年別の研究成果
年別の研究成果
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2025
Bloch Sphere Representation and Logic Gate Analysis for a Heavy Hole Confined in Semiconductor Two-Dimensional Quantum Well Systems
Tojo, T. & Takeda, K., 2025, (Accepted/In press) In: Physica Status Solidi (B): Basic Research.研究成果: Article › 査読
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Bloch sphere representation for Rabi oscillation driven by Rashba field in the two-dimensional harmonic confinement system
Arai, K., Tojo, T. & Takeda, K., 2025 1月 1, In: Physica Scripta. 100, 1, 015983.研究成果: Article › 査読
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2024
π quantization in the Berry phase by the multiple degenerate points
Watanabe, F., Hirata, K., Tojo, T. & Takeda, K., 2024 7月, In: MRS Advances. 9, 10, p. 730-736 7 p.研究成果: Article › 査読
Open Access -
2023
Non-Abelian Berry phase for semiconductor heavy holes under the coexistence of Rashba and Dresselhaus spin-orbit interactions
Tojo, T. & Takeda, K., 2023 9月 15, In: Physical Review B. 108, 12, 125432.研究成果: Article › 査読
2 被引用数 (Scopus) -
Spin Textures and Berry Phases for Holes Confined in SiGe Mixed-Alloy 2D Quantum Well System: Quantization of Berry Phase via Intersubband Interaction
Tojo, T. & Takeda, K., 2023 5月, In: Physica Status Solidi (B) Basic Research. 260, 5, 2200319.研究成果: Article › 査読
2 被引用数 (Scopus) -
2021
Spin texture and Berry phase for heavy-mass holes confined in SiGe mixed-alloy two-dimensional system: Intersubband interaction via the coexistence of Rashba and Dresselhaus spin-orbit interactions
Tojo, T. & Takeda, K., 2021 2月 15, In: Physics Letters, Section A: General, Atomic and Solid State Physics. 389, 127091.研究成果: Article › 査読
2 被引用数 (Scopus) -
2020
Spin textures and Larmor precession of holes modulated by the spin-orbit coupling confined in the two-dimensional SixGe1-x mixed-alloy quantum well system
Tojo, T., Tsuruta, K., Takahashi, Y. & Takeda, K., 2020, In: Journal of Physics Condensed Matter. 32, 9, 095302.研究成果: Article › 査読
3 被引用数 (Scopus) -
2019
Rashba spin–orbit interaction for holes confined in quasi-two dimensional silicon quantum well system I: Modification of spin textures
Tojo, T. & Takeda, K., 2019, In: journal of the physical society of japan. 88, 9, 094711.研究成果: Article › 査読
5 被引用数 (Scopus) -
Rashba spin–orbit interaction for holes confined in quasi-two dimensional silicon quantum well system II: Modification of larmor spin precession
Tojo, T. & Takeda, K., 2019, In: journal of the physical society of japan. 88, 12, 124711.研究成果: Article › 査読
2 被引用数 (Scopus) -
2018
Ground-state molecular and electronic structures of group-IV nanoribbons, nanorings and nanotubes
Matsunaga, Y. K. & Takeda, K., 2018, In: Physical Chemistry Chemical Physics. 20, 37, p. 24353-24368 16 p.研究成果: Article › 査読
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Spin-flip quantum transition driven by the time-oscillating Rashba field
Inui, M., Tojo, T., Takeda, K. & Tokura, Y., 2018 1月, In: Journal of Physics Communications. 2, 1, 015021.研究成果: Article › 査読
Open Access2 被引用数 (Scopus) -
2017
Effect of isotropy and anisotropy of the confinement potential on the Rashba spin-orbit interaction for an electron in a two-dimensional quantum dot system
Tojo, T., Inui, M., Ooi, R., Takeda, K. & Tokura, Y., 2017 7月, In: Japanese journal of applied physics. 56, 7, 075201.研究成果: Article › 査読
6 被引用数 (Scopus) -
Electronic structure of worm-eaten graphene
