Updated on October 1, 2020 English version is here.
Total: 171 papers, Average Citations 19 h-index 32
First author: 17 paper, Average Citations 32.94 h-index 11
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Scholor Citations (Automaticlly updated)
Single-electron transfer and dynamics, Tunable-barrier single-electron transistor and
double quantum dots, Single-dopant device
[1]
S. P. Giblin, E. Mykkänen, A. Kemppinen, P. Immonen, A. J. Manninen, M. Jenei, M. Möttönen, G. Yamahata, A.
Fujiwara and M. Kataoka, Realisation of a quantum current standard at liquid helium
temperature with sub-ppm reproducibility,
Metrologia doi.org/10.1088/1681-7575/ab72e0 (2020).
[2]
(Published in Nature Nanotech. !)G. Yamahata,
S. Ryu, N. Johnson, H-S. Sim, A. Fujiwara, and M. Kataoka, Picosecond coherent electron motion in a silicon
single-electron source, Nature Nanotechnology 14, 1019–1023 (2019).
[3]
N. Johnson, G. Yamahata, and A. Fujiwara,
Measurement of the curvature and height of the potential barrier for a dynamic
quantum dot, Appl. Phys. Lett. 115, 162103 (2019).
[4]
S. Giblin, A. Fujiwara, G. Yamahata, M. H.
Bae, N. Kim, A. Rossi, M. Möttönen, and M. Kataoka, Evidence for universality of tunable-barrier
electron pumps, Metrologia 56, 044004 (2019).
[5]
G. Yamahata, S. P. Giblin, M. Kataoka, and T. Karasawa, and A.
Fujiwara, High-accuracy current generation in the nanoampere regime from a silicon
single-trap electron pump, Scientific Reports 7, 45137 (2017).
[6] G. Yamahata,
S. P. Giblin, M. Kataoka, T. Karasawa,
and A. Fujiwara, Gigahertz single-electron pumping in silicon with an accuracy
better than 9.2 parts in 107, Appl. Phys. Lett. 109, 013101 (2016).
( See
http://www.npl.co.uk/news/record-speed-and-accuracy-achieved-with-single-electron-pumps
)
[7] G. Yamahata,
T. Karasawa, and A. Fujiwara, Gigahertz single-hole
transfer in Si tunable-barrier pumps, Appl. Phys. Lett. 106, 023112 (2015).
[8]
G. Yamahata, K. Nishiguchi, and A.
Fujiwara, Gigahertz single-trap electron pumps in silicon, Nat. Commun. 5, 5038 (2014).
[9]
G. Yamahata, K. Nishiguchi, and A. Fujiwara: Accuracy
evaluation and mechanism crossover of single-electron transfer in Si
tunable-barrier turnstiles Phys. Rev. B 89, 165302 (2014).
[10] G. Lansbergen, Y. Ono and A.
Fujiwara: Donor based single electron pumps with tunable donor binding
energy, Nano Lett. 12 763−768 (2012).
[11]
G. Yamahata, K.
Nishiguchi, and A. Fujiwara: Accuracy evaluation of single-electron huttle transfer in Si nanowire metal-oxide-semiconductor
field-effect transistors, Appl. Phys. Lett. 98, 222104 (2011).
[12]
S. Miyamoto, K. Nishiguchi, Y. Ono, K. M. Itoh, and A.
Fujiwara: Resonant escape over an oscillating barrier in a single-electron
ratchet transfer, Phys. Rev. B 82, 033303 (2010).
[13]
S. Miyamoto, K. Nishiguchi, Y. Ono, K M. Itoh, and
A. Fujiwara: Escape dynamics of a few electrons in a single-electron ratchet using
silicon nanowire metal-oxide-semiconductor field-effect transistor, Appl. Phys.
Lett. 93, 222103 (2008).
[14]
A. Fujiwara, K. Nishiguchi, and Y. Ono: Nanoampere
charge pump by single-electron ratchet using silicon nanowire
metal-oxide-semiconductor field-effect transistor: Appl. Phys. Lett. 92,
042102 (2008).
[15]
H. W. Liu, T. Fujisawa, Y.
Ono, H. Inokawa, A. Fujiwara, K. Takashina, and Y.
Hirayama: Pauli-spin-blockade transport through a silicon double quantum dot, Phy. Rev. B 77, 073310
(2008).
