論文2本が発表されました

  1. Shintaro Nomura • Syuhei Mamyouda, Hironori Ito, Yusuke Shibata, Tomoya Ohira, Luno Yoshikawa, Youiti Ootuka, Satoshi Kashiwaya, Masumi Yamaguchi, Hiroyuki Tamura, Tatsushi Akazaki, “Circularly Polarized Near-field Scanning Optical Microscope for Investigations of Edge States of a Two-dimensional Electron System”, Applied Physics A, Published online: 14 August 2015, DOI 10.1007/s00339-015-9420-9.

  2. S. Mamyouda, H. Ito, Y. Shibata, S. Kashiwaya, M. Yamaguchi, T. Akazaki, H. Tamura, Y. Ootsuka, and S. Nomura, “Circularly Polarized Near-Field Optical Mapping of Spin-Resolved Quantum Hall Chiral Edge States”, Nano Letters 15 (4), pp 2417–2421 (2015).

論文が2本および国際会議3件を発表しました

  1. T. Hayashi, N. Take, H. Tamura, T. Sekitani, and T. Someya, "Alternating current admittance of DNTT-based metal-insulator-semiconductor capacitors", Journal of Applied Physics 115, 093702 (2014).

  2. S. Nomura, M. Yamaguchi, H. Tamura, T. Akazaki, Y. Hirayama, M. Korkusinski, and P. Hawrylak, "Photoluminescence fine structures in the fractional quantum Hall effect regime", Phys. Rev. B 89, 115317 (2014).

  3. Cationic Two-dimensional Surface States at Epitaxial InAs(111)A Surface Characterized Using Low-temperature Scanning Tunneling Microscopy, K. Kanisawa and H. Tamura, 41st Conference on the Physics and Chemistry of Surfaces and Interfaces (PCSI-41), Santa Fe, New Mexico, USA, January 12-16 (2014), We1145.

  4. Mapping of spin-resolved quantum Hall chiral edge channels, S. Nomura, S. Mamyouda, H. Ito, Y. Shibata, Y. Ootuka, S. Kashiwaya, M. Yamaguchi, H. Tamura and T. Akazaki, International Symposium on Nanoscale Transport and Technology (ISNTT2013), NTT Atsugi R&D center, Kanagawa, Japan, November 26-29 (2013), PTu10.

  5. Electronic structure of two-dimensional cation lattice at the InAs(111)A surface, K. Kanisawa and H. Tamura, International Symposium on Nanoscale Transport and Technology (ISNTT2013), NTT Atsugi R&D center, Kanagawa, Japan, November 26-29 (2013), PWe28.

国際会議発表リストアップデート

国際会議リストに以下の研究発表を追加しました。

  1. Admittance study of lateral transport in DNTT-based MIS capacitors, T. Hayashi, N. Take, H. Tamura, K. Muraki, T. Sekitani, and T. Someya, The 9th International Thin-Film Transistor Conference, The University of Tokyo, March 1-2, 2013, 1pLP16.

  2. Imaging of spin-resolved quantum Hall edge states by near-field scanning optical microscopy, H. Ito, S. Mamyouda, Y. Shibata, Y. Ootuka, S. Nomura, S. Kashiwaya, M. Yamaguchi, H. Tamura and T. Akazaki, 20th International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-20), Wroclaw University of Technology,Poland, 1-5 July, 2013, TuOE8.

  3. Phase evolution in the spin-incoherent Luttinger liquid, H. Tamura, T. Kobayashi, T. Akazaki, 20th International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-20), Wroclaw University of Technology,Poland, 1-5 July, 2013,TuP104.

論文が2本出版されました

  1. M. Yamaguchi, S. Nomura, H. Tamura, and T. Akazaki, “Measurement of photoluminescence spectral linewidth of a GaAs quantum well in perpendicular electric fields: Evidence of a crossover from trions to an electron-hole gas”, Phys. Rev. B 87, 081310(R) (2013).

  2. S. Nomura, H. Tamura, M. Yamaguchi, T. Akazaki, Y. Hirayama, “Exchange energy enhanced g-factors obtained from Landau fan diagrams at low magnetic fields”, Phys. Rev. B 87, 085318 (2013).

国際会議および学会発表リストのアップデート

ICPS2012国際会議と2012秋の学会発表のリストを追加しました。

Webページを更新しました。

Webページの更新すると同時に、デザインを一新しました。

過去の更新履歴

2010.07.05
Publications lists are updated.

2006.11.15
My CV and Publications pages are updated.

2005.9.23
New paper has been published:
"Tunable Kondo screening in a quantum dot device",
H. Tamura and L. I. Glazman,
Phys. Rev. B 72, 121308(R) (2005)

2005.9.23
Paper has been published:
"Tunable Kondo screening in a quantum dot device",
H. Tamura and L. I. Glazman,
Phys. Rev. B 72, 121308(R) (2005)

2004.9.27
Paper has been published:
Integer filling factor phases and isospin in vertical diatomic artificial molecules,
D. G. Austing, S. Tarucha, H. Tamura, K. Muraki, F. Ancilotto, M. Barranco, A. Emperador, R. Mayol, and M. Pi,
Phys. Rev. B 70, 045324 (2004)

2004.8.3
Talk was presented at ICPS-27 in Flagstaff, Arizona:
"Tunable Exchange Interaction in Qunatum-Dot-Array Devices"
Hiroyuki Tamura, Kenji Shiraishi, and Hideaki Takayanagi