Negishi, H. & Takeda, K., 2017 2月, In: Japanese journal of applied physics. 56, 2, 025101.研究成果: Article › 査読
1 被引用数 (Scopus) -
First-principles study on atomistic and electronic structures of boron-nitrogen and boron-phosphorous nanoribbons, nanorings, and nanotubes
Matsunaga, Y., Sano, K. & Takeda, K., 2017 6月, In: Japanese journal of applied physics. 56, 6, 065001.研究成果: Article › 査読
2 被引用数 (Scopus) -
Theoretical possibility of the chiral recognition of amino acids by a peptide nanoring
Takeuchi, J. & Takeda, K., 2017 10月 15, In: Computational and Theoretical Chemistry. 1118, p. 53-64 12 p.研究成果: Article › 査読
1 被引用数 (Scopus) -
2016
Reconsideration of the spin-orbit interaction for an electron confined in a quasi-two-dimensional quantum dot: II. Bulkiness and in-plane spin-orbit coupling
Yamagami, T., Ido, K., Takeda, K. & Tokura, Y., 2016 4月, In: Japanese journal of applied physics. 55, 4, 045201.研究成果: Article › 査読
3 被引用数 (Scopus) -
Theoretical study on application of peptide nanoring to chiral recognition of amino acid
Takeuchi, J. & Takeda, K., 2016 3月, In: Japanese journal of applied physics. 55, 3, 03DF09.研究成果: Article › 査読
2 被引用数 (Scopus) -
2014
Multistage conformational transition in peptide nanotube induced by temperature and/or external electric field
Clark, R. & Takeda, K., 2014 6月, In: Japanese journal of applied physics. 53, 6, 065201.研究成果: Article › 査読
1 被引用数 (Scopus) -
Optical characterization and computational chemical evaluation of electronic localized states in polyolefin
Arai, T., Hosobuchi, M., Fuse, N., Takeda, K. & Ohki, Y., 2014 7月, In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 188, 1, p. 1-8 8 p.研究成果: Article › 査読
4 被引用数 (Scopus) -
Reconsideration of relativistic corrections for an electron confined in a two-dimensional quantum dot: I. Spin-orbit coupling and Rashba effect
Yokozuka, T., Ido, K., Clark, R., Takeda, K. & Tokura, Y., 2014 3月, In: Japanese journal of applied physics. 53, 3, 031801.研究成果: Article › 査読
6 被引用数 (Scopus) -
2013
Theoretical studies on proton transfer in ammonium nitrate monomer and dimer
Takeuchi, J., Masuda, Y., Clark, R. & Takeda, K., 2013 1月, In: Japanese journal of applied physics. 52, 7 PART 1, 076302.研究成果: Article › 査読
4 被引用数 (Scopus) -
Time-dependent configuration interaction approach for multielectron system confined in two-dimensional quantum dot
Okunishi, T., Clark, R., Takeda, K., Kusakabe, K. & Tomita, N., 2013 2月, In: Japanese journal of applied physics. 52, 2, 022801.研究成果: Article › 査読
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2012
Optical characterization and computational chemical evaluation of electronic localized states in polyolefin
Arai, T., Hosobuchi, M., Fuse, N., Takeda, K. & Ohki, Y., 2012, In: IEEJ Transactions on Fundamentals and Materials. 132, 9, p. 760-766 7 p.研究成果: Article › 査読
4 被引用数 (Scopus) -
Shape of polygonal quantum dots and ground-state instability in the spin polarization
Ishizuki, M., Takemiya, H., Okunishi, T., Takeda, K. & Kusakabe, K., 2012 4月 18, In: Physical Review B - Condensed Matter and Materials Physics. 85, 15, 155316.研究成果: Article › 査読
17 被引用数 (Scopus) -
2011
Ground state instability in spin polarization for electrons confined in two-dimensional square quantum dots
Negishi, Y., Ishizuki, M., Okunishi, T. & Takeda, K., 2011 8月, In: Japanese journal of applied physics. 50, 8 PART 1, 085001.研究成果: Article › 査読
2 被引用数 (Scopus) -
Molecular dynamics approach of ion channeling through peptide nanotubes
