Publications:

Spin and valley polarization dependence of resistivity in two dimensions
K. Takashina, Y. Niida, V. T. Renard, B. A. Piot, D. S. D. Tregurtha, A. Fujiwara, and Y. Hirayama
PHYSICAL REVIEW B, 88, 201301(R) (2013)
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.201301

Metallic behaviour in SOI quantum wells with strong intervalley scattering (OPEN ACCESS - FREE TO READ!)
V. T. Renard, I. Duchemin, Y. Niida, A. Fujiwara, Y. Hirayama & K. Takashina
SCIENTIFIC REPORTS, 3, 2011 (2013)
http://www.nature.com/srep/2013/130618/srep02011/full/srep02011.html

Electron and Hole Mobilities at a Si/SiO2 Interface with Giant Valley Splitting
Y. Niida, K. Takashina, Y. Ono, A. Fujiwara and Y. Hirayama
APPLIED PHYSICS LETTERS, 102, 191603 (2013)
http://link.aip.org/link/doi/10.1063/1.4803014

Enhanced Droplet Control by Transition Boiling (OPEN ACCESS - FREE TO READ!)
Alex Grounds, Richard Still and Kei Takashina
SCIENTIFIC REPORTS,  2, 720 (2012)
URL: http://www.nature.com/srep/2012/121010/srep00720/full/srep00720.html

Impact of Valley Polarization on the Resistivity in Two Dimensions
K. Takashina, Y. Niida, V. T. Renard, A. Fujiwara, T. Fujisawa, K. Muraki, and Y. Hirayama
PHYSICAL REVIEW LETTERS, 106, 196403 (2011)
URL: http://prl.aps.org/abstract/PRL/v106/i19/e196403

Separately contacted monocrystalline silicon double-layer structure with an amorphous silicon dioxide barrier made by wafer bonding
K Takashina, M Nagase, K Nishiguchi, Y Ono, H Omi, A Fujiwara, T Fujisawa and K Muraki
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, Vol 25, 125001 (2010)
URL: http://iopscience.iop.org/0268-1242/25/12/125001/

Electrons and holes in a 40 nm thick silicon slab at cryogenic temperatures
K. Takashina, K. Nishiguchi, Y. Ono, A. Fujiwara, T. Fujisawa, Y. Hirayama and K. Muraki
APPLIED PHYSICS LETTERS, Vol. 94, 142104 (2009)
URL: http://link.aip.org/link/doi/10.1063/1.3112602

Spin splitting of upper electron subbands in a SiO2/Si(100)/SiO2 quantum well with in-plane magnetic field
Y. Niida, K. Takashina, A. Fujiwara, T. Fujisawa and Y. Hirayama,
APPLIED PHYSICS LETTERS, Vol. 94, 142101 (2009)
URL: http://link.aip.org/link/?APPLAB/94/142101/1

Negative Magnetoresistance of a Silicon 2DEG under In-plane Magnetic Field due to Spin-splitting of Upper Subbands
K. Takashina, Y. Niida, V. T. Renard, A. Fujiwara, T. Fujisawa and Y. Hirayama
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, Vol 23, No. 12-13, 2938 (2009).
URL: http://www.worldscinet.com/ijmpb/23/2312n13/S021797920906258X.html
doi: 10.1142/S021797920906258X

Pauli-spin-blockade transport through a silicon double quantum dot
H.W. Liu, T. Fujisawa, Y. Ono, H. Inokawa, A. Fujiwara, K. Takashina and Y. Hirayama
PHYSICAL REVIEW B, Vol. 77, 073310 (2008)
URL: http://link.aps.org/abstract/PRB/v77/e073310

Charge transport in boron-doped nano MOSFETs: Towards single-dopant electronics
Y. Ono, M.A.H. Khalafalla, K. Nishiguchi, K. Takashina, A. Fujiwara, S. Horiguchi, H. Inokawa and Y. Takahashi
APPLIED SURFACE SCIENCE, Vol. 254, 6252-6256 (2008)
URL of Journal: http://www.sciencedirect.com/science/journal/01694332
doi:10.1016/j.apsusc.2008.02.161

Anomalous resistance ridges along filling factor nu=4i
K. Takashina, M. Brun, T. Ota, D.K. Maude, A. Fujiwara, Y. Ono, Y. Takahashi and Y. Hirayama
PHYSICAL REVIEW LETTERS, 99, 036803 (2007)
URL: http://link.aps.org/abstract/PRL/v99/e036803

