Crystallographical and Morphological Changes in Charge-Ordering Transition of RFe2O4 (R: Y, Lu) Investigated by Transmission Electron Microscopy Y. Horibe, S. Mori, N. Ikeda, K. Yoshii, H. Yoshii, and Y. Murakami Ferroelectrics, 584, (2021) in press.
Magnetism of Antiphase Boundaries in Ordered Alloys Studied using Electron Holography T. Tamaoka, R. Aso, and Y. Murakami J. Magn. Magn. Mater. 538, (2021) 168406.
The Effectiveness of Biological Pretreatment of Oil Palm Empty Fruit Bunch on its Conversion into Bio-Coke Vidya Cundasari Koesoemadinata, Kenki Chou, Nur Syahirah Kamal Baharin, Wira Jazair Yahya, Muhamad Ali Muhammad Yuzir, Fazrena Nadia Md Akhir, Koji Iwamoto, Satoshi Hata, Siti Rahmah Binti Aid, Nor’azizi Othman, Tamio Ida, Yasukazu Murakami, and Hirofumi Hara Bioresource Technology Reports 15, (2021) 100765.
Analysis of TEM Images of Metallic Nanoparticles using Convolutional Neural Networks and Transfer Learning A.Koyama, S. Miyauchi, K. Morooka, H. Hojo, H. Einaga, and Y. Murakami J. Magn. Magn. Mater. 538, (2021) 168225.
Improved Efficiency in Automated Acquisition of Atomic-resolution Electron Holograms using Automated Target Detection F. Ichihashi, T. Tanigaki, T. Akashi, Y. Takahashi, K. Kusada, Kohei, T. Takehiro, H. Kitagawa, H. Shinada, and Y. Murakami Microscopy 70, (2021) in press.
Deep Convolutional Neural Network Image Processing Method Providing Improved Signal-to-Noise Ratios in Electron Holography Y. Asari, S. Terada, T. Tanigaki, Y. Takahashi, H. Shinada, H. Nakajima, K. Kanie, and Y. Murakami Microscopy 70, (2021) in press.
Electrostatic Potential Measurement in the Pt/TiO2 Interface using Electron Holography H. Nakajima, T. Tanigaki, T. Toriyama, M. Yamamoto, H. Tanaka and Y. Murakami J. Appl. Phys. 129, (2021) 174304.
Denoising Electron Holograms using the Wavelet Hidden Markov Model for Phase Retrieval-Applications to the Phase-shifting Method T. Tamaoka, Y. Midoh, K. Yamamoto, S. Aritomi, T. Tanigaki, M. Nakamura, K. Nakamae, M. Kawasaki, and Y. Murakami AIP Advances 11, (2021) 025135.
Magnetic Flux Density Measurements from Narrow Grain Boundaries Produced in Sintered Permanent Magnets Y. Cho, S. Lee and Y. Murakamii Microscopy 70, (2021) 17.
For Microscopy Special Issue on‘AI and Imaging’ Y. Okada, and Y. Murakami Microscopy 69, (2020) 59.
Automated Acquisition of Vast Numbers of Electron Holograms with Atomic-scale Phase Information Y. Takahashi, T. Akashi, A. Sato, T. Tanigaki, H. Shinada, and Y. Murakami Microscopy 69, (2020) 132.
Magnetic Flux Density Measurements from Grain Boundary Phase in 0.1 at% Ga-doped Nd-Fe-B Sintered Magnet Y. Cho, T.T. Sasaki, K. Harada, A. Sato, T. Tamaoka, D. Shindo, T. Ohkubo, K. Hono, and Y. Murakami Scripta Mater. 178, (2020) 533-538.
Self-assembled lamellar-type nanostructure in manganite spinel (Co,Mn,Fe)3O4 Y. Horibe, M. Ishimatsu, S. Takeyama, S. Mori, M. Kudo, M. Auchi, M. Tanaka, and Y. Murakami Appl. Phys. Lett. 115, (2019) 232401.
