## Basic Information

### Academic Degrees

- Doctor of Engineering, Tokyo Institute of Technology
- Master of Engineering, Tokyo Institute of Technology

### Research Fields

- Mathematical and physical sciences;Physics;Mathematical physics / Fundamental condensed matter physics

### Research Keywords

- Solid state physics
- band theory
- Density-functional theory

### Affiliated Academic Societies

- The Physical Society of Japan

## Educational Activity

### Course in Charge

- 2021, Undergraduate Education, First Semester, Quantum Mechanics ＩＩ
- 2021, Undergraduate Education, Second Semester, Mathematics for Physics B
- 2021, Undergraduate Education, First Semester, Special Study for Graduation A
- 2021, Undergraduate Education, Second Semester, Special Study for Graduation B
- 2021, Graduate Education (Master's Program) , 1Term, Solid State Physics
- 2021, Graduate Education (Master's Program) , 4Term, Exercises in Basic Sciences of Matter B
- 2021, Graduate Education (Master's Program) , First Semester, Seminar on Basic Sciences of Matter A
- 2021, Graduate Education (Master's Program) , Second Semester, Seminar on Basic Sciences of Matter B
- 2021, Graduate Education (Master's Program) , Academic Year, Academic Presentation in Basic Sciences of Matter
- 2021, Graduate Education (Master's Program) , 1Term, Exercises in Basic Sciences of Matter A
- 2021, Graduate Education (Master's Program) , 2Term, Exercises in Basic Sciences of Matter A
- 2021, Graduate Education (Master's Program) , 3Term, Exercises in Basic Sciences of Matter B
- 2021, Graduate Education (Master's Program) , 1Term, Solid State Physics
- 2021, Graduate Education (Master's Program) , Academic Year, Advanced Study in Quantum Matter
- 2021, Graduate Education (Doctoral Program) , Academic Year, Advanced Study in Quantum Matter

