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Research Output 1990 2019

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2019

Charged domain walls and crystallographic microstructures in hybrid improper ferroelectric Ca3 1 xSrxTi2O7

Nakajima, H., Shigematsu, K., Horibe, Y., Mori, S. & Murakami, Y., Jan 1 2019, In : Materials Transactions. 60, 10, p. 2103-2108 6 p.

Research output: Contribution to journalArticle

Open Access
Ferroelectricity
ferroelectric materials
antiphase boundaries
Domain walls
ferroelectricity

Growth of vanadium dioxide thin films on hexagonal boron nitride flakes as transferrable substrates

Genchi, S., Yamamoto, M., Shigematsu, K., Aritomi, S., Nouchi, R., Kanki, T., Watanabe, K., Taniguchi, T., Murakami, Y. & Tanaka, H., Dec 1 2019, In : Scientific reports. 9, 1, 2857.

Research output: Contribution to journalArticle

Open Access
Optics and Photonics
Growth
Silicon
Oxides
Metals

In-situ electric field observation of small precipitates in BaTiO3 multilayer ceramic capacitors

Kawamoto, N., Ono, H., Terasaki, Y., Fujikawa, Y., Murakami, Y. & Shindo, D., Jan 1 2019, In : Materials Transactions. 60, 10, p. 2109-2113 5 p.

Research output: Contribution to journalArticle

Open Access
Indium compounds
indium compounds
Electron holography
Ceramic capacitors
Barium titanate
1 Citation (Scopus)

Self-assembled structure of dendronized CdS nanoparticles

Nakajima, H., Matsuki, D., Fukunaga, Y., Toriyama, T., Shigematsu, K., Matsubara, M., Kanie, K., Muramatsu, A. & Murakami, Y., Aug 6 2019, In : Microscopy (Oxford, England). 68, 4, p. 342-347 6 p.

Research output: Contribution to journalArticle

Scanning Transmission Electron Microscopy
Nanoparticles
Microtomy
Annealing
nanoparticles
2 Citations (Scopus)

Single-step metal-insulator transition in thin film-based vanadium dioxide nanowires with a 20 nm electrode gap

Tsuji, Y., Kanki, T., Murakami, Y. & Tanaka, H., Feb 1 2019, In : Applied Physics Express. 12, 2, 025003.

Research output: Contribution to journalArticle

Open Access
Metal insulator transition
dioxides
Vanadium
vanadium
Nanowires

Suppressing geometric phase shift owing to antiphase boundaries in dark-field electron holography

Cho, Y., Niitsu, K., Midoh, Y., Nakamae, K., Shindo, D., Yang, J. M. & Murakami, Y., Jan 1 2019, In : Materials Transactions. 60, 5, p. 698-703 6 p.

Research output: Contribution to journalArticle

Electron holography
antiphase boundaries
Phase shift
holography
phase shift
2018
7 Citations (Scopus)

Magnetization measurements for grain boundary phases in Ga-doped Nd-Fe-B sintered magnet

Niitsu, K., Sato, A., Sasaki, T. T., Sawada, R., Cho, Y., Takada, Y., Sato, T., Kaneko, Y., Kato, A., Ohkubo, T., Shindo, D., Hono, K. & Murakami, Y., Jul 5 2018, In : Journal of Alloys and Compounds. 752, p. 220-230 11 p.

Research output: Contribution to journalArticle

Magnets
Magnetization
Grain boundaries
Coercive force
Electron holography
2 Citations (Scopus)

Morphology of phase-separated VO2 films deposited on TiO2-(001) substrate

Cho, Y., Aritomi, S., Kanki, T., Kinoshita, K., Endo, N., Kondo, Y., Shindo, D., Tanaka, H. & Murakami, Y., Jun 1 2018, In : Materials Research Bulletin. 102, p. 289-293 5 p.

Research output: Contribution to journalArticle

Lattice mismatch
Substrates
phase transformations
Phase transitions
Transmission electron microscopy
1 Citation (Scopus)

Synthesis of zero-valent iron nanoparticles via laser ablation in a formate ionic liquid under atmospheric conditions

Okazoe, S., Yasaka, Y., Kudo, M., Maeno, H., Murakami, Y. & Kimura, Y., Jan 1 2018, In : Chemical Communications. 54, 56, p. 7834-7837 4 p.

Research output: Contribution to journalArticle

formic acid
Ionic Liquids
Metal nanoparticles
Laser ablation
Ionic liquids
2017
6 Citations (Scopus)

Atomic-resolution evaluation of microsegregation and degree of atomic order at antiphase boundaries in Ni50Mn20In30 Heusler alloy

Niitsu, K., Minakuchi, K., Xu, X., Nagasako, M., Ohnuma, I., Tanigaki, T., Murakami, Y., Shindo, D. & Kainuma, R., Jan 1 2017, In : Acta Materialia. 122, p. 166-177 12 p.