Sumiya, N., Igami, D. & Takeda, K., 2011 3月, In: Japanese journal of applied physics. 50, 3, 037002.研究成果: Article › 査読
4 被引用数 (Scopus) -
2010
Electron resonant tunneling through a circle-ring multicomponent quantum system
Sugiyama, K., Okunishi, T., Muraguchi, M. & Takeda, K., 2010 3月 9, In: Physical Review B - Condensed Matter and Materials Physics. 81, 11, 115309.研究成果: Article › 査読
3 被引用数 (Scopus) -
2009
Conformational transitions of cyclic D,L-peptides
Okamoto, H., Yamada, T., Kihara, S., Takechi, K., Takagi, H. & Takeda, K., 2009 4月 30, In: Journal of Computational Chemistry. 30, 6, p. 962-973 12 p.研究成果: Article › 査読
7 被引用数 (Scopus) -
Molecular dynamical approach to the conformational transition in peptide nanorings and nanotubes
Teranishi, M., Okamoto, H., Takeda, K., Nomura, K. I., Nakano, A., Kalia, R. K., Vashishta, P. & Shimojo, F., 2009 2月 5, In: Journal of Physical Chemistry B. 113, 5, p. 1473-1484 12 p.研究成果: Article › 査読
11 被引用数 (Scopus) -
Resonating Hartree-Fock approach for electrons confined in two dimentional square quantum dots
Okunishi, T., Negishi, Y., Muraguchi, M. & Takeda, K., 2009 12月, In: Japanese journal of applied physics. 48, 12, 125002.研究成果: Article › 査読
5 被引用数 (Scopus) -
Theoretical study of the time-dependent phenomenon of photon-assisted tunneling through a charged quantum dot
Muraguchi, M., Shiraishi, K., Okunishi, T. & Takeda, K., 2009, In: Journal of Physics Condensed Matter. 21, 6, 064230.研究成果: Article › 査読
2 被引用数 (Scopus) -
2008
Chelation of transition metal ions by peptide nanoring
Kihara, S., Takagi, H., Takechi, K. & Takeda, K., 2008 6月 26, In: Journal of Physical Chemistry B. 112, 25, p. 7631-7644 14 p.研究成果: Article › 査読
8 被引用数 (Scopus) -
2007
First-principles study of time-dependent phenomena in photon-assisted tunneling: I. An electron injected into two-dimensional lozenge quantum dot
Muraguchi, M. & Takeda, K., 2007 3月 8, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 46, 3 A, p. 1224-1235 12 p.研究成果: Article › 査読
14 被引用数 (Scopus) -
Interstate interference of electron wave packet tunneling through a quantum ring
Okunishi, T., Ohtsuka, Y., Muraguchi, M. & Takeda, K., 2007 6月 8, In: Physical Review B - Condensed Matter and Materials Physics. 75, 24, 245314.研究成果: Article › 査読
22 被引用数 (Scopus) -
Theoretical study on amphi-ionophorability of peptide nanorings
Yamada, T., Takechi, K., Nakanishi, T., Okamoto, H. & Takeda, K., 2007 11月 6, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 46, 11, p. 7586-7595 10 p.研究成果: Article › 査読
5 被引用数 (Scopus) -
2006
Electronic and molecular structures of polyheteroles: II. Aromaticity and quinoidicity
Narita, Y. & Takeda, K., 2006 4月 7, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 45, 4 A, p. 2628-2642 15 p.研究成果: Article › 査読
11 被引用数 (Scopus) -
2005
Difference in self-assembling morphology of peptide nanorings
Okamoto, H., Yamada, T., Miyazaki, H., Nakanishi, T., Takeda, K., Usui, K., Obataya, I., Mhara, H., Azehara, H., Mizutani, W., Hashimoto, K., Yamaguchi, H. & Hirayama, Y., 2005 11月 9, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 44, 11, p. 8240-8248 9 p.研究成果: Article › 査読
5 被引用数 (Scopus) -
IR-study on stacking manner of peptide nanorings in peptide nanotubes
Nagai, Y., Nakanishi, T., Okamoto, H., Takeda, K., Furukawa, Y., Usui, K. & Mihara, H., 2005 10月 11, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 44, 10, p. 7654-7661 8 p.研究成果: Article › 査読
8 被引用数 (Scopus) -