## Research Activities

### Academic Papers

- High-Efficiency Delta-Doped Amorphous Silicon Solar Cells Prepared by Photochemical Vapor Deposition, Jpn. J. Appl. Phys. Series, 30(8), 1635-1640, 19910801
- First high performance InAlAs/InGaAs HEMTs on GaAs exceeding that on InP, Proc. of 1994 IEEE IEDM, 891-894, 1994
- High Gm InAlAs/InGaAs HEMTs grown lattice-mismatched on GaAs substrates, Journal of Crystal Growth, 150(4), 1230-1235, 19950401
- High Gm MBE-grown InP based HEMTs with a very low contact resistance triple capping layer, Proc. of 7th International Conference on Indium Phosphide and Related Materials, 741-744, 1995
- Low contact resistance Triple capping layer enabling high GmInAlAs/InGaAs HEMTs, Journal of Electronic Materials, 25(4), 643-647, 19960401
- High Performance InAlAs/InGaAs HEMTs on GaAs, Jpn. J. Appl. Phys. Series, 35(11), 5642-5645, 19961101
- Fabrication of an InAlAs/InGaAs HEMT using ArF Excimer Laser Assisted Damage-Free Highly-Selective InGaAs/InAlAs Etching Technology, Jpn. J. Appl. Phys., 35(12B), 6544-6548, 19961201
- A Monte Carlo analysis of new nanoscale ballistic field effect transistors (BFETs) for millimetre-wave applications, Proceedings of Electron Devices for Microwave and Optoelectronic Applications96, 8-13, 1996
- InAlAs/InGaAs HEMTs with uniform threshold voltage fabricated by selective wet-etching using adipic acid, Jpn. J. Appl. Phys., 36(3B), 1822-1825, 19970301
- Structural and optical characterization of single three-dimensionally confined GaAs/AlAs structures grown on patterned GaAs (011) substrates, J. Vac. Sci. & Technol., B15(4), 862-869, 19970401
- Selective Wet Etching of InGaAs to InAlAsUsing Adipic Acid, Semiconductor Science and technology, 12(6), 475-480, 19971201
- High-performance HEMT with an Offset-Gate Structure for Millimeter-Wave MMICs, Jpn. J. Appl. Phys., 37(3B), 1373-1376, 19980301
- High breakdown voltage and high fmax InAlAs/InGaAs HEMTs on GaAs, Proc. of 1998 International Conference on Indium Phosphide and Related Materials, 501-504, 1998
- High breakdown voltage of InAlAs/InGaAs HEMTs with wide-recess structure, Japanese Journal of Applied Physics, 38(2B), 267-270, 19990201
- Optimum design and fabrication of InAlAs/InGaAs HEMTs on GaAs with both high breakdown voltage and high maximum frequency of oscillation, IEEE Transactions on Electron Devices, 46(7), 1312-1318, 19990701
- Annelaing effects on lattice-strain-relaxed In0.5Al0.5As/In0.5Ga0.5As heterostructures grown on GaAs substrates, Journal of Crystal Growth, 201(8), 271-275, 19990401
- Sharp luminescent lines from single three-dimensionally confined GaAs/AlAs structures grown on a patterned GaAs substrate, Physical Review B, 60(19), 13727-13734, 19990401
- Relativistic band theory under an electromognetic field: A relativistic current and spin density functional theory for the infinite system, 5th International Workshop on Similarity in Diversity, 171-180, 20000101
- Magnetic Bloch Function in Current Density Functional Theory, Physica B, 284, 1193-1194, 20000401
- InAs/AlInAsSb inverse modulation-doped heterostructures grown by molecular beam epitaxy, Proc. of the 10th International Conference on Narrow Gap Semiconductors and Related Small Energy Phenomena, Physics and Applications, 36-38, 20010801
- Sum rules and bounds on the exchange and correlation energy functional of the current-density functional theory, Physical Review B, 65, 195122, 20020401
- Exchange and correlation energy functional in the current-density functional theory, Physica B, 534, 20020401
- Sum Rules for Exchange and Correlation Energy Functional in the Current-Density Functional Theory, Journal of the Korean Physical Society, 40, 1060, 20020401
- Dominant noise source of low-frequency fluctuation in AlGaAs/InGaAs high electron mobility transistors, Japanese Journal of Applied Physics, 42, 2296, 20030401
- Scheme for the energy-band calculation under the external magnetic field, Physica B, 329-333, 127, 20030801
- Low-Frequency Noise Caused by Substrate Current in AlGaAs/InGaAs HEMTs, Japanese Journal of Applied Physics, 43(4B), 1937-1940, 20040401
- Arbitrary Choice of Basic Variables in Density Functional Theory. I. Formalism, Physical Review B, 69, 035113, 20040401
- Density functional theory with arbitrary basic variables, Journal of Magnetism and Magnetic Materials, 272-276, 659, 20041101
- Arbitrary Choice of Basic Variables in density-functional. II. Illustrative Applications, Physical Review B, 69, 165118, 20040801
- Virial and scaling relations for the exchange-correlation energy functional in the extended constrained-search theory, Chimia, 59, 419, 20051101
- Extended constrained-search theory: arbitrary choice of basic variables in 0density functional theory, Chimia, 59, 413, 20051101
- Exchange-correlation energy functional and virial theorem in the extended 0constrained-search theory, Physical Review B, 71, 035116, 20050801
- Mobility and number fluctuations in MOS structures, Jpn. J. Appl. Phys., 44, 2198, 20051201
- Low-frequency noise generated from high-field region in AlGaAs/InGaAs HEMTs, Jpn. J. Appl. Phys., 44, 2496, 20050401
- Vorticity expansion approximation of the exchange and correlation energy functionals in current-density functional theory, Physical Review B, 74, 195122, 20061201
- Simultaneous equations for calculating the ground-state pair density, Journal of Physics, 19, 365219, 20071001
- OEP Atomic-structure calculations with Moller-Plesset correlation and orbital polarization, Journal of Magnetism and Magnetic Materials, 310, 1623, 20070801
- Density functional scheme for calculating the ground-state pair density, Journal of Magnetism and Magnetic Materials, 310, 990, 20070801
- New Practicable Forms for Exchange and Correlation Energy Functionals of the CDFT, Journal of Magnetism and Magnetic Materials, 310, 1065, 20070801
- A Proposal for Calculating the Orbital-Dependent Exchange-Correlation Potential by Means of the Virial Theorem, Journal of Physical Society of japan, 76, 054302, 20070701
- Comparison between the vorticity expansion approximation and the local density approximation of the CDFT from the viewpoint of sum rules, Journal of Physics: Condensed Matter, 19, 365216, 20071201
- A proposal of the approximate scheme for calculating the pair density, Physica B: Condensed Matter, 387, 117, 20070101
- Pair density-functional theory by means of the correlated wave function, PHYSICAL REVIEW A, 75(4), 042510, 200704
- Consideration of the Effect of the Nonspherical Distribution of Electrons in Atomic Structures, Materials Transactions, 49, 1893, 20080401
