Atsufumi Hirohata
University of York
Faculty Member, Engineering & Technology
United Kingdom
My co-authors include
Rachid Sbiaa
Professor Denis D Sheka
Hiroaki Sukegawa
Find me at
My Publications
Growth and Characterisation of Antiferromagnetic Ni2MnAl Heusler Alloy Films
Magnetochemistry
September 2021
Revealing the importance of interfaces for pure spin current transport
Physical Review Research
May 2021
Thermally assisted magnetisation reversal
Applied Physics Letters
April 2021
Global snapshot of the effects of the COVID-19 pandemic on the research activities of m...
Science and Technology of Advanced Materials
April 2021
Heusler alloys for spintronic devices: review on recent development and future perspect...
Science and Technology of Advanced Materials
March 2021
Magnetic braille using ferrofluids
Journal of Physics D Applied Physics
March 2021
Non-Destructive Imaging on Synthesised Nanoparticles
Materials
January 2021
Review on spintronics: Principles and device applications
Journal of Magnetism and Magnetic Materials
September 2020
The 2020 magnetism roadmap
Journal of Physics D Applied Physics
August 2020
Magnetic tunnel junctions with metastable bcc Co3Mn electrodes
Applied Physics Express
August 2020
Opportunities and challenges for spintronics in the microelectronics industry
Nature Electronics
August 2020
Anisotropy in antiferromagnets
Journal of Applied Physics
July 2020
Experimental inspection of a computationally-designed NiCrMnSi Heusler alloy with high ...
Japanese Journal of Applied Physics
June 2020
A review of methods and data to determine raw material criticality
Resources Conservation and Recycling
April 2020
Non-destructive imaging for quality assurance of magnetoresistive random-access memory ...
Journal of Physics D Applied Physics
October 2019
Switching of Skyrmion chirality by local heating
Scientific Reports
September 2019
Controllability of cupric particle synthesis by linear alcohol chain number as additive...
Journal of Synchrotron Radiation
September 2019
Magnetic tunnel junctions with a B2 -ordered CoFeCrAl equiatomic Heusler alloy
Physical Review Materials
August 2019
In-plane and perpendicular exchange bias effect induced by an antiferromagnetic D019 Mn...
Journal of Magnetism and Magnetic Materials
August 2019
Low-temperature crystallisation of Heusler alloy films with perpendicular magnetic anis...
Journal of Magnetism and Magnetic Materials
August 2019
Fabrication of magnetic tunnel junctions with a metastable bcc Co3Mn disordered alloy a...
Japanese Journal of Applied Physics
July 2019
Thermal stability of exchange bias systems based on MnN
Journal of Magnetism and Magnetic Materials
April 2019
Structural and antiferromagnetic characterization of noncollinear D019 Mn3Ge polycrysta...
Journal of Magnetism and Magnetic Materials
March 2019
Magnetic Force Microscopy for Magnetic Recording and Devices
January 2019
Growth and characterisation of ferromagnetic and antiferromagnetic Fe2+x V y Al Heusler...
Journal of Physics D Applied Physics
July 2018
Chemical and structural analysis on magnetic tunnel junctions using a decelerated scann...
Scientific Reports
May 2018
Large exchange bias induced by polycrystalline Mn3Ga antiferromagnetic films with contr...
Journal of Physics D Applied Physics
May 2018
Heusler alloys with bcc tungsten seed layers for GMR junctions
Journal of Magnetism and Magnetic Materials
May 2018
Magneto-optical detection of spin accumulation under the influence of mechanical rotation
Scientific Reports
January 2018
Perpendicular Magnetic Anisotropy in Heusler Alloy Films and Their Magnetoresistive Jun...
Materials
January 2018
Spintronics based random access memory: a review
Materials Today
November 2017
Development of antiferromagnetic Heusler alloys for the replacement of iridium as a cri...
Journal of Physics D Applied Physics
September 2017
Magnetic and structural properties of antiferromagnetic Mn2VSi alloy films grown at ele...
Journal of Physics D Applied Physics
August 2017
Fabrication of Epitaxial Fe3O4 Film on a Si(111) Substrate
Scientific Reports
August 2017
Integration of antiferromagnetic Heusler compound Ru<sub>2</sub>MnGe into spintronic de...
Applied Physics Letters
July 2017
Growth and characterisation of antiferromagnetic polycrystalline Mn<inf>3</inf>Ga films
April 2017
Exchange bias induced at a Co2FeAl0.5Si0.5/Cr interface
Journal of Physics D Applied Physics
February 2017
The antiphase boundary in half-metallic Heusler alloy Co<sub>2</sub>Fe(Al,Si): atomic s...