[16] M. A. H. Khalafalla, Y. Ono, K. Nishiguchi, and
A. Fujiwara: Identification of single and coupled acceptors in silicon nano-field-effect transistors, Applied Physics Letters 91, 263513 (2007).
[17]
A. Fujiwara, H. Inokawa, K.
Yamazaki, H. Namatsu, Y. Takahashi, N. M. Zimmerman,
and S. B. Martin: Single electron tunneling transistor with tunable barriers
using silicon nanowire metal-oxide-semiconductor field-effect transistor, Appl. Phys. Lett. 88 053121
(2006).
[18]
A.
Fujiwara, N. M. Zimmerman, Y. Ono, and Y. Takahashi: Current quantization due
to single-electron transfer in Si-wire charge-coupled devices, Appl. Phys. Lett. 84, 1323-1325 (2004).
[19]
A.
Fujiwara and Y. Takahashi: Manipulation of elementary charge in a silicon
charge-coupled device, Nature 410, 560-562 (2001).
Single-electron
detection and counting statistics / stochastic resonance
[1]
(Published in Nature Com. !) K Chida, S.
Desai, K Nishiguchi, and A Fujiwara: Power generator driven by Maxwell's demon,
Nat. Commun. 8, 15310 (2017).
[2]
K Chida, K Nishiguchi, G Yamahata, H Tanaka, A Fujiwara: Thermal-noise suppression
in nano-scale Si field-effect transistors by feedback
control based on single-electron detection, Appl. Phys. Lett. 107, 073110, 2015 (2015).
[3]
P. A. Carles, K Nishiguchi, and A
Fujiwara: Deviation from the law of energy equipartition in a small
dynamic-random-access memory, Jpn. J. Appl. Phys. 54,
06FG03 (2015).
[4] K. Nishiguchi, Y. Ono, and A.
Fujiwara: Single-electron thermal noise, Nanotechnology 25, 275201 (2014).
[5]
K. Nishiguchi, H. Yamaguchi, A. Fujiwara, H. S. J.
van der Zant, and G. A. Steele, Wide-bandwidth charge
sensitivity with a radio-frequency field-effect Transistor, Appl. Phys. Lett. 103,
143102 (2013).
[6]
K. Nishiguchi and A. Fujiwara: Detecting signals
buried in noise via nanowire transistors using stochastic resonance, Appl.
Phys. Lett. 101, 193108 (2012).
[7]
K. Nishiguchi and A. Fujiwara: Single-Electron
Stochastic Resonance Using Si Nanowire Transistors, Jpn.
J. Appl. Phys. 50, 06GF04 (2011)..
[8] K. Nishiguchi, N. Clement, T. Yamaguchi, and A. Fujiwara: Si nanowire
ion-sensitive field-effect transistors with a shared floating gate, APPLIED PHYSICS LETTERS 94,
163106 (2009).
[9] K. Nishiguchi and A. Fujiwara: Single-electron counting statistics and
its circuit application in nanoscale field-effect transistors at room
temperature, Nanotechnology 20
175201 (2009).
Functional nanotransistors, sensors, molecular electronics
[1]
(Published in Nature Com !) H. Firdaus,
T. Watanabe, M. Hori, D. Moraru, Y. Takahashi, A.
Fujiwara, and Y. Ono, Electron aspirator using electron–electron scattering in
nanoscale silicon, Nature Communications 9, 4813 (2018)
[2]
(Published in Nature Materials !) R. Sivakumarasamy,
R. Hartkamp, B. Siboulet,
J.-F. Dufreche, K. Nishiguchi, A. Fujiwara, and N.
Clément, Selective-layer-free Blood Serum Ionogram based on Ion-specific
Interactions with a Nanotransistor, Nature Materials
17 464 (2018).
[3]
N. Clement and A. Fujiwara, Molecular diodes: Breaking the Landauer limit, Nat. Nanotech. 12, 725 (2017).
[4]
N. Clément, K.
Nishiguchi, J. F. Dufreche, D. Guerin, A. Fujiwara,
and D. Vuillaume, Water Electrolysis and Energy
Harvesting with Zero-Dimensional Ion-Sensitive Field-Effect Transistors, Nano
Lett. 13, 3903−3908 (2013).
[5]
I. Mahboob, K. Nishiguchi, A. Fujiwara, and H.
Yamaguchi, Phonon Lasing in an Electromechanical Resonator , Phys. Rev. Lett.
110 127202 (2013).]