In-Situ Electric Field Observation of Small Precipitates in BaTiO3 Multilayer Ceramic Capacitors N. Kawamoto, H. Ono, Y. Terasaki, Y. Fujikawa, Y. Murakami, and D. Shindo Mater. Trans. 60, (2019) 2109-2113.
Charged domain walls and crystallographic microstructures in hybrid improper ferroelectric Ca3-xSrxTi2O7 N. Nakajima, Y. Horibe, S. Mori, and Y. Murakami Mater. Trans. 60, (2019) 2103-2108.
Self-assembled Structure of Dendronized CdS Nanoparticles H. Nakajima, D. Matsuki, Y. Fukunaga, T. Toriyama, K. Shigematsu, M. Matsubara, K. Kanie, A. Muramatsu, Y. Murakami Microscopy 68, (2019) 342-347.
Growth of Vanadium Dioxide Thin Films on Hexagonal Boron Nitride Flakes as Transferrable Substrates S. Genchi, M. Yamamoto, K. Shigematsu, S. Aritomi, R. Nouchi, T. Kanki, K. Watanabe, T. Taniguchi, Y. Murakami, H. Tanaka Sci. Rep. 9, (2019) 2857.
Suppressing Geometric Phase Shift owing to Antiphase Boundaries in Dark-field Electron Holography Y. Cho, K. Niitsu, Y. Midoh, K. Nakamae, D. Shindo, J. M. Yang and Y. Murakami Mater. Trans. 60, (2019) 698-703.
Single-step Metal-insulator Transition in Thin Film-based Vanadium Dioxide Nanowires with a 20-nm Electrode Gap Y. Tsuji, T. Kanki, Y. Murakami and H. Tanaka Appl. Phys. Exp. 12, (2019) 025003.
Synthesis of Zero-Valent Iron Nanoparticles by Laser Ablation in Formate Ionic Liquid under Atmospheric Conditions S. Okazoe, Y. Yasaka, M. Kudo, H. Maeno, Y. Murakami and Y. Kimura Chem. Commun. 54, (2018) 7834-7837.
Illumination Semi-angle of 10-9 rad Achieved in a 1.2-MV Atomic-resolution Holography Transmission Electron Microscope T. Akashi, Y. Takahashi, K. Harada, T. Onai, Y. Ono, Yoshimasa, H. Shinada, and Y. Murakami Microscopy 67, (2018) 286-295.
Magnetization Measurements for Grain Boundary Phases in Ga-doped Nd-Fe-B Sintered Magnet K. Niitsu, A. Sato, T. T. Sasaki, R. Sawada, Y. Cho, Y. Takada, T. Sato, Y. Kaneko, A. Kato, T. Ohkubo, D. Shindo, K. Hono and Y. Murakami J. Alloys and Compounds 752, (2018) 220-230.
Morphology of Phase-separated VO2 Films Deposited on TiO2-(001) Substrate Y. Cho, S. Aritomi, T. Kanki, K. Kinoshita, N. Endo, Y. Kondo, D. Shindo, H. Tanaka and Y. Murakami Mater. Res. Bull. 102, (2018) 289-293.
Cellular microstructures superposed on martensite plates in Mn55.2Ga19.0Cu25.8 alloy R. Sawada, T. Yamamoto, K. Minakuchi, M. Nagasako, Y. Hayasaka,K. Niitsu, Y. Cho, R. Kainuma and Y. Murakami Scripta Mater. 135, (2017) 33-36.
Atomic-resolution evaluation of microsegregation and degree of atomic order at antiphase boundaries in Ni50Mn20In30 Heusler alloy K. Niitsu, K. Minakuchi, X. Xu, M. Nagasako, I. Ohnuma, T. Tanigaki, Y. Murakami, D. Shindo, R. Kainuma Acta Mater. 122, (2017) 166-177.
Imaging of Surface Spin Textures on Bulk Crystals by Scanning Electron Microscopy H. Akamine, S. Okumura, S. Farjami, Y. Murakami, M. Nishida Scientific Reports 6, (2016) 37265.