Applied Physics Letters
November 2016
Highly Efficient Spin-Current Operation in a Cu Nano-Ring
Scientific Reports
November 2016
Realisation of magnetically and atomically abrupt half-metal/semiconductor interface: C...
Scientific Reports
November 2016
Non-destructive imaging of buried electronic interfaces using a decelerated scanning el...
Nature Communications
September 2016
Controlling the half-metallicity of Heusler/Si(1 1 1) interfaces by a monolayer of Si–C...
Journal of Physics Condensed Matter
August 2016
Perpendicular Anisotropy in Heusler Alloy Layers Induced by a V Seed Layer
IEEE Transactions on Magnetics
July 2016
Exchange bias effects in Heusler alloy Ni2MnAl/Fe bilayers
Journal of Physics D Applied Physics
May 2016
The role of chemical structure on the magnetic and electronic properties of Co<sub>2</s...
Applied Physics Letters
April 2016
The effect of atomic structure on interface spin-polarization of half-metallic spin val...
Applied Physics Letters
November 2015
Exchange Bias of Polycrystalline Heusler Alloy Thin Films
November 2015
Heusler Alloy Films for Spintronic Devices
November 2015
Roadmap for Emerging Materials for Spintronic Device Applications
IEEE Transactions on Magnetics
October 2015
Direct band-gap measurement on epitaxial Co<sub>2</sub>FeAl<sub>0.5</sub>Si<sub>0.5</su...
Journal of Applied Physics
May 2015
Optimisation of geometrical ratchets for spin-current amplification
Journal of Applied Physics
May 2015
Domain wall pinning for racetrack memory using exchange bias
May 2015
Dependence of Curie temperature on Pt layer thickness in Co/Pt system
Applied Physics Letters
March 2015
FOREWORD
SPIN
December 2014
POLYCRYSTALLINE CO-BASED FULL-HEUSLER-ALLOY FILMS FOR SPINTRONIC DEVICES
SPIN
December 2014
Spin-current signal amplification by a geometrical ratchet
Journal of Physics D Applied Physics
November 2014
New Bandgap Measurement Technique for a Half-Metallic Ferromagnet
IEEE Transactions on Magnetics
November 2014
Domain wall pinning for racetrack memory using exchange bias
Applied Physics Letters
October 2014
Over 50% reduction in the formation energy of Co-based Heusler alloy films by two-dimen...
Applied Physics Letters
July 2014
Correlations between atomic structure and giant magnetoresistance ratio in Co<sub>2</su...
Journal of Physics D Applied Physics
July 2014
Growth of polycrystalline Heusler alloys for spintronic devices
Journal of Physics D Applied Physics
June 2014
Investigation of the temperature-dependence of ferromagnetic resonance and spin waves i...
Applied Physics Letters
June 2014
Effect of grain cutting in exchange biased nanostructures
Journal of Applied Physics
May 2014
Optimization of exchange bias in Co<sub>2</sub>FeAl<sub>0.5</sub>Si<sub>0.5</sub> Heusl...
Journal of Applied Physics
May 2014
Future perspectives for spintronic devices
Journal of Physics D Applied Physics
April 2014
The Effect of Cobalt-Sublattice Disorder on Spin Polarisation in Co2FexMn1−xSi Heusler ...
Materials
February 2014
Correlation of Microstructure and Transport Properties of Multilayered Graphene Spin Va...
Journal of Physics Conference Series
November 2013
Heusler-alloy films for spintronic devices
Applied Physics A
March 2013
Uniaxial anisotropy of two-magnon scattering in an ultrathin epitaxial Fe layer on GaAs
Applied Physics Letters
February 2013
Correlating the interface structure to spin injection in abrupt Fe/GaAs(001) films
Physical Review B
January 2013
Room-temperature structural ordering of a Heusler compound Fe3Si
Physical Review B
November 2012
Effect of Interface Structure on Exchange Biased Heusler Alloy Films
IEEE Transactions on Magnetics
November 2012
Effect of Seed Layers on Polycrystalline ${\rm Co}_{2}{\rm FeSi}$ Thin Films
IEEE Transactions on Magnetics
November 2012
Magnetic Properties of Epitaxial Co-Evaporated Fe:MgO Anti-Granular Films
IEEE Transactions on Magnetics
November 2012
The effect of interfaces on magnetic activation volumes in single crystal Co<sub>2</sub...
Applied Physics Letters
September 2012
Observation of Magnetic-Switching and Multiferroic-Like Behavior of Co Nanoparticles in...
Advanced Functional Materials
June 2012
Growth and characterization of thin Cu-phthalocyanine films on MgO(001) layer for organ...