[6]
N. Clément, K. Nishiguchi, J. F. Dufreche,
D. Guerin, A. Fujiwara, and D. Vuillaume, A silicon
nanowire ion-sensitive field-effect transistor with elementary charge
sensitivity, Appl. Phys. Lett. 98, 014104 (2011).
[7]
I. Mahboob, E. Flurin, K.
Nishiguchi, A. Fujiwara, and H. Yamaguchi: Nature Communications 2, 198
doi:10.1038/ncomms1201 (2011).
[8]
N. Clément, K. Nishiguchi, A. Fujiwara and D. Vuillaume: One-by-one trap activation in silicon nanowire
transistors, Nature Communications 1 DOI:10.1038/ncomms1092 (2010).
Silicon
quantum well and optical properties
[1] J. Noborisaka,
K. Nishiguchi, A. Fujiwara: Electric tuning of direct-indirect optical
transitions in silicon, Scientific Reports 4, 6950 (2014).
[2] J. Noborisaka, K. Nishiguchi, Y. Ono, H. Kageshima, and A Fujiwara: Strong Stark effect in
electroluminescence from phosphorous-doped silicon-on-insulator
metal-oxide-semiconductor field-effect transistors, Appl. Phys. Lett. 98, 033503
(2011).
[3] J. Noborisaka, K. Nishiguchi, H. Kageshima, Y. Ono, and A Fujiwara: Tunneling spectroscopy
of electron subbands in thin silicon-on-insulator
metal-oxide-semiconductor field-effect transistors, Appl. Phys. Lett. 96,
112102 (2010).
Physics of Si 2DEG and valley physics in collaboration with Prof.
Hirayama (Tohoku Univ. ) and Dr. Takashina (Univ. of Bath) , Dr. Vincent Renard (CEA)
[1]
V. T. Renard, B. A. Piot, X. Waintal, G. Fleury, D. Cooper, Y. Niida,
D. Tregurtha, A. Fujiwara, Y. Hirayama and K.
Takashina, Valley polarization assisted spin polarization in two dimensions,
Nat. Commun. 6, 7230 (2015).
[2]
V. T. Renard, I. Duchemin, Y. Niida, A. Fujiwara,
Y. Hirayama and K. Takashina, Metallic behaviour in
SOI quantum wells with strong intervalley scattering,
Scientific reports | 3 : 2011 | DOI: 10.1038/srep02011 (2013).
[3]
K. Takashina, Y. Niida, V.
T. Renard, B. A. Piot, D. S. D. Tregurtha,
A. Fujiwara, and Y. Hirayama, Phys. Rev. B 88, 201301(R) (2013).
[4]
Y. Niida, K. Takashina, Y.
Ono, A. Fujiwara and Y. Hiryama: Electron and hole mobilities
at a Si/SiO2 interface with giant valley splitting, Appl. Phys. Lett. 102,
191603 (2013).
[5]
K. Takashina, Y. Niida,
V. T. Renard, A. Fujiwara, T. Fujisawa, K. Muraki, and Y.Hirayama: Impact of
Valley Polarization on the Resistivity in Two Dimensions, Phys. Rev. Lett. 106,
196403 (2011).
[6]
K. Takashina, K. Nishiguchi, Y. Ono, A.
Fujiwara, T. Fujisawa, Y. Hirayama, and K. Muraki:
Electrons and holes in a 40 nm thick silicon slab at cryogenic temperatures, APPLIED PHYSICS LETTERS 94, 142104
(2009).
[7]
Y. Niida, K.
Takashina, A. Fujiwara, T. Fujisawa, and Y. Hirayama: Spin splitting of upper
electron subbands in a SiO2/Si(100)/SiO2 quantum well
with in-plane magnetic field, APPLIED
PHYSICS LETTERS 94, 142101 (2009).
招待講演(筆頭)
[1]
A. Fujiwara, G. Yamahata, N.
Johnson, S. Ryu, H-S. Sim, and M. Kataoka,
Fast electron dynamics in a silicon dynamic quantum dot, Int. Workshop on Cool
Electrons in Flatlands (CEF2020) (June 15-24, 2020, Catania, Italy, held as
virtual workshop)
[2]
A. Fujiwara, Silicon nanodevices for metrology and
sensor applications, IEEE Nanotechnology Materials and Devices Conference (IEEE
NMDC2019) (Oct.. 27-30, 2019, Stockholm, Sweden)
[3]
A. Fujiwara, Ultimate electronics with silicon nanowire
MOSFETs, Workshop on Innovative Nanoscale Devices and Systems (WINDS) (Nov.
