing utilizing magnetic nanoparticles
The Japan Society of Applied Physics·2020
Magnetic Particle Imaging
Bioimaging·2020· 3 cited
Amplitude and phase of higher harmonic of magnetic nanoparticles’ magnetization under low frequency magnetic field
Journal of Magnetism and Magnetic Materials·2020· 2 cited
Estimation of the effective magnetic anisotropy constant of multi-core based magnetic nanoparticles from the temperature dependence of the coercive field
Journal of Applied Physics·2020· 24 cited
Viscosity dependent amplitude and phase of harmonic signals of magnetic nanoparticles
Journal of Magnetism and Magnetic Materials·2020· 14 cited
Two-dimensional magnetic nanoparticle imaging using multiple magnetic sensors based on amplitude modulation
Journal of Magnetism and Magnetic Materials·2020· 14 cited
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Frequent Co-authors

Takashi Yoshida(16), Keiji Yoshida(10), Frank Ludwig(8), Teruyoshi Sasayama(6), Tadashi Minotani(5), Meinhard Schilling(5), Hiroyuki Kuma(5), Naotaka Hamasaki(5), Kohji Yoshinaga(5), Feng Dang(4), Naoya Enomoto(4), Junichi Hojo(4), Takanobu Kisu(4), Tadao Nagatsuma(3), F. Irie(3), Akira Tsukamoto(3), Jan Dieckhoff(3), K. Soejima(3), Yukinori Kuroki(2), F. Irie(2)