Research output: Contribution to journalArticle

Transmission electron microscopy
Rietveld analysis
Scanning electron microscopy
Gibbs free energy
Phase shift

Cellular microstructures superposed on martensite plates in Mn55.2Ga19.0Cu25.8 alloy showing large coercivity

Sawada, R., Yamamoto, T., Minakuchi, K., Nagasako, M., Hayasaka, Y., Niitsu, K., Cho, Y., Kainuma, R. & Murakami, Y., Jul 1 2017, In : Scripta Materialia. 135, p. 33-36 4 p.

Research output: Contribution to journalArticle

Phase boundaries
Coercive force
martensite
Martensite
coercivity
2016
1 Citation (Scopus)

Application of strain to orbital-spin-coupled system MnV 2 O 4 at cryogenic temperatures within a transmission electron microscope

Murakami, Y., Suzuki, T., Nii, Y., Murai, S., Arima, T., Kainuma, R. & Shindo, D., Jun 28 2016, In : Microscopy. 65, 3, p. 223-232 10 p.

Research output: Contribution to journalArticle

Magnetic domains
Mechanical Stress
cryogenic temperature
magnetic domains
Cryogenics
1 Citation (Scopus)

Imaging of surface spin textures on bulk crystals by scanning electron microscopy

Akamine, H., Okumura, S., Farjami, S., Murakami, Y. & Nishida, M., Nov 22 2016, In : Scientific reports. 6, 37265.

Research output: Contribution to journalArticle

textures
scanning electron microscopy
crystals
domain wall
magnetic domains
3 Citations (Scopus)

New trend in electron holography

Tanigaki, T., Harada, K., Murakami, Y., Niitsu, K., Akashi, T., Takahashi, Y., Sugawara, A. & Shindo, D., May 12 2016, In : Journal of Physics D: Applied Physics. 49, 24, 244001.

Research output: Contribution to journalArticle

Electron holography
holography
trends
Tomography
electrons
2 Citations (Scopus)

Strain measurement in ferromagnetic crystals using dark-field electron holography

Murakami, Y., Niitsu, K., Kaneko, S., Tanigaki, T., Sasaki, T., Akase, Z., Shindo, D., Ohkubo, T. & Hono, K., Nov 7 2016, In : Applied Physics Letters. 109, 19, 193102.

Research output: Contribution to journalArticle

strain measurement
holography
phase shift
permanent magnets
crystals
2015
12 Citations (Scopus)

Strain measurements from Nd2Fe14B grains in sintered magnets using artificial moiré fringes

Murakami, Y., Sasaki, T. T., Ohkubo, T. & Hono, K., Dec 1 2015, In : Acta Materialia. 101, p. 101-106 6 p.

Research output: Contribution to journalArticle

Strain measurement
Magnets
Grain boundaries
Magnetocrystalline anisotropy
Elongation
2014
3 Citations (Scopus)

Electron holographic visualization of collective motion of electrons through electric field variation

Shindo, D., Aizawa, S., Akase, Z., Tanigaki, T., Murakami, Y. & Park, H. S., 2014, In : Microscopy and Microanalysis. 20, 4, p. 1015-1021 7 p.

Research output: Contribution to journalArticle

Visualization
Electric fields
electric fields
Electrons
electrons
10 Citations (Scopus)

Fabrication of three-dimensional epitaxial (Fe,Zn)3O4 nanowall wire structures and their transport properties

Hattori, A. N., Fujiwara, Y., Fujiwara, K., Murakami, Y., Shindo, D. & Tanaka, H., Jan 1 2014, In : Applied Physics Express. 7, 4, 045201.

Research output: Contribution to journalArticle

Transport properties
transport properties
wire
Wire
Fabrication
55 Citations (Scopus)

Magnetism of ultrathin intergranular boundary regions in Nd-Fe-B permanent magnets

Murakami, Y., Tanigaki, T., Sasaki, T. T., Takeno, Y., Park, H. S., Matsuda, T., Ohkubo, T., Hono, K. & Shindo, D., Jun 2014, In : Acta Materialia. 71, p. 370-379 10 p.

Research output: Contribution to journalArticle

Magnetism
Permanent magnets
Grain boundaries
Phase shift
Magnets
23 Citations (Scopus)

Magnetization amplified by structural disorder within nanometre-scale interface region

Murakami, Y., Niitsu, K., Tanigaki, T., Kainuma, R., Park, H. S. & Shindo, D., Jun 18 2014, In : Nature communications. 5, 4133.