25-30, 2018, Hawaii, USA)
[4]
A. Fujiwara, G. Yamahata, K. Chida, and K. Nishiguchi, Tunable-barrier electron pump for
quantum current standards and information-to-energy converters China-Japan
International Workshop on Quantum Technologies, QTech2018 (Aug 23-24, 2018,
Hefei, China).
[5]
A. Fujiwara, Ultimate electronics with control of
single electrons, 7th Summer School on Semiconductor/Superconducting Quantum
Coherence Effect and Quantum Information (August 27-29, 2017, Shuzenji, Japan).
[6]
A. Fujiwara, K. Nishiguchi, G. Yamahata,
and K. Chida, Ultimate electronics with control of
single electrons, EM-NANO2017 (June 18-21, 2017, Fukui, Japan).
[7]
A. Fujiwara, K. Nishiguchi, G. Yamahata,
and K. Chida, Ultimate Single Electronics with
Silicon Nanowire MOSFETs, 2017 Silicon Nanoelectronics
Workshop (June 4-5, 2017, Kyoto, Japan).
[8]
A. Fujiwara, G. Yamahata, K.
Nishiguchi, S. P. Giblin, and M. Kataoka, Gigahertz
single-electron pump for quantum current standard, 33rd ICPS (Beijing, 31 July- 5 August,
2016)
[9] A. Fujiwara, G. Yamahata, and K. Nishiguchi, Gigahertz Single-Electron Pump
towards a Representation of the New Ampere, 2015 SSDM (Sapporo, 27-30
September, 2015).
[10] A. Fujiwara, G. Yamahata, J. Noborisaka, and K.
Nishiguchi, Nanoscale Silicon MOSFET for Metrology and Valleytronics
Applications, 2015 UK-Japan Silicon Nanoelectronics
and Nanotechnology Symposium (Southampton, 9-10 July, 2015).
[11] (Plenary talk)
A. Fujiwara, Silicon single-electron devices for ultimate electronics, EURAMET
DC & Quantum Metrology Meeting (Bern, 27-29 May 2015)
[12] A. Fujiwara, K. Nishiguchi, G. Yamahata,
Silicon nanowire MOSFETs for diverse applications, The 6th IEEE International Nanoelectronics Conference 2014 (INEC2014) (Sapporo, July
28-31, 2014)
[13] (Plenary talk) A. Fujiwara, Silicon-based nanodevices for diverse
applications, 39th Int. Conf. on Micro and Nano Engineering (MNE) (London, UK,
Sept. 16-19 2013).
[14] A. Fujiwara, G. Yamahata, K. Nishiguchi, G. P. Lansbergen and Y. Ono: Silicon Single-Electron Transfer
Devices: Ultimate Control of Electric Charge, 2012 Silicon Nanoelectronics
Workshop (June 2012, Hawaii, USA).
[15] A. Fujiwara, K. Nishiguchi, and Y. Ono: Single electron transfer
technology using Si nanowire MOSFETs, 2010 International Symposium on Atom-scale
Silicon Hybrid Nanotechnologies for ‘More-than-MooreE&
‘Beyond CMOSEEra (March 1 E 2, 2010,
Southampton, UK), Program and Abstracts, pp. 19 E20.)
[16] A. Fujiwara, K. Nishiguchi and Y. Ono: Single-electron devices based on
silicon nanowire MOSFETs, Trends in Nanotechnology (TNT2009) p.39 (September
7-11, 2009,Barcelona)
[17] A. Fujiwara, K. Nishiguchi and Y. Ono: Silicon Nanowire MOSFETs and Their
Application to Single-Electron Devices, International Conference on Nanoscience
and Technology (ChinaNANO) 2009, p. 50-51 (September
1-3, 2009,Beijing)
[18] A. Fujiwara, K. Nishiguchi, Y. Ono, H. Inokawa,
and Y. Takahashi: Silicon Single-Electron Devices and Their Applications, 2008
Tera-level NanoDevices (TND) Technical Forum (Soul,
2008.10.17).
[19] A. Fujiwara and Y. Takahashi: Si nano-devices
using an electron-hole system, 2nd International Conference on Semiconductor
Quantum Dots (QD2002) (2002.9).