Spatial imaging of two-dimensional electronic states in semiconductor quantum wells
K. Suzuki, K. Kanisawa, C. Janer, S. Perraud, K. Takashina, T. Fujisawa and Y. Hirayama
PHYSICAL REVIEW LETTERS, 98, 136802 (2007)
URL: http://link.aps.org/abstract/PRL/v98/e136802

Temperature-dependent cyclotron resonance in a hybridized electron-hole system in InAs/GaSb heterostructures
C. Petchsingh, R.J. Nicholas, K. Takashina and N.J. Mason
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, Vol. 22, No. 3, 194-202 (2007)
URL: http://www.iop.org/EJ/abstract/0268-1242/22/3/004

Resistance ridges along filling factor nu=4i in SiO2/Si/SiO2 quantum wells
K. Takashina, M. Brun, T. Ota, D.K. Maude, A. Fujiwara, Y. Ono, Y. Takahashi and Y. Hirayama
Proceedings of the 28th International Conference on the Physics of Semiconductors
AIP CONFERENCE PROCEEDINGS, Vol. 893, p.625 (2007)
URL: http://link.aip.org/link/?APCPCS/893/625/1

Observation of subband standing waves in superlattices by low-temperature scanning tunneling spectroscopy
K. Suzuki, K. Kanisawa, S. Perraud, M. Ueki, K. Takashina, and Y. Hirayama
JOURNAL OF APPLIED PHYSICS, Vol. 101, 081705 (2007)
URL: http://link.aip.org/link/?JAPIAU/101/081705/1

Imaging of subbands in InAs/GaSb double quantum wells by low-temperature scanning tunneling spectroscopy
K. Suzuki, K. Kanisawa, S. Perraud, M. Ueki, K. Takashina, and Y. Hirayama
JOURNAL OF CRYSTAL GROWTH, Vol. 301, 97-100 (2007)
URL of Journal: http://www.sciencedirect.com/science/journal/00220248
doi:10.1016/j.jcrysgro.2006.11.251

Imaging of interference between incident and reflected electron waves at an InAs/GaSb heterointerface by
low-temperature scanning tunneling spectroscopy
K. Suzuki, K. Kanisawa, S. Perraud, M. Ueki, K. Takashina and Y. Hirayama
JAPANESE JOURNAL OF APPLIED PHYSICS, Vol. 46, No. 4B, 2618-2621 (2007)
URL: http://jjap.ipap.jp/link?JJAP/46/2618/

Low temperature characteristics of ambipolar SiO2/Si/SiO2 Hall-bar devices
K. Takashina, B. Gaillard, Y. Ono and Y. Hirayama
JAPANESE JOURNAL OF APPLIED PHYSICS, Vol. 46, No. 4B, 2596-2598 (2007)
URL: http://jjap.ipap.jp/link?JJAP/46/2596/

Valley polarization in Si (100) at zero magnetic field
K. Takashina, Y. Ono, A. Fujiwara, Y. Takahashi and Y. Hirayama
PHYSICAL REVIEW LETTERS, 96, 236801 (2006)
URL: http://link.aps.org/abstract/PRL/v96/e236801

Impurity conduction in phosphorus-doped buried-channel silicon-on-insulator field-effect transistors at temperatures between 10 and 295 K
Y. Ono, J. Morizur, K. Nishiguchi, K. Takashina, H. Yamaguchi, K. Hiratsuka, S. Horiguchi, H. Inokawa and Y. Takahashi
PHYSICAL REVIEW B, 74, 235317 (2006)
URL: http://link.aps.org/abstract/PRB/v74/e235317

Current-driven breakdown of the quantized Hall states of a broken-gap 2D electron-hole system
K. Takashina, R.J. Nicholas, B. Kardynal, N.J. Mason, D.K. Maude and J.C. Portal.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, Vol. 21, No. 12, 1758-1763 (2006)
URL: http://www.iop.org/EJ/abstract/0268-1242/21/12/045

Imaging of electron standing waves in InAs/GaSb superlattices by low-temperature scanning tunnelling spectroscopy
K. Suzuki, K. Kanisawa, S. Perraud, M. Ueki, K. Takashina and Y. Hirayama
PHYSICA STATUS SOLIDI (C), Vol. 3, 643-646 (2006)
URL: http://www3.interscience.wiley.com/journal/112456132/abstract
doi:10.1002/pssc.200564137