Molecular design and morphology of peptide nanotubes: Towards the novel drug delivery materials
Okamoto, H. & Takeda, K., 2005, In: Journal of Drug Delivery Science and Technology. 15, 1, p. 97-107 11 p.研究成果: Article › 査読
4 被引用数 (Scopus) -
New shell structures and their ground electronic states in spherical quantum dots (II) under magnetic field
Asari, Y., Takeda, K. & Tamura, H., 2005 4月, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 44, 4 A, p. 2041-2050 10 p.研究成果: Article › 査読
1 被引用数 (Scopus) -
Time-dependent ballistic phenomena of electron injected into half-ellipse confined room
Koiso, T., Muraguchi, M., Takeda, K. & Watanabe, N., 2005 6月, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 44, 6 A, p. 4252-4268 17 p.研究成果: Article › 査読
11 被引用数 (Scopus) -
2004
Electronic structures of polyheterole monomers, oligomers, polymers and their block copolymers
Narita, Y., Hagiri, I., Takahashi, N. & Takeda, K., 2004 7月, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 43, 7 A, p. 4248-4258 11 p.研究成果: Article › 査読
26 被引用数 (Scopus) -
Hund's first and second rules in spherical quantum dots (I) in the zero-magnetic field
Asari, Y., Takeda, K. & Tamura, H., 2004 7月, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 43, 7 A, p. 4424-4433 10 p.研究成果: Article › 査読
2 被引用数 (Scopus) -
Theoretical Possibility of the Variety of Ground-State Spin Arrangements Created by the Spin Hole and Spin Cap in π-Conjugated System
Hagiri, I., Takahashi, N. & Takeda, K., 2004 3月 25, In: Journal of Physical Chemistry A. 108, 12, p. 2290-2304 15 p.研究成果: Article › 査読
15 被引用数 (Scopus) -
2003
Polymorphy in the Stereostructure of Periodic Polymer Backbones
Nakanishi, T., Okamoto, H., Kasahara, M. & Takeda, K., 2003 11月 15, In: Journal of Polymer Science, Part B: Polymer Physics. 41, 22, p. 2829-2849 21 p.研究成果: Article › 査読
7 被引用数 (Scopus) -
Theoretical prediction and atomic force microscope observations of the protein nanotube consisting of homo-L-amino acid penta-peptide nanorings
Okamoto, H., Nakanishi, T., Nagai, Y., Takeda, K., Obataya, I., Mihara, H., Azehara, H. & Mizutani, W., 2003 2月, In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 42, 2 A, p. 676-679 4 p.研究成果: Article › 査読
10 被引用数 (Scopus) -
Variety of the molecular conformation in peptide nanorings and nanotubes
Okamoto, H., Nakanishi, T., Nagai, Y., Kasahara, M. & Takeda, K., 2003 3月 5, In: Journal of the American Chemical Society. 125, 9, p. 2756-2769 14 p.研究成果: Article › 査読
51 被引用数 (Scopus) -
2002
Energetics in the growth mechanism of semiconductor heteroepitaxy
Miyagishima, N., Okajima, K., Oyama, N., Shiraishi, K., Takeda, K., Ohno, T. & Ito, T., 2002 4月, In: Journal of Crystal Growth. 237-239, 1 4 II, p. 1599-1602 4 p.研究成果: Article › 査読
1 被引用数 (Scopus) -
First principles and macroscopic theories of semiconductor epitaxial growth
Shiraishi, K., Oyama, N., Okajima, K., Miyagishima, N., Takeda, K., Yamaguchi, H., Ito, T. & Ohno, T., 2002 4月, In: Journal of Crystal Growth. 237-239, 1 4 I, p. 206-211 6 p.研究成果: Article › 査読
16 被引用数 (Scopus) -
Synthesis and atomic force microscopy observations of the single-peptide nanotubes and their micro-order assemblies
Nakanishi, T., Okamoto, H., Nagai, Y., Takeda, K., Obataya, I., Mihara, H., Azehara, H., Suzuki, Y., Mizutani, W., Furukawa, K. & Torimitsu, K., 2002 10月 15, In: Physical Review B - Condensed Matter and Materials Physics. 66, 16, p. 1654171-1654178 8 p., 165417.研究成果: Article › 査読
20 被引用数 (Scopus)