KOINE Project Division

Research Output 1986 2014

  • 18 Article
  • 2 Conference contribution
  • 2 Conference article
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Article
2014
17 Citations (Scopus)

Effects of hydrogen intercalation on transport properties of quasi-free-standing monolayer graphene

Tanabe, S., Takamura, M., Harada, Y., Kageshima, H. & Hibino, H., Jan 1 2014, In : Japanese Journal of Applied Physics. 53, 4 SPEC. ISSUE, 04EN01.

Research output: Contribution to journal › Article

Intercalation
intercalation
Transport properties
Graphene
Monolayers
8 Citations (Scopus)

Josephson coupling through one-dimensional ballistic channel in semiconductor-superconductor hybrid quantum point contacts

Irie, H., Harada, Y., Sugiyama, H. & Akazaki, T., Apr 21 2014, In : Physical Review B - Condensed Matter and Materials Physics. 89, 16, 165415.

Research output: Contribution to journal › Article

Critical currents
Point contacts
Ballistics
ballistics
Superconducting materials
2013
77 Citations (Scopus)

Edge channel transport in the InAs/GaSb topological insulating phase

Suzuki, K., Harada, Y., Onomitsu, K. & Muraki, K., Jun 18 2013, In : Physical Review B - Condensed Matter and Materials Physics. 87, 23, 235311.

Research output: Contribution to journal › Article

Inelastic scattering
Heterojunctions
Geometry
Electric potential
inelastic scattering
15 Citations (Scopus)

Slow noise processes in superconducting resonators

Burnett, J., Lindström, T., Oxborrow, M., Harada, Y., Sekine, Y., Meeson, P. & Tzalenchuk, A. Y., Apr 5 2013, In : Physical Review B - Condensed Matter and Materials Physics. 87, 14, 140501.

Research output: Contribution to journal › Article

Superconducting resonators
Resonators
resonators
flicker
Microwaves
3 Citations (Scopus)

Unipolar behavior in graphene-channel field-effect-transistors with n-type doped SiC source/drain regions

Nagahisa, Y., Harada, Y. & Tokumitsu, E., Nov 25 2013, In : Applied Physics Letters. 103, 22, 223503.

Research output: Contribution to journal › Article

graphene
field effect transistors
annealing
vacuum
2012
66 Citations (Scopus)

Diamond field-effect transistors with 1.3A/mm drain current density by Al 2O 3 passivation layer

Hirama, K., Sato, H., Harada, Y., Yamamoto, H. & Kasu, M., Sep 1 2012, In : Japanese journal of applied physics. 51, 9, 090112.

Research output: Contribution to journal › Article

Drain current
Field effect transistors
Passivation
passivity
Diamonds
9 Citations (Scopus)

High-temperature characteristics in normally off AlGaN/GaN heterostructure field-effect transistors with recessed-gate enhanced-barrier structures

Maeda, N., Hiroki, M., Sasaki, S. & Harada, Y., Aug 1 2012, In : Applied Physics Express. 5, 8, 084201.

Research output: Contribution to journal › Article

High electron mobility transistors
field effect transistors
threshold voltage
high current
high voltages
4 Citations (Scopus)

In 0:75Ga0:25as quantum point contacts utilizing wrap-gate geometry

Irie, H., Harada, Y., Sugiyama, H. & Akazaki, T., Feb 1 2012, In : Applied Physics Express. 5, 2, 024001.

Research output: Contribution to journal › Article

wrap
Point contacts
Geometry
geometry
constrictions
14 Citations (Scopus)

Quantum hall effect and carrier scattering in quasi-free-standing monolayer graphene

Tanabe, S., Takamura, M., Harada, Y., Kageshima, H. & Hibino, H., Dec 1 2012, In : Applied Physics Express. 5, 12, 125101.