Research output: Contribution to journalArticle

antiphase boundaries
Magnetization
Holography
Electron holography
disorders
7 Citations (Scopus)

Morphology and magnetic flux distribution in superparamagnetic, single-crystalline Fe3O4 nanoparticle rings

Takeno, Y., Murakami, Y., Sato, T., Tanigaki, T., Park, H. S., Shindo, D., Ferguson, R. M. & Krishnan, K. M., Nov 3 2014, In : Applied Physics Letters. 105, 18, 183102.

Research output: Contribution to journalArticle

magnetic flux
nanoparticles
rings
crystal defects
anisotropy
5 Citations (Scopus)

Revealing magnetic domain structure in functional Fe2.5Zn 0.5O4 wires by transmission electron microscopy

Murakami, Y., Ohta, A., Hattori, A. N., Kanki, T., Aizawa, S., Tanigaki, T., Park, H. S., Tanaka, H. & Shindo, D., Feb 1 2014, In : Acta Materialia. 64, p. 144-153 10 p.

Research output: Contribution to journalArticle

Magnetic domains
Wire
Transmission electron microscopy
Electron holography
Molybdenum
5 Citations (Scopus)

Split-illumination electron holography for improved evaluation of electrostatic potential associated with electrophotography

Tanigaki, T., Sato, K., Akase, Z., Aizawa, S., Soon Park, H., Matsuda, T., Murakami, Y., Shindo, D. & Kawase, H., Mar 31 2014, In : Applied Physics Letters. 104, 13, 131601.

Research output: Contribution to journalArticle

holography
illumination
electrostatics
evaluation
electrons
2013
18 Citations (Scopus)

Determination of magnetic flux density at the nanometer-scale antiphase boundary in Heusler alloy Ni50Mn25Al12.5Ga 12.5

Murakami, Y., Yanagisawa, K., Niitsu, K., Park, H. S., Matsuda, T., Kainuma, R., Shindo, D. & Tonomura, A., Apr 1 2013, In : Acta Materialia. 61, 6, p. 2095-2101 7 p.

Research output: Contribution to journalArticle

Electron holography
Magnetic domains
Ferromagnetism
Domain walls
Magnetism

Multifunctional TEM-specimen holder equipped with a piezodriving probe and an electron irradiation port

Shindo, D., Suzuki, S., Sato, K., Akase, Z., Murakami, Y., Yamazaki, K., Ikeda, Y. & Fukuda, T., Aug 1 2013, In : Journal of Electron Microscopy. 62, 4, p. 487-490 4 p.

Research output: Contribution to journalArticle

Electron irradiation
electron irradiation
holders
Electron holography
charging
1 Citation (Scopus)

TEM studies of domain formation mechanisms in MnV2O4

Murakami, Y., Nii, Y., Arima, T., Shindo, D., Yanagisawa, K. & Tonomura, A., Nov 15 2013, In : Journal of Alloys and Compounds. 577, SUPPL. 1, p. S731-S735

Research output: Contribution to journalArticle

Magnetic domains
Transmission electron microscopy
Electron holography
Cooling
Magnetostriction
2012
1 Citation (Scopus)

Correlation between switching field and microstructure of individual Co/Pt dots

Kikuchi, N., Murayama, Y., Murakami, Y., Okamoto, S., Shindo, D. & Kitakami, O., Oct 1 2012, In : Japanese journal of applied physics. 51, 10, 103002.

Research output: Contribution to journalArticle

microstructure
Microstructure
Magnetic force microscopy
magnetic force microscopy
Magnetic anisotropy
8 Citations (Scopus)

Electron holography studies on narrow magnetic domain walls observed in a heusler alloy Ni 50Mn 25Al 12.5Ga 12.5

Park, H. S., Murakami, Y., Yanagisawa, K., Matsuda, T., Kainuma, R., Shindo, D. & Tonomura, A., Aug 21 2012, In : Advanced Functional Materials. 22, 16, p. 3434-3437 4 p.

Research output: Contribution to journalArticle

Electron holography
Magnetic domains
antiphase boundaries
Domain walls
magnetic domains
2 Citations (Scopus)

Observation of electric potential distribution in model capacitor sample using electron holography

Kuramae, R., Ono, H., Fujikawa, Y., Murakami, Y. & Shindo, D., Apr 5 2012, In : Materials Transactions. 53, 4, p. 696-699 4 p.