Strain Measurement in Ferromagnetic Crystals using Dark-field Electron Holography Y. Murakami, K. Niitsu, S. Kaneko, T. Tanigaki, T.T. Sasaki, Z. Akase, D. Shindo, T. Ohkubo, and K. Hono Appl. Phys. Lett. 109 , (2016) 193102.
Application of Strain to Orbital-spin-coupled System MnV2O4 at Cryogenic Temperatures within Transmission Electron Microscope Y. Murakami, T. Suzuki, S. Murai, Y. Nii, T. Arima, R. Kainuma and D. Shindo Microscopy 65, (2016) 223-232.
New Trend in Electron Holography T. Tanigaki, K. Harada, Y. Murakami, K. Niitsu, T. Akashi, Y. Takahashi, A. Sugawara and D. Shindo J. Phys. D: Appl. Phys. 49(2016) 244001.
Strain Measurements from Nd2Fe14B Grains in Sintered Magnets using Artificial Moiré Fringes Y. Murakami, T. T. Sasaki, T. Ohkubo and K. Hono Acta Mater., 101 (2015) 101-106.
Magnetism of Ultrathin Intergranular Boundary Regions in Nd-Fe-B Permanent Magnets
Y. Murakami, T. Tanigaki, T. Sasaki, Y. Takeno, H. S. Park, T. Matsuda, T. Ohkubo, K. Hono and D. Shindo Acta Mater., 71 (2014) 370-379.
Magnetization Amplified by Structural Disorder within Nanometer-scale Interface Region
Y. Murakami, K. Niitsu, T. Tanigaki, H. S. Park, R. Kainuma and D. Shindo Nature Communications (2014) DOI: 0.1038/ncomms5133.
Revealing Magnetic Domain Structure in Functional Fe2.5Zn0.5O4 Wires by Transmission Electron Microscopy
Y. Murakami, A. Ohta, A. N. Hattori, T. Kanki, S. Aizawa, T. Tanigaki, H. S. Park, H. Tanaka and D. Shindo Acta Mater., 64 (2014) 144-153.
Electron Holography Studies on Narrow Magnetic Domain Walls in a Heusler Alloy Ni50Mn25Al12.5Ga12.5
H. S. Park, Y. Murakami, K. Yanagisawa, T. Matsuda, R. Kainuma, D. Shindo and A. Tonomura Adv. Funct. Mater., 22 (2012) 3434-3437.
Observations of Charge-ordered and Magnetic Domains in LuFe2O4 using Transmission Electron Microscopy
T. Maruyama, Y. Murakami, D. Shindo, N. Abe and T. Arima Phys.Rev.B, 86 (2012) 054202(1)-054202(5).
Suppression of Ferromagnetism within Antiphase Boundaries in Ni50Mn25Al12.5Ga12.5 Alloy
Y. Murakami, T. Yano, R. Y. Umetsu, R. Kainuma, D. Shindo Scripta Mater., 65 (2011) 895-898.
Magnetic Domain Structure in the Orbital-Spin-Coupled System MnV2O4
Y. Murakami, Y. Nii, T. Arima, D. Shindo, K. Yanagisawa and A. Tonomura Phys.Rev.B, 84 (2011) 054421(1)-054421(5).
Electric-field-induced domain switching in the charge/orbital-ordered state of manganite La0.5Sr1.5MnO4
Y.Murakami, S.Konno, T.Arima, D.Shindo and T.Suzuki Phys.Rev.B, 81 (2010) R140102(1)-R140102(4). 【 Editors Suggestion 】
Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite
Y.Murakami, H.Kasai, J.J.Kim, S.Mamishin, D.Shindo, S.Mori and A.Tonomura Nature Nanotechnology, 5 (2010) 37-41.
Study of the Nanostructure of Gum Metal using Energy-filtered Transmission Electron Microscopy
T.Yano, Y.Murakami, D.Shindo and S.Kuramoto Acta Mater., 57 (2009) 628-633.