Nanoscale Research Letters
January 2012
Layer-by-layer crystallization of Co2FeSi Heusler alloy thin films
Journal of Physics D Applied Physics
December 2011
Temperature estimation in a ferromagnetic Fe–Ni nanowire involving a current-driven dom...
Journal of Physics Condensed Matter
December 2011
Activation Volumes in Co$_{2}$FeSi Thin Films
IEEE Transactions on Magnetics
October 2011
Atomic Interfacial Structures in Fe/GaAs Films
IEEE Transactions on Magnetics
October 2011
Enhancement of Exchange Bias in the ${\rm Co}_{2}{\rm FeSi/IrMn}$ System
IEEE Transactions on Magnetics
October 2011
Spin-transfer-torque-induced phenomena
Journal of Physics D Applied Physics
September 2011
Effect of grain size on exchange-biased Heusler alloys
Journal of Physics D Applied Physics
August 2011
The effect of film and interface structure on the transport properties of Heusler based...
Applied Physics Letters
June 2011
Interfacial structure and transport properties of Fe/GaAs(001)
Journal of Applied Physics
April 2011
Optimization of exchange-biased Heusler alloys
Journal of Physics D Applied Physics
March 2011
Schottky Barrier Height in Fe/GaAs Films
IEEE Transactions on Magnetics
June 2010
Interfacial structure and magnetic properties of Co2FeAl0.5Si0.5/MgO heterostructures
Journal of Applied Physics
May 2010
Si segregation in polycrystalline Co2MnSi films with grain-size control
Applied Physics Letters
December 2009
Current manipulation of a vortex confined in a micron-sized Fe19Ni81 disk
Applied Physics Letters
September 2009
Anomalous Hall voltage rectification and quantized spin-wave excitation induced by simu...
Physical Review B
June 2009
Observation of a bias-dependent constrained magnetic wall in a Ni point contact
Physical Review B
December 2008
Spin polarization control through resonant states in an Fe/GaAs Schottky barrier
Physical Review B
December 2008
Broadband ferromagnetic resonance ofNi81Fe19wires using a rectifying effect
Physical Review B
September 2008
DC electrical response and impedance change induced by a microwave signal in a patterne...
August 2008
A silicon metal-oxide-semiconductor field-effect transistor Hall bar for scanning Hall ...
Review of Scientific Instruments
August 2008
Effect of ferromagnetism on AB oscillations in a normal-metal ring
Physical Review B
April 2008
Domain formation induced by perpendicular spin injection
Journal of Magnetism and Magnetic Materials
March 2007
Current-induced vortex-vortex switching in a nanopillar comprising two Co nano-rings
Applied Physics Letters
February 2007
Magnetic characterization and switching of Co nanorings in current-perpendicular-to-pla...
Applied Physics Letters
January 2007
Temperature dependence of intrinsic switching current of a Co nanomagnet
Applied Physics Letters
December 2006
Estimation of local and nonlocal contributions to the current-induced magnetization swi...
Physical Review B
October 2006
Spin-transfer-induced magnetic domain formation
Journal of Applied Physics
October 2006
Structural and electrical properties of InSe polycrystalline films and diode fabrication
Thin Solid Films
July 2006
Heusler alloy/semiconductor hybrid structures
Current Opinion in Solid State and Materials Science
April 2006
Influence of capping layer on the current-induced magnetization switching in magnetic n...
Journal of Applied Physics
April 2006
Magnetic transport mechanism in double ferromagnetic tunnel junctions with two-dimensio...
IEEE Transactions on Magnetics
October 2005
Magnetic properties of epitaxial Co/sub 2/Cr/sub 1-x/Fe/sub x/Al full Heusler alloy thi...
IEEE Transactions on Magnetics
October 2005
Distinctive current-induced magnetization switching in a current-perpendicular-to-plan...
Applied Physics Letters
June 2005
Magnetic properties of L21-structured Co2(Cr,Fe)Al films grown on GaAs(001) substrates
Journal of Applied Physics
May 2005
Structural and magnetic properties of epitaxial L21-structured Co2(Cr,Fe)Al films grown...
Journal of Applied Physics
May 2005
Erratum: Corrigendum: Substantial reduction of critical current for magnetization switc...
Nature Materials
April 2005
Bias voltage effect on tunnel magnetoresistance in fully epitaxial MgO double-barrier m...
Applied Physics Letters
February 2005
Significant Magnetoresistance Enhancement due to a Cotunneling Process in a Double Tunn...
Physical Review Letters
February 2005
Tunnel magnetoresistance enhancement in ferromagnetic tunnel junctions with ferromagnet...