- Scheme for calculating the orbital-dependent exchange-correlation potential using the virial theorem: Application to atomic systems, Physical Review A, 78, 012501, 20080601
- Pair density functional theory utilizing the noninteracting reference system: An effective initial theory, Physical Review B, 78, 125101, 20080701
- Evaluation of the kinetic energy contribution to the exchange-correlation energy functional in the extended constrained-search theory: Application to the current density functional theory, J. Phys.: Conference Series, 150, 042057, 20090701
- A pair density functional theory utilizing the correlated wave function, J. Phys.: Conference Series, 150, 042056, 20090701
- Kinetic energy contribution to the exchange-correlation energy functional of the extended-constrained search theory, Physical Review A, 79, 022113, 20090601
- Computational scheme for the ground-state pair density, Journal of Physics: Condensed Matter, 21, 064206, 20090401
- Sum rules for the exchange-correlation energy functional of the extended constrained-search theory: Application to checking the validity of the vorticity expansion approximation of the current-density functional theory, Phys. Rev. A., 81, 042505/1-8, 20100401
- Computational pair density functional theory: a proposal of the kinetic energy functional, Phys. Rev. B., 82, 155135/1-12, 20101001
- Checking the Validity of the Vorticity Expansion Approximation of the Current-Density Functional Theory, INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 110(12), 2286-2289, 201010
- A Restrictive Condition on Approximate Forms of the Kinetic Energy Functional of the Pair Density Functional Theory, INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 110(12), 2283-2285, 201010
- A Scheme for Calculating Atomic Structures beyond the Spherical Approximation, J. Modern Phys., 2, 421-430, 20110501
- Correction Method for obtaining the variationally best ground-state pair density, Phys. Rev. A, 84, 044502(1-4), 20111001
- Density Functional Approach for Calculating the Diagonal Elements of the Second-Order Reduced Density atrix: Restrictive Conditions on the Kinetic Energy Functional, J. Phys. Soc. Jpn., 80, SA122(1-3), 20110401
- Exchange-Correlation Potentials of the CDFT in the Vorticity Expansion Approximation, J. Phys. Soc. Jpn., 80, SA123(1-3), 20110401
- Self-consistent calculations of the atomic electron affinity and ionization energy with taking effects of the rical distribution of electrons into account, J. Mod. Phys., 2, 1161-1165, 20111001
- Coupling-constant expression and exact relations for the kinetic-energy functional in pair-density-functional theory, PHYSICAL REVIEW A, 85(6), 20120611
- An alternative scheme for calculating the unrestricted Hartree-Fock equation: Application to the boron and neon atoms, PHYSICA B-CONDENSED MATTER, 407(14), 2758-2762, 20120715
- Extension of the search region of pair densities by means of the scaling of the electron coordinates, Journal of Physics: Conference Series, 400, 032019, 20120601
- Pair density functional theory, COMPUTATIONAL AND THEORETICAL CHEMISTRY, 1003, 91-96, 20130101
- Current-density functional theory for a superconductor, INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 113(5), 709-714, 20130305
- Scaling method of the pair density functional theory in combination with energy functionals satisfying the virial theorem: Checking the validity via atomic structure calculations, Physical Review A, 87, 032511, 20130501
- Checking the validity of the correlated Thomas-Fermi functional in the pair density functional theory, J. Phys.: Conference Series, 454, 012056, 20130601
- Pair Density Functional Theory, Computational and Theoretical Chemistry, 1003, 91, 2013
- Approximate forms of the pair-density-functional kinetic energy on the basis of a rigorous expression with coupling-constant integration, PHYSICAL REVIEW A, 90(6), 20141215
- A Proposal of the Approximate Kinetic Energy Functional of the Pair Density Functional Theory, JPS Conf. Proc., 3, 17009, 20140616
- Relativistic tight-binding approximation method for materials immersed in a uniform magnetic field: Application to crystalline silicon, PHYSICAL REVIEW B, 91(7), 20150223
- Calculation of magnetic oscillations via the magnetic-field-containing relativistic tight-binding approximation method: Revisiting the de Haas-van Alphen effect, PHYSICAL REVIEW B, 91(24), 20150601
- Recent Development of the Pair Density Functional Theory, Quantum Matter, 4, 63-68, 2015
- Calculation of magnetic properties of metals by means of the magnetic-field-containing relativistic tight-binding approximation method, PHYSICAL REVIEW B, 95(19), 20170525
- Basic Variables to Be Reproduced in the First-Principles Theory for Superconductors: Fluctuation of the Particle Number, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(6), 20170615
- N-representability of the Jastrow wave function pair density of the lowest-order, SCIENTIFIC REPORTS, 7, 20170808
- Current-Density Functional Theory for the Superconductor and Its Exchange-Correlation Energy Functional, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(10), 20171015
- Magnetic breakdown investigated by means of the magnetic-field-containing relativistic tight-binding approximation method, PHYSICAL REVIEW B, 96(23), 20171215
- Nonperturbative description of the butterfly diagram of energy spectra for materials immersed in a magnetic field, PHYSICAL REVIEW B, 97(19), 20180517
- Renormalized Moller-Plesset Correlation Energy Functional Used in the Optimized Effective Potential Method, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 87(1), 20180115
- Reduced Effective g-Factor in Graphene, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88(9), 20190915
- ★, Time-dependent current-density-functional theory taking into consideration the effect of energy dissipation, PHYSICAL REVIEW A, 100, 062503/1-062503/14, 20191203
- A Calculation Scheme for the Pair-Density Functional Theory for the Superconductor, JPS Conf., 30, 011066, 2020
- Magnetic-field and temperature dependence of the superconducting gap through current-density functional theory for superconductors, PHYSICAL REVIEW B, 102(1), 20200727

### Publications such as books

- 2011/11, 密度汎関数法の発展-マテリアルデザインへの応用-, 2011, 11, Scholarly Book, Joint work

### Patented

- Patent, US:7902919, 2011/03/08
- Patent, JP5283119, 2013/06/07
- Patent, EP:2048714, 2013/07/24
- Patent, KR:10-1381785, 2014/03/31
- Patent