Macroscopic pattern formation preceding martensitic transformation in a ferromagnetic shape memory alloy Ni51Fe22Ga27
Y.Murakami, D.Shindo, R.Kainuma, K.Okiawa and K.Ishida Appl.Phys.Lett.,92 (2008) 102512(1)-102512(3).
Charge-ordered Domain Structure in YbFe2O4 Observed by Energy-filtered Transmission Electron Microscopy
Y.Murakami, N.Abe, T. Arima and D.Shindo Phys.Rev.B, 76 (2007) 024109(1)-024109(4).
Crystallography of Stress-induced B2-Z2'(trigonal) Martensitic Transformation in Au-49.5at%Cd Alloy
Y.Murakami, T. Ohba, K. Morii, S.Aoki and K.Otsuka Acta Mater., 55 (2007) 3203-3211.
Simultaneous Measurements of Conductivity and Magnetism by Using Microprobes and Electron Holography
Y.Murakami, N.Kawamoto, D.Shindo, I.Ishikawa, S.Deguchi, K.Yamazaki, M.Inoue, Y.Kondo and K.Suganuma Appl.Phys.Lett., 88 (2006) 223103(1)-223103(3).
Magnetic Domain Structure in the Presence of Very Thin Martensite Plates: Electron holography study on a thin-foil Fe-31.2at%Pd alloy
Y.Murakami, D.Shindo, T.Sakamoto, T.Fukuda and T.Kakeshita Acta Mater., 54 (2006) 1233-1239.
Microstructural Change near the Martensitic Transformation in a Ferromagnetic Shape Memory Alloy Ni51Fe22Ga27 Studied by Electron Holography
Y.Murakami, D.Shindo, K.Oikawa, R.Kainuma and K.Ishida Appl.Phys.Lett., 85 (2004) 6170-6172.
Interaction of Separated Ferromagnetic Domains in a Hole-doped Manganite Achieved by a Magnetic Field
J.H.Yoo, Y.Murakami, D.Shindo, T Atou and M.Kikuchi Phys.Rev.Lett., 93 (2004) 047204(1)- 047204(4).
Magnetization Distribution in Mixed-phase State of Hole-doped Perovskite-type Manganites
Y.Murakami, J.H.Yoo, D.Shindo, T.Atou & M.Kikuchi Nature, 423 (2003)965-968.
Magnetic Domain Structure in a Ferromagnetic Shape Memory Alloy Ni51Fe22Ga27 Studied by Electron Holography and Lorentz Microscopy
Y.Murakami, D.Shindo, K.Oikawa, R.Kainuma & K.Ishida Appl.Phys.Lett.,82 (2003)3695-3697.
Change in Microstructure near the R-phase Transformation in Ti50Ni48Fe2 Studied by in situ Electron Microscopy
Y.Murakami & D.Shindo Phil.Mag.Lett., 81 (2001)631-638.
Precursor Effects of Martensitic Transformations in Ti-based Alloys Studied by Electron Microscopy with Energy Filtering
Y.Murakami, H.Shibuya and D.Shindo J.Microscopy, 203 (2001) 22-33.
Lattice Modulation Preceding to the R-phase Transformation in a Ti50Ni48Fe2 Alloy Studied by TEM with Energy-Filtering
Y.Murakami & D.Shindo Mater.Trans.JIM, 40 (1999)1092-1097.
Charge Ordering in Bi1-xCaxMnO3(x<0.75) Studied by Electron Energy-loss Spectroscopy
Y.Murakami, D.Shindo, H.Chiba, M.Kikuchi & Y.Syono Phys.Rev.B, 59 (1999)6395-6399.
Observations of Long-period Structures Associated with Charge Ordering in Bi0.2Ca0.8MnO3
Y.Murakami, D.Shindo, H.Chiba, M.Kikuchi & Y.Syono Phys.Rev.B, 55 (1997)15043-15047.