Sugino, Osamu
Associate Professor
solid state physics
University of Tokyo
Japan
Biography
Development of first-principles condensed matter theory is the target of study. This is done by advancing computational methods and by performing large-scale simulations. The methodologies under development are (1) the many-body Greens’s function approach to the excited states of materials, via the solution of the Bethe-Salpeter equation within the GW approximation, (2) accurate wave function theory based on the antisymmetrized germinal power and the Pfaffian, in place of the conventional Slater determinant, and (3) density functional approach to the non-equilibrium and steady state of the electrochemical interface. Collaboration with experimental research groups is also an important theme. The theme includes (1) structural phase transition of a material under strong magnetic field, (2) thermodynamic stability of bioluminescent material, and (3) Dirac cone of novel thin films grown on surfaces, (4) design of electrocatalyst for the next-generation fuel cell.
Research Interest
First-principles calculation of excited states based on GW + Bethe-Salpeter equation Accurate wave function theory based on antisymmetrized germinal power First-principles calculation of electrochemical interface
Publications
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†*Dirac Fermions in Borophene: B. Feng, O. Sugino, R.-Y. Liu, J. Zhang, R. Yukawa, M. Kawamura, T. Iimori, H. Kim, Y. Hasegawa, H. Li, L. Chen, K. Wu, H. Kumigashira, F. Komori, T.-C. Chiang, S. Meng and I. Matsuda, Phys. Rev. Lett. 118 (2017) 096401 (1-6).
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First-principles description of van der Waals bonded spin-polarized systems using the vdW-DF+ method: Application to solid oxygen at low pressure: S. Kasamatsu, T. Kato and O. Sugino, Phys. Rev. B 95 (2017) 235120.
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†Erratum: Improved modeling of electrified interfaces using the effective screening medium method [Phys. Rev. B 88 , 155427 (2013)]: I. Hamada, O. Sugino, N. Bonnet and M. Otani, Phys. Rev. B 95 (2017) 119901.