Intersubband scattering in double-gate MOSFETs
K. Takashina, Y. Ono, A. Fujiwara, Y. Takahashi and Y. Hirayama
IEEE TRANSACTIONS ON NANOTECHNOLOGY, 5, 430-435 (2006)
URL of Journal: http://ieeexplore.ieee.org/servlet/opac?punumber=7729
doi:10.1109/TNANO.2006.880425

Controlled multiple quantum coherences of nuclear spins in a nanometre-scale device
G. Yusa, K. Muraki, K. Takashina, K. Hashimoto and Y. Hirayama
NATURE, 434, 1001-1005 (2005)
URL: http://www.nature.com/nature/journal/v434/n7036/full/nature03456.html

Control of valley and spatial subbands in double-gate MOSFETs
- Electronic states in a silicon quantum well
K. Takashina, Y. Ono, A. Fujiwara, Y. Takahashi and Y. Hirayama
IEIC TECHNICAL REPORT
(Institute of Electronics, Information and Communication Engineers), Vol. 105, No. 155,
(SDM2005 87-104), 39-42(2005)
URL: http://sciencelinks.jp/j-east/article/200519/000020051905A0685734.php

Landau level hybridization and the quantum Hall effect in InAs/(AlSb)/GaSb electron -hole systems
K. Suzuki, K. Takashina, S. Miyashita and Y. Hirayama
PHYSICAL REVIEW LETTERS, 93, 016803 (2004)
URL: http://link.aps.org/abstract/PRL/v93/e016803

Effects of electron-hole hybridization on cyclotron resonance in InAs/GaSb heterostructures
C. Petchsingh, R.J. Nicholas, K. Takashina, N.J. Mason and J. Zeman
PHYSICAL REVIEW B, 70, 155306 (2004)
URL: http://link.aps.org/abstract/PRB/v70/e155306

Valley splitting control in SiO2/Si/SiO2 quantum wells in the quantum Hall regime
K. Takashina, A. Fujiwara, S. Horiguchi, Y. Takahashi and Y. Hirayama
PHYSICAL REVIEW B (Rapid Communications), 69, 161304 (2004)
URL: http://link.aps.org/abstract/PRB/v69/e161304

Resistance spikes induced by gate-controlled valley-splitting in silicon
K. Takashina, A. Fujiwara, Y. Takahashi and Y. Hirayama
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, Vol. 18, 27/29, 3603-3608 (2004)
URL of Journal: http://www.worldscinet.com/ijmpb/ijmpb.shtml
doi:10.1142/S0217979204027104

A silicon bi-layer system
K. Takashina, Y. Hirayama, A. Fujiwara, S. Horiguchi and Y. Takahashi
PHYSICA E, Vol. 22 pp 72-75 (2004)
URL of Journal: http://www.sciencedirect.com/science/journal/13869477
doi:10.1016/j.physe.2003.11.219

Quantum Hall effect in back-gated InAs/GaSb heterostructures under a tilted magnetic field
K. Suzuki, S. Miyashita, K. Takashina and Y. Hirayama
PHYSICA E, Vol. 20 pp 232-235 (2004)
URL of Journal: http://www.sciencedirect.com/science/journal/13869477
doi:10.1016/j.physe.2003.08.071

Insulating states of a broken-gap 2-dimensional electron-hole system
K. Takashina, R. J. Nicholas, B. Kardynal, N. J. Mason, D. K. Maude and J. C. Portal
PHYSICAL REVIEW B, 68, 235303 (2003)
URL: http://link.aps.org/abstract/PRB/v68/e235303

Quantum Hall and insulating states of a 2-D electron-hole system
K. Takashina, R. J. Nicholas, N. J. Mason, D. K. Maude and J. C. Portal
PHYSICA E, Vol. 20, pp 160-171 (2003)
URL of Journal: http://www.sciencedirect.com/science/journal/13869477
doi:10.1016/j.physe.2003.09.033

Quantum Hall effects at Landau level crossings
Y. Hirayama, K. Muraki, K. Hashimoto, K. Takashina and T. Saku
PHYSICA E, Vol. 20, pp133-142 (2003)
URL of Journal: http://www.sciencedirect.com/science/journal/13869477
doi:10.1016/j.physe.2003.09.030

Metallic and insulating states of a broken gap 2-D electron-hole system
K.Takashina, R.J. Nicholas, B. Kardynal, N.J. Mason, D.K. Maude and J. Portal
Proceedings of SemiMag 15, Inst. Phys. Conf. Ser. 171, (2003), in CD-ROM (Not online)

