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 journalArticle

Intercalation
intercalation
Transport properties
Graphene
Monolayers
8 Citations (Scopus)
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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

Reactive ion etching
Nanotechnology
Electron beams
Radiation
Fabrication
1990
self alignment
Triodes
triodes
oscillators
Negative resistance