Research output: Contribution to journalArticle

Electron holography
holography
capacitors
Capacitors
Electrons
10 Citations (Scopus)

Observations of charge-ordered and magnetic domains in LuFe 2O 4 using transmission electron microscopy

Maruyama, T., Murakami, Y., Shindo, D., Abe, N. & Arima, T., Aug 9 2012, In : Physical Review B - Condensed Matter and Materials Physics. 86, 5, 054202.

Research output: Contribution to journalArticle

Magnetic domains
magnetic domains
Electron holography
Magnetic fields
Transmission electron microscopy
3 Citations (Scopus)

TEM study of local conduction mechanisms in model specimens of Ag-based conductive adhesive

Kurosu, K., Kawamoto, N., Murakami, Y. & Shindo, D., Feb 1 2012, In : IEEE Transactions on Components, Packaging and Manufacturing Technology. 2, 2, p. 294-299 6 p., 6111212.

Research output: Contribution to journalArticle

Adhesives
Transmission electron microscopy
Electrodes
Epoxy Resins
Current voltage characteristics
2011
10 Citations (Scopus)

Electron holography study of electric field variations

Shindo, D. & Murakami, Y., Aug 1 2011, In : Journal of Electron Microscopy. 60, SUPPL. 1, p. S225-S237

Research output: Contribution to journalArticle

Holography
Electron holography
holography
Electric fields
Electrons
5 Citations (Scopus)

Investigation of tribocharges and their migration in layered model toners by electron holography

Seok Jeong, J., Murakami, Y., Shindo, D. & Kawase, H., Jun 15 2011, In : Journal of Applied Physics. 109, 12, 124903.

Research output: Contribution to journalArticle

holography
electrons
equipotentials
electric fields
holders
14 Citations (Scopus)

Local temperature measurements on nanoscale materials using a movable nanothermocouple assembled in a transmission electron microscope

Kawamoto, N., Wang, M. S., Wei, X., Tang, D. M., Murakami, Y., Shindo, D., Mitome, M. & Golberg, D., Dec 2 2011, In : Nanotechnology. 22, 48, 485707.

Research output: Contribution to journalArticle

Thermocouples
Temperature measurement
Electron microscopes
Nanosystems
Carbon Nanotubes
3 Citations (Scopus)

Magnetic domain structure in the orbital-spin-coupled system MnV 2O4

Murakami, Y., Nii, Y., Arima, T., Shindo, D., Yanagisawa, K. & Tonomura, A., Aug 5 2011, In : Physical Review B - Condensed Matter and Materials Physics. 84, 5, 054421.

Research output: Contribution to journalArticle

Magnetic domains
magnetic domains
orbitals
magnetic anomalies
crystals
1 Citation (Scopus)

Magnetic microstructure analysis of ferromagnetic shape memory alloys and related compounds

Murakami, Y., Kainuma, R., Shindo, D. & Tonomura, A., May 17 2011, In : Materials Science Forum. 684, p. 117-128 12 p.

Research output: Contribution to journalArticle

shape memory alloys
Shape memory effect
Magnetization
Electron holography
Transmission electron microscopy

Study of local magnetism by transmission electron microscopy

Murakami, Y., Kainuma, R., Shindo, D. & Tonomura, A., Aug 26 2011, In : Journal of the Vacuum Society of Japan. 54, 4, p. 256-263 8 p.

Research output: Contribution to journalArticle

Magnetic domains
antiphase boundaries
Domain walls
Magnetism
Microscopic examination
7 Citations (Scopus)

Suppression of ferromagnetism within antiphase boundaries in Ni 50Mn25Al12.5Ga12.5 alloy

Murakami, Y., Yano, T., Umetsu, R. Y., Kainuma, R. & Shindo, D., Nov 1 2011, In : Scripta Materialia. 65, 10, p. 895-898 4 p.

Research output: Contribution to journalArticle

Magnetic domains
antiphase boundaries
Ferromagnetism
Domain walls
Shape memory effect
2010
6 Citations (Scopus)

Electric-field-induced domain switching in the charge/orbital-ordered state of manganite La0.5 Sr1.5 MnO4

Murakami, Y., Konno, S., Arima, T., Shindo, D. & Suzuki, T., Apr 7 2010, In : Physical Review B - Condensed Matter and Materials Physics. 81, 14, 140102.

Research output: Contribution to journalArticle

Electric fields
orbitals
electric fields
Transmission electron microscopy
Cooling
2 Citations (Scopus)

Elucidation of microstructures produced in Ni51Fe 22Ga27 ferromagnetic shape memory alloy

Murakami, Y., Yano, T., Shindo, D., Kainuma, R., Oikawa, K. & Ishida, K., Mar 15 2010, In : Journal of Applied Physics. 107, 4, 043904.