Breakdown of the quantum Hall effect in an electron-hole system
K.Takashina, R.J. Nicholas, B. Kardynal, N.J. Mason, D.K. Maude and J. Portal
Proceedings of ICPS 26, Inst. Phys. Conf. Ser. 171, (2003), in CD-ROM (Not online)

Observation of magneto-photoluminescence from a GaN/AlxGa1-xN heterojunction
P. A. Shields, R. J. Nicholas, K. Takashina, N. Grandjean, and J. Massies
PHYSICAL REVIEW B, 65, 195320 (2002)
URL: http://link.aps.org/abstract/PRB/v65/e195320

Mass enhancement and electron-hole coupling studied by cyclotron resonance in InAs/GaSb bilayers
C. Petchsingh, R.J. Nicholas, K. Takashina, N.J. Mason, P.J. Walker and J. Zeman
PHYSICA E, Vol. 12/1-4 pp 289-292 (2002)
URL of Journal: http://www.sciencedirect.com/science/journal/13869477
doi:10.1016/S1386-9477(01)00272-7

The quantum Hall effect in an InAs/GaSb based electron-hole system and its current-driven breakdown
K. Takashina, R.J. Nicholas, B. Kardynal, N.J. Mason, D.K. Maude and J. Portal
PHYSICA E, Vol. 12/1-4 pp 161-164 (2002)
URL of Journal: http://www.sciencedirect.com/science/journal/13869477
doi:10.1016/S1386-9477(01)00292-2

Magnetotransport properties of antidot superlattices in coupled two-dimensional electron-hole gases
T.O. Stadlemann, B. Kardynal, R.J. Nicholas, K. Takashina and N.J. Mason
PHYSICA E, Vol. 12/1-4 pp 293-295 (2002)
URL of Journal: http://www.sciencedirect.com/science/journal/13869477
doi:10.1016/S1386-9477(01)00274-0

Electron-hole interactions and metal-insulator transitions in InAs/GaSb
R.J. Nicholas, K. Takashina, B. Kardynal, C. Petchsingh, N.J. Mason, D.K. Maude and J. Portal
Proc. NGS 10, IPAP Conf. Series 2, pp 9 -12 (2001)
URL of Book: http://www.ipap.jp/japanese/proceedings_j.html
(Only 1st page online at http://www.ipap.jp/proc/cs2/pdf/cs2_002f.pdf)

Edge effects in an insulating state of an electron-hole system in magnetic field
K. Takashina, R.J. Nicholas, B. Kardynal, N.J. Mason, D.K. Maude and J. Portal
PHYSICA B, Vol. 298/1-4 pp 28-32 (2001)
URL of Journal: http://www.sciencedirect.com/science/journal/09214526
doi:10.1016/S0921-4526(01)00249-6

Breakdown of the quantum Hall effect in an electron-hole system
K. Takashina, R.J. Nicholas, B. Kardynal, N.J. Mason, D.K. Maude and J. Portal
PHYSICA B, Vol. 298/1-4, pp 8-12 (2001)
URL of Journal: http://www.sciencedirect.com/science/journal/09214526
doi:10.1016/S0921-4526(01)00245-9

Insulating states of a two-dimensional electron-hole system in high magnetic field
K. Takashina, R.J. Nicholas, B. Kardynal, N.J. Mason, D.K. Maude and J. Portal
Proc. ICPS 25, Springer Proceedings in Physics 87, II, 895 (2001) (Not online)

Magnetotransport in two-dimensional lateral superlattices in strongly coupled electron-hole gasses
B. Kardynal, R.J. Nicholas, J. Rehman, K. Takashina and N.J. Mason
Proc. ICPS 25, Springer Proceedings in Physics 87, I,783 (2001) (Not online)

Metal-insulator oscillations in a two-dimensional electron-hole system
R.J. Nicholas, K. Takashina, M. Lakrimi, B. Kardynal, S. Khym, N.J. Mason, D.M. Symons,
D.K. Maude and J. Portal
PHYSICAL REVIEW LETTERS, 85: (11) 2364-2367 (2000)
URL: http://link.aps.org/abstract/PRL/v85/p2364

A digital quantum Hall effect
R.J. Nicholas, M. Lakrimi, B. Kardynal, S. Khym, N.J. Mason, J. Rehman, K. Takashina,
P.J. Walker, D.M. Symons, D.K. Maude and J. Portal
PHYSICA E, Vol. 6: (1-4) 836-839 (2000)
URL of Journal: http://www.sciencedirect.com/science/journal/13869477
doi:10.1016/S1386-9477(99)00247-7