Pauli-Spin-Blockade Transport through a Silicon Double Quantum Dot (2007)
Liu, H. W., Fujisawa, T., Ono, Y., Inokawa, H., Fujiwara, A., Takashina, K., ...
We present measurements of resonant tunneling through discrete energy levels of a silicon double quantum dot formed in a thin silicon-on-insulator layer. In the absence of piezoelectric phonon...
Anomalous Resistance Ridges Along Filling Factor $\nu = 4i$ (2006)
Takashina, K., Brun, M., Ota, T., Maude, D. K., Fujiwara, A., Ono, Y., ...
We report anomalous structure in the magnetoresistance of SiO$_2$/Si(100)/SiO$_2$ quantum wells. When Landau levels of opposite valleys are driven through coincidence at the Fermi level, the...
Valley Polarization in Si(100) at Zero Magnetic Field (2006)
Takashina, K., Ono, Y., Fujiwara, A., Takahashi, Y., Hirayama, Y.
The valley splitting, which lifts the degeneracy of the lowest two valley states in a SiO$_2$/(100)Si/SiO$_2$ quantum well is examined through transport measurements. We demonstrate that the valley...
Current-driven breakdown of the quantized Hall states of a broken-gap 2D electron-hole system (2006)
Takashina, K., Nicholas, R. J., Kardynal, B., Mason, N. J., Maude, D. K., Portal, J. C.
We report results from experimental studies on the current driven breakdown of the quantum Hall effect in an InAs/GaSb-based electron-hole system. We find that the critical currents observed in this...
Insulating states of a broken-gap two-dimensional electron-hole system (2003)
Takashina, K., Nicholas, R. J., Kardynal, B., Mason, N. J., Maude, D. K., Portal, J. C.
Quantum Hall and insulating states of a 2-D electron-hole system (2003)
Takashina, K., Nicholas, R. J., Mason, N. J., Maude, D. K., Portal, J. C.
Breakdown of the QHE in an electron-hole system (2003)
Takashina, K., Nicholas, R. J., Kardynal, B., Mason, N. J., Maude, D. K., Portal, J. C.
Metallic and insulating states of a broken-gap 2-D electron-hole system (2003)
Takashina, K., Nicholas, R. J., Kardynal, B., Mason, N. J., Maude, D. K., Portal, J. C.
Observation of magnetophotoluminescence from a GaN/AlxGa1-xN heterojunction (2002)
Shields, P A, Nicholas, R J, Takashina, K, Grandjean, N, Massies, J
Observation of magnetophotoluminescence from a GaN/AlxGa1-xN heterojunction (2002)
Shields, P A, Nicholas, R J, Takashina, K, Grandjean, N, Massies, J
Petchsingh, C., Nicholas, R. J., Takashina, K., Mason, N. J., Zeman, J.
We report a study of cyclotron resonance (CR) in a bilayer- bipolar InAs/GaSb structure and the influence of the spatial separation between the electrons and holes. At low magnetic fields we find...
Breakdown of the quantum Hall effect in an electron-hole system (2001)
Takashina, K., Nicholas, R. J., Kardynal, B., Mason, N. J., Maude, D. K., Portal, J. C.
Edge effects in an insulating state of an electron-hole system in magnetic field (2001)
Takashina, K., Nicholas, R. J., Kardynal, B., Mason, N. J., Maude, D. K., Portal, J. C.
Insulating states of a 2-dimensional electron-hole system in high magnetic field (2001)
Takashina, K., Nicholas, R. J., Kardynal, B., Mason, N. J., Maude, D. K., Portal, J. C.
A digital quantum Hall effect (2000)
Nicholas, R. J., Lakrimi, M., Kardynal, B., Khym, S., Mason, N. J., Rehman, J., ...
Metal-insulator oscillations in a two-dimensional electron-hole system (2000)
Nicholas, R. J., Takashina, K., Lakrimi, M., Kardynal, B., Khym, S., Mason, N. J., ...
Metal-Insulator oscillations in a Two-dimensional Electron-Hole system (1999)
Nicholas, R. J., Takashina, K., Lakrimi, M., Kardynal, B., Khym, S., Mason, N. J., ...
The electrical transport properties of a bipolar InAs/GaSb system have been studied in magnetic field. The resistivity oscillates between insulating and metallic behaviour while the quantum Hall...