Research output: Contribution to journalArticle

martensitic transformation
shape memory alloys
microstructure
accommodation
martensite
92 Citations (Scopus)

Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite

Murakami, Y., Kasai, H., Kim, J. J., Mamishin, S., Shindo, D., Mori, S. & Tonomura, A., Jan 1 2010, In : Nature Nanotechnology. 5, 1, p. 37-41 5 p.

Research output: Contribution to journalArticle

Colossal magnetoresistance
Microscopic examination
Nucleation
Electron holography
nucleation
5 Citations (Scopus)

Local conductivity and electric field analysis of Ag-based conductive adhesive by transmission electron microscopy

Kawamoto, N., Murakami, Y. & Shindo, D., Mar 15 2010, In : Journal of Applied Physics. 107, 4, 044309.

Research output: Contribution to journalArticle

adhesives
conductivity
transmission electron microscopy
electric fields
conduction

Lorentz microscopy study on magnetization reversal process in single-domain state in perovskite-type manganite

Mamishin, S., Kasai, H., Xia, W., Murakami, Y., Shindo, D., Mori, S. & Tonomura, A., Jun 1 2010, In : Japanese journal of applied physics. 49, 6 PART 1, p. 630031-630034 4 p.

Research output: Contribution to journalArticle

Magnetization reversal
Perovskite
Microscopic examination
microscopy
magnetization
33 Citations (Scopus)

Transmission electron microscopy studies on nanometer-sized ω phase produced in Gum Metal

Yano, T., Murakami, Y., Shindo, D., Hayasaka, Y. & Kuramoto, S., Sep 1 2010, In : Scripta Materialia. 63, 5, p. 536-539 4 p.

Research output: Contribution to journalArticle

Metals
spacing
Transmission electron microscopy
transmission electron microscopy
Thickness measurement
3 Citations (Scopus)

Transmission electron microscopy study on microstructure of Ag-Based conductive adhesives

Kawamoto, N., Murakami, Y., Shindo, D., Hayasaka, Y., Kan, T. & Suganuma, K., Oct 1 2010, In : Materials Transactions. 51, 10, p. 1773-1778 6 p.

Research output: Contribution to journalArticle

adhesives
Metal foil
foils
Adhesives
Transmission electron microscopy
2 Citations (Scopus)

Transmission electron microscopy study on the grain boundaries and magnetic domains in Nd-Fe-B based magnets

Sato, K., Murakami, Y., Shindo, D., Hirosawa, S. & Yasuhara, A., Feb 1 2010, In : Materials Transactions. 51, 2, p. 333-340 8 p.

Research output: Contribution to journalArticle

Magnetic domains
magnetic domains
Magnets
sintering
Grain boundaries
2009
4 Citations (Scopus)

Changes in switching fields of CoCrPt- SiO2 perpendicular recording media due to Ru intermediate layer under low and high gas pressures

Xia, W., Murakami, Y., Shindo, D. & Takahashi, M., Jul 9 2009, In : Journal of Applied Physics. 105, 1, 013926.

Research output: Contribution to journalArticle

gas pressure
recording
coercivity
computerized simulation
hysteresis
11 Citations (Scopus)

Development of a multifunctional TEM specimen holder equipped with a piezodriving probe and a laser irradiation port

Shindo, D., Takahashi, K., Murakami, Y., Yamazaki, K., Deguchi, S., Suga, H. & Kondo, Y., Aug 1 2009, In : Journal of Electron Microscopy. 58, 4, p. 245-249 5 p.

Research output: Contribution to journalArticle

Laser beam effects
holders
Lasers
Transmission electron microscopy
transmission electron microscopy
3 Citations (Scopus)

Observations of a magnetic microstructure in a co-coo obliquely evaporated tape using electron holography

Tohara, K., Xia, W., Murakami, Y., Shindo, D., Ito, T., Iwasaki, Y. & Tachibana, J., Jan 1 2009, In : Journal of Electron Microscopy. 58, 1, p. 7-13 7 p.

Research output: Contribution to journalArticle

Holography
Electron holography
Magnetic Fields
holography
Tapes
2 Citations (Scopus)

Precise resistivity measurement of submicrometer-sized materials by using tem with microprobes

Kawamoto, N., Murakami, Y., Shindo, D., Azehara, H. & Tokumoto, H., Jun 1 2009, In : Materials Transactions. 50, 6, p. 1572-1575 4 p.

Research output: Contribution to journalArticle

electrical resistivity
Electric conductivity
Needles
Copper
Microscopic examination