2004.5.17
Page design has been greatly changed.

2004.5.13
Quantum Dot Team has moved into Spintronics Research Group. Visit Spintronics Group HP to chek out our recent research activities

2004.4.28
Newly published paper: "Tunable Exchange Interaction in Quantum Dot Devices", H. Tamura, K. Shiraishi, and H. Takayanagi,
Jpn. J. Appl. Phys. 43, L691-693 (2004). [PDF
2003.7.15
Talk was presented at EP2DS-15 in Nara: "Tunable Kondo Screening in a Qunatum Dot Device, Hiroyuki Tamura and Leonid Glazman [Abstract]

2003.2.1
Book chapter "Quantum Dot Atoms, Molecules, and Superlattices" has been published in Book "Quantum Dots and Nanowires".
2002.10.21
Paper "Superconductivity in quantum-dot superlattices composed of quantum wire networks" has been published in Physical Review B.

2002.9.2
Page "Introduction to quantum dot superlattices" has been updated.

2002.4.10
Paper "Superconductivity in quantum-dot superlattices composed of quantum wire networks" has been submitted to cond-mat eprint server.

2002.2.11
Paper "Flat-band ferromagnetism in quantum dot superlattices" has been published in Physical Review B.

2002.2.11
Paper "Magnetic field effects on a two-dimensional Kagome lattice of quantum dots" has been published in Physical Review B (Rapid communications).

2001.11.17
PostDoc position is available. For more details, visit here and ask Hideaki Takayanagi directly by e-mail. A candidate who has experiece in optical measurement in semiconductor is especially welcomed .

2001.6.4
Paper "Design of a semiconductor ferromagnet in a quantum-dot artificial crystal" has been published inApplied Physics Letters.

2001.4.15
Easy-to-read page "Introduction to quantum dot superlattices" has been added.

2001.4.4
Preprint "Magnetic field effects on two-dimensional Kagome lattices" has been submitted to the cond-mat e-print server. The preprint is also available here.

2001.4.4
Paper "Semiconductor ferromagnetism in quantum dot array" has been published in Physica Status Solidi(QD2000 proceedings).

2001.4.4
I have become a visiting lecturer of Nagoya university.

2001.1.17
Preprint "Design of a semiconductor ferromagnet in a quantum dot artificial crystal has been submitted to the cond-mat e-print server. The preprint is also available here.

2000.11.15
Invited talk "Artificial crystals designed in semiconductor dot arrays" has been given at the 4th International QFD symposium.

2000.9.25
Oral presentation "Artificial material design of semiconductor dot arrays" has been given at the JPSJ symposium.

2000.9.21
Oral presentation "Flat-band Ferromagnetism in Semiconductor Dot Arrays" has been given at the ICPS25 (Osaka).

2000.8.1
Dr. Takashi Kimura (postdoc) and Yusuke Asari (graduate student) joined our research project.

2000.7.31
Oral presentation "Semiconductor Ferromagnetism in Quantum Dot Array" has been given at the International Conference on Semiconductor Quantum Dots (QD2000, Munich).

2000.6.1
I have become a visiting researcher of the Advanced Research Institute for Science and Engineering, Waseda university.

2000.3.25
I and coworkers gave talks on our recent work "Ferromagnetism in semiconductor dot array" at the March meetings of the APS, JPS, and JAPS.

2000.3.15
Letter paper "Ferromagnetism in semiconductor dot array" was published in "Japan Journal of Applied Physics".

1999.6.3
Check out my tutorial talk on "Hund's rule in quantum dots: Spin effects in artificial atoms and molecules"(Seminar of "Recent progress of physics in finite quantum systems", Yukawa Institute for Theoretical Physics, Kyoto Univ., 1999/5/31-6/2).

1999.2.1
I have released OHPs used in the talk on "Hund's rule in quantum dots: Spin effects in artificial atoms and molecules" (Symposium lecture in Autumn Meeting (BUNKAKAI) of the Physical Society of Japan, Okinawa International University (1998) , and Posters used in the presentation on "Theory of activated conduction in a silicon single-electron transistor" (International Symposium on New Phenomena in Mesoscopic Structures, Hawaii).

1999.1.28
I have moved to Materials Science Research Laboratory. My web site has moved here. In this occasion, I have made considerable chenges in the contents of this web. I'm sorry that some links may be missing.

1998.06.11
I reorganized files into directories on 98.06.09. Please go up to the top page and find the desired file down from there. I appreciate if you change your bookmark to new one.
Tamura's homepage: (Internal access) or (External access)

1997/07/09
Celebrating new BRL Executive Manager, TOHKURA, Yoh'ichi, I have started "About my research" page.

1997/05/09
We have moved our site here.

1996/08/08
My research group has moved from "LSI Laboratories, Si Nanodevice Laboratory" to "Basic Research laboratories, Device Physics Research Laboratory". As a matter of fact, nothing but only its name has changed. (;->)

1996/02/09
"Recent work" page has been released. I will improve this page more, so please check it out!

1996/02/07
I completely changed the page design and the contents to make them look cooler. I thank Akihiko Miyazaki for the request. I have used many new commands of the HTML, such as "table", cgn-bin and so on. I also released the Japanese version of the home page.

1995/05/11
The first home page was started in English.