[20] A. Fujiwara and Y. Takahashi: Si nano-devices
using an electron-hole system, Proceedings of 5th Europian
Workshop on Low Temperature Electronics, (Journal de Physiqye
IV, 12, No.Pr3), Ed. F Balestra, (WOLTE-5) pp.
Pr3-85-Pr3-92 (2002.6).
[21] A. Fujiwara, K. Yamazaki, and Y. Takahashi: Silicon Single-electron CCD,
2001 Int. Micreprocess and Nanotechnology Conference
(MNC) pp. 278-279 (2001.10).
[22] A. Fujiwara, Y. Takahashi, K. Yamazaki, H. Namatsu,
M. Nagase, K. Kurihara, and K. Murase Single-electron devices: recent attempts
towards high performance and functionality, 1999 Int. Conf. Solid State Devices
and Materials (SSDM) pp. 248-249 (1999).
[23] A. Fujiwara, Y. Takahashi, K. Yamazaki, H. Namatsu,
M. Nagase, K. Kurihara, and K. Murase:
Silicon single-electron devices fabricated by pattern-dependent oxidation
(PADOX), Sweden-Japan Joint QNANO Workshop (1998).
[24] A. Fujiwara, Y. Takahashi, K. Yamazaki, H. Namatsu,
M. Nagase, K. Kurihara, and K. Murase:
Silicon single-electron devices fabricated by pattern-dependent oxidation
(PADOX), International Symposium on Formation, Physics and Device Application
of Quantum Dot Structures (QDS98), (1998).
筆頭論文(抜粋)
[1]
A. Fujiwara, K. Nishiguchi, and Y. Ono: Nanoampere
charge pump by single-electron ratchet using silicon nanowire
metal-oxide-semiconductor field-effect transistor: Applied Physics
Letters 92, 042102 (2008).
[2] A. Fujiwara, H. Inokawa, K.
Yamazaki, H. Namatsu, Y. Takahashi, N. M. Zimmerman,
and S. B. Martin: Single electron tunneling transistor with tunable barriers
using silicon nanowire metal-oxide-semiconductor field-effect transistor, Applied
Physics Letters 88 053121
(2006).
[3] A. Fujiwara, N. M. Zimmerman, Y. Ono, and Y. Takahashi:
Current quantization due to single-electron transfer in Si-wire charge-coupled
devices, Applied Physics Letters 84,
1323-1325 (2004).
[4]
A. Fujiwara, S. Horiguchi, M.
Nagase, and Y. Takahashi: Threshold voltage of Si single-electron transistor, Japanese
Journal of Applied Physics Part 1-Regular Papers Short Notes & Review
Papers 42, 2429-2433 (2003).
[5]
A. Fujiwara, K. Yamazaki, and Y. Takahashi: Detection
of single charges and their generation-recombination dynamics in Si nanowires
at room temperature, Applied Physics Letters 80, 4567-4569
(2002).
[6]
A. Fujiwara and Y. Takahashi: Mechanism of
single-charge detection using electron-hole system in Si-wire transistors, Japanese
Journal of Applied Physics Part 1-Regular Papers Short Notes & Review
Papers 41, 1209-1213 (2002).
[7]
A. Fujiwara
and Y. Takahashi: Manipulation of elementary charge in a silicon charge-coupled
device, Nature 410, 560-562 (2001).
[8]
A. Fujiwara, Y. Takahashi, K. Yamazaki, H. Namatsu, M. Nagase, K. Kurihara,
and K. Murase: Double-island single-electron devices
- A useful unit device for single-electron logic LSI's, IEEE Transactions on
Electron Devices 46, 954-959 (1999).
[9]
A. Fujiwara, Y. Takahashi, H. Namatsu,
K. Kurihara, and K. Murase:
Suppression of effects of parasitic metal-oxide-semiconductor field-effect
transistors on Si single-electron transistors, Japanese Journal of Applied
Physics Part 1-Regular Papers Short Notes & Review Papers 37,
3257-3263 (1998).
[10] A. Fujiwara, Y. Takahashi, and K. Murase:
Observation of single electron-hole recombination and photon-pumped current in
an asymmetric Si single-electron transistor, Physical Review Letters 78, 1532-1535 (1997).
[11] A. Fujiwara,
Y. Takahashi, K. Murase, and M. Tabe:
Time-Resolved Measurement of Single-Electron Tunneling in a Si Single-Electron
Transistor with Satellite Si Islands, Applied Physics Letters 67,
2957-2959 (1995).