Publications

Spintronics Team

1. Electron g-factor in gated InGaAs channel with double InAs-inserted wells
   Y. Lin, J. Nitta, T. Koga, and T. Akazaki
   Physica E 21 656 (2004)
2. Magnetization reversal process of Submicrometer-Scale Hall Bars of　Ferromagnetic Semiconductor p-InMnAs
   Y. Sekine, J. Nitta, T. Koga, A. Oiwa, S. Yanagi, T. Slupinski, and H. Munekata
   Jpn. J. Appl. Phys. 43, 2097 (2004).
3. Control of magnetization state in microstructured permalloy rings
   M. Steiner, and J. Nitta
   Appl. Phys. Lett. 84 939 (2004)
4. On the significance of fine structure in the frequency spectrum of Aharonov-Bohm conductance oscillations
   F. E. Meijer, A. F. Morpurgo, T. M. Klapwijk, T. Koga　and J. Nitta
   Phys. Rev. B 69 035308 (2004)
5. Gate controlled electron g-factor in InAs-inserted-channel InGaAs/InAlAs heterostructure
   J. Nitta, Y. Lin, T. Akazaki, and T. Koga
   Appl. Phys. Lett. 83 4565 (2003)
6. Nonmagnetic control of spin transport in InGaAs quantum wells
   T. Koga, J. Nitta, and S. Datta
   Physica E 18, 161 (2003)
7. Effect of spin-orbit interaction in an InGaAs-based Aharonov-Bohm ring structure
   J. Nitta, T. Koga, and F. Meijer
   Physica E 18, 143 (2003)
8. Structural Control of Rashba Spin-orbit Coupling in InAlAs/InGaAs/InAlAs Quantum Wells
   T. Koga, J. Nitta, and S. Marcet
   J. of Superconductivity: Incorporating Novel Magnetism 16 331 (2003)
9. Rashba spin-orbit coupling probed by the weak antilocalization analysis in InAlAs/InGaAs/InAlAs quantum wells as a function of quantum well asymmetry
   T. Koga, J. Nitta, T. Akazaki, and H. Takayanagi,
   Phys. Rev. Lett. 89, 046801 (2002).
10. Spin-filter device based on the Rashba effect uing a non-magnetic triple barrier resonant tunneling diode
    T. Koga, J. Nitta, H. Takayanagi, and S. Datta,
    Phys. Rev. Lett. 88, 126601 (2002).
11. Investigation of Ferromagnetic Microstructures by Local Hall Effect and Magnetic Force Microscopy
    J. Nitta, T. Schaepers, H. B. Heersche, T. Koga, Y. Sato and H. Takayanagi
    Jpn. J. Appl. Phys. 41, 2497 (2002).
12. Conditions for the Spin Rectification Phenomena predicted for Semiconducting Triple Barrier Structures in the presence of Rashba Spin-Orbit Coupling
    T. Koga, J. Nitta, T. Akazaki, and H. Takayanagi,
    Jpn. J. Appl. Phys. 41, 2501 (2002).
13. Spin Injection across Hybrid Heterojunction: Theoretical Understanding and Experimental Approaches
    Can-Ming Hu, J. Nitta, A. Jensen, J. B. Hansen, and H. Takayanagi, D. Heitmann, and U. Merkt,
    J. Appl. Phys. 91 7251 (2002).
14. Enhancement of spin-injection from ferromagnetic metal into 2-dimensional electron gas using tunnel barrier
    H. B. Heersche, Th. Schaepers, J. Nitta, and H. Takayanagi
    Phys. Rev. B64, 161307(R) (2001).
15. Inteference ferromagnet/semiconductor/ferromagnet spin field effect transistor
    Th. Schaepers, J. Nitta, H. B. Heersche, and H. Takayanagi,
    Phys. Rev. B64, 125314 (2001).
16. Spin Polarised Transport in a Two Dimensional Electron Gas with Inter-Digital-Ferromagnetic Contact
    Can-Ming Hu, J. Nitta, A. Jensen, J.B. Hansen, and H. Takayanagi,
    Phys. Rev. B63, 125333 (2001).

Quantum Dot Team

1. Tunable Exchange Interaction in Quantum Dot Devices
   H. Tamura, K. Shiraishi, and H. Takayanagi
   Jpn. J. Appl. Phys. 43, L691-693 (2004). [PDF]
2. Conductance oscillations of a quantum wire with a side-coupled quantum dot
   M. Yamaguchi, A. Richter, H. Tamura, T. Akazaki, and H. Takayanagi
   Proceedings of XXXIXth Rencontres de Moriond, Italy
3. Transport properties of a lateral semiconductor quantum dot defined by a single connected metallic front-gate
   A. Richter, K. Matsuda, T. Akazaki, T. Saku, H. Tamura, Y. Hirayama, and H. Takayanagi
   submitted to Physica E
4. Single-electron charging effects in a semiconductor quantum wire with side-coupled quantum dot
   A. Richter, M. Yamaguchi, T. Akazaki, H. Tamura, and H. Takayanagi
   submitted to Jpn J. Appl. Phys.
5. Quantum Dot Atoms, Molecules, and Superlattices
   H.Tamura, K.Shiraishi, and H.Takayanagi
   Book chapter of "Quantum Dots and Nanowires", edited by S.Bandyopadhyay and H.S.Nalwa (American Scientific Publisher, USA, 2003) [PDF]
6. Superconductivity in quantum-dot superlattices composed of quantum wire networks
   T.Kimura, H.Tamura, K.Kuroki, K.Shiraishi, H.Takayanagi, and R.Arita
   Physical Review B 66, 132508 (2002)
7. Flat-band ferromagnetism in quantum dot superlattices
   H.Tamura, K.Shiraishi, T.Kimura, and H.Takayanagi
   Physical Review B 65, 085324 (2002)
8. Design of a semiconductor ferromagnet in a quantum dot artificial crystal
   K. Shiraishi, H.Tamura, and H.Takayanagi
   Applied Physics Letters, 78, 3702 (2001)