January 2005
Tunnel magnetoresistance in fully epitaxial MgO double barrier magnetic tunnel junctions
January 2005
Spin-dependent quantum oscillations in magnetic tunnel junctions with Ru quantum wells
Physical Review B
November 2004
Magnetoresistance in tunnel junctions using Co2(Cr,Fe)Al full Heusler alloys
Journal of Applied Physics
June 2004
Substantial reduction of critical current for magnetization switching in an exchange-bi...
Nature Materials
May 2004
Effective Reduction of Critical Current for Current-Induced Magnetization Switching by ...
Physical Review Letters
April 2004
Highly efficient spin filtering of ballistic electrons
Physical Review B
April 2004
Magnetic switching properties of magnetic tunnel junctions using a synthetic ferrimagne...
Journal of Applied Physics
April 2004
Electron spin filtering in ferromagnet/semiconductor heterostructures
Journal of Physics D Applied Physics
September 2003
Ballistic spin filtering across ferromagnet/semiconductor interfaces at room temperature
July 2002
Geometric coercivity scaling in magnetic thin film antidot arrays
Journal of Magnetism and Magnetic Materials
April 2002
Influence of crystalline structures on the domain configurations in controlled mesoscop...
Journal of Applied Physics
January 2002
Test of ballistic spin-polarized electron transport across ferromagnet/semiconductor Sc...
Journal of Applied Physics
January 2002
Effects of interdot dipole coupling in mesoscopic epitaxial Fe[100] dot arrays
IEEE Transactions on Magnetics
July 2001
Correction to "Spin-polarized electron transport processes at the ferromagnet/semicondu...
IEEE Transactions on Magnetics
July 2001
Spin-polarized electron transport in ferromagnet/semiconductor hybrid structures (invited)
Journal of Applied Physics
June 2001
Domain-wall trapping in controlled mesoscopic ferromagnetic wire junctions
Journal of Magnetism and Magnetic Materials
May 2001
Spin-polarized electron transport in a NiFe/GaAs Schottky diode
Journal of Magnetism and Magnetic Materials
May 2001
Spin-polarized electron transport in ferromagnet/semiconductor hybrid structures induce...
February 2001
Magnetoresistance of a domain wall at a submicron junction
June 2000
Domain wall trapping in controlled submicron ferromagnetic elements
Journal of Applied Physics
May 2000
Micromagnetism in mesoscopic epitaxial Fe dot arrays
Journal of Applied Physics
May 2000
Spin-dependent electron transport in NiFe/GaAs Schottky barrier structures
Journal of Applied Physics
May 2000
Domain nucleation processes in mesoscopic Ni80Fe20 wire junctions
Journal of Applied Physics
March 2000
Magnetic nanoscale dots on colloid crystal surfaces
Applied Physics Letters
February 2000
Magnetic domain studies of permalloy wire-based structures with junctions
IEEE Transactions on Magnetics
January 2000
Magnetization reversal in mesoscopic Ni/sub 80/Fe/sub 20/ wires: a magnetic domain laun...
IEEE Transactions on Magnetics
January 2000
Spin-polarized electron transport processes at the ferromagnet/semiconductor interface
IEEE Transactions on Magnetics
January 2000
Domain wall trapping probed by magnetoresistance and magnetic force microscopy in submi...
Journal of Applied Physics
April 1999
Easy-axis transition in epitaxial face-centered-cubic Ni80Fe20/Ni/Cu(100)
Journal of Applied Physics
April 1999
Spin-dependent electron transport at the ferromagnet/semiconductor interface
Journal of Applied Physics
April 1999
Effect of junction geometry on switching field and reversal behavior in permalloy wires
IEEE Transactions on Magnetics
January 1999
Influence of lateral geometry on magnetoresistance and magnetisation reversal in Ni/sub...
IEEE Transactions on Magnetics
January 1999
Magnetic domain evolution in permalloy mesoscopic dots
IEEE Transactions on Magnetics
January 1999
Magnetic domain evolution in permalloy mesoscopic dots
January 1999
Magnetization reversal and magnetic anisotropy in Co network nanostructures
IEEE Transactions on Magnetics
January 1999
Pseudo-Hall effect and anisotropic magnetoresistance in a micron-scale Ni/sub 80/Fe/sub...
IEEE Transactions on Magnetics
January 1999
Spin dependent electron transport through the ferromagnet/semiconductor interface induc...
January 1999
Spin-dependent electron transport through the ferromagnet/semiconductor interface induc...
IEEE Transactions on Magnetics
January 1999
Magnetic properties of martensite in Fe-Ni alloy measured by means of scanning probe mi...
Journal of Magnetism and Magnetic Materials
January 1998
Micromagnetic configurations of martensite in Fe-Ni alloys
Journal of Applied Physics
April 1997
Influence of crystalline structure on micromagnetic domain formation