Research output: Contribution to journal › Article

Quantum Hall effect
quantum Hall effect
Graphene
Carrier concentration
Monolayers
1996
11 Citations (Scopus)

Cooper-pair tunneling in small junctions with tunable Josephson coupling

Harada, Y., Takayanagi, H. & Odintsov, A. A., Jan 1 1996, In : Physical Review B - Condensed Matter and Materials Physics. 54, 9, p. 6608-6613 6 p.

Research output: Contribution to journal › Article

SQUIDs
Networks (circuits)
compressing
charging
electromagnetism
10 Citations (Scopus)

Flux flow and vortex tunneling in two-dimensional arrays of small Josephson junctions

Chen, C., Delsing, P., Haviland, D., Harada, Y. & Claeson, T., Jan 1 1996, In : Physical Review B - Condensed Matter and Materials Physics. 54, 13, p. 9449-9457 9 p.

Research output: Contribution to journal › Article

Josephson junctions
Vortex flow
vortices
Fluxes
Bias currents
1994
44 Citations (Scopus)

Fabrication and measurement of a Nb based superconducting single electron transistor

Harada, Y., Haviland, D. B., Delsing, P., Chen, C. D. & Claeson, T., Dec 1 1994, In : Applied Physics Letters. 65, 5, p. 636-638 3 p.

Research output: Contribution to journal › Article

single electron transistors
resonant tunneling
tunnel junctions
niobium
capacitance
2 Citations (Scopus)

Magnetic flux and gate voltage modulation of the current in a superconducting loop of ultra-small tunnel junctions

Harada, Y., Haviland, D. B., Chen, C. D., Delsing, P. & Claeson, T., Feb 2 1994, In : Physica B: Physics of Condensed Matter. 194-196, PART 1, p. 1015-1016 2 p.

Research output: Contribution to journal › Article

Tunnel junctions
Magnetic flux
tunnel junctions
magnetic flux
Capacitance
1992
1 Citation (Scopus)

Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz

Uzawa, Y., Kawate, E., Hirose, N., Motohashi, I., Harada, Y., Sekine, M., Miki, Y. & Okaji, M., Dec 1 1992, In : Applied Physics Letters. 61, 8, p. 967-969 3 p.

Research output: Contribution to journal › Article

Josephson effect
thin films
niobium
infrared lasers
electric potential
4 Citations (Scopus)

New Positive EB Resist with Strong Resistance to Plasma Damage

Yamaguchi, K., Ozaki, H., Hirao, A., Hirose, N., Harada, Y., Uzawa, Y., Sekine, M., Yoshimori, S. & Kawamura, M., Mar 1992, In : Journal of the Electrochemical Society. 139, 3, p. L33-L34

Research output: Contribution to journal › Article

Positrons
Methylmethacrylate
Electron beams
Methacrylates
Copolymers
1991
1 Citation (Scopus)

Analysis of quasiparticle injection three-terminal device

Harada, Y., Hirose, N., Uzawa, Y., Yoshimori, S., Sekine, M. & Kawamura, M., Jan 1 1991, In : Infrared Physics. 32, C, p. 129-137 9 p.

Research output: Contribution to journal › Article

Energy gap
injection
Current voltage characteristics
Transistors
transistors
3 Citations (Scopus)

Properties of the nb thin-film nanobridges prepared by nanometer fabrication process

Harada, Y., Hirose, N. & Uzawa, Y., Dec 1991, In : Japanese Journal of Applied Physics. 30, 12, p. 3933-3937 5 p.

Research output: Contribution to journal › Article

Reactive ion etching
Nanotechnology
Electron beams
Radiation
Fabrication
1990

Microcontact Josephson triode fabricated by self-alignment process technique

Hirose, N., Harada, Y., Yoshimori, S. & Kawamura, M., Jan 1 1990, In : Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi). 73, 1, p. 1-7 7 p.

Research output: Contribution to journal › Article

self alignment
Triodes
triodes
oscillators
Negative resistance