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計算ナノ科学

Research -Mission-

 Our research is a theoretical study on the various phenomena in nature, playing in the nano-scale of space and time, by utilizing the state-of-art in both computation and computer. Based on the knowledge of quantum mechanics, statistical mechanics, or computational science, we clarify nano-scale phenomena in natural science and also construct new methods for the development.

-Interdisciplinarity-

 Nanoscience forms a large continental area at a field where various fields in conventional nature science intersects together. The borders at frontier are expanding with grate force. Our laboratory of Computational Nanoscience is in the scopes of material science, molecule science, surface/interface science, and non-equilibrium science.

Topics

Our 2 papers are accepted for publication as achievements of study.

Hirofumi Sakakibara, Takao Kotani, Masao Obata, and Tatsuki Oda, “Finite electric-field approach to evaluate the vertex correction for the screened Coulomb interaction in the quasiparticle self-consistent GW method”, Physical Review B, 101, 205120 (2020), published 15 May 2020. DOI: https://doi.org/10.1103/PhysRevB.101.205120

Indra Pardede, Daiki Yoshikawa, Tomosato Kanagawa, Nurul Ikhsan, Masao Obata, and Tatsuki Oda, “Anatomy of magnetic anisotropy and voltage-controlled magnetic anisotropy in metal oxide heterostructure from first principles”, Special Issue "Magnetism in Low Dimensional Structures" of Crystals (MDPI) (peer-reviewed open access journal), accepted on December 2, 2020, published on December 8 (online only). Crystals 2020, 10, 1118.
DOI: https://doi.org/10.3390/cryst10121118
Abstract: https://www.mdpi.com/2073-4352/10/12/1118
HTML Version: https://www.mdpi.com/2073-4352/10/12/1118/htm
PDF Version: https://www.mdpi.com/2073-4352/10/12/1118/pdf


Our paper is accepted for publication as achievements of study.

Hasan Al Rasyid, Masao Obata, Indra Pardede, Marleni Wirmas, Takao Kotani, and Tatsuki Oda, “Electronic structure investigation of spinel NiCo2O4 from quasi-particle self-consistent GW method”, The Science Reports of Kanazawa University (accepted August 12, 2020), 2020, published 15 May 2020.
DOI: http://scirep.w3.kanazawa-u.ac.jp/


Our 2 papers are accepted for publication as achievements of study.

Indra Pardede, Daiki Yoshikawa, Tomosato Kanagawa, Nurul Ikhsan, Itsuki Murata, Masao Obata, Tatsuki Oda, Anatomy of large perpendicular magnetic anisotropy in free-standing Co/Ni(111) multilayer, J. Magn. Magn. Mater., 500, 166357 (2020), DOI: https://doi.org/10.1016/j.jmmm.2019.166357

Afrioni Roma Rio, Indra Pardede, Achmad Maulana Gani, Mega Christivana, Masao Obata, and Tatsuki Oda, Density functional approach under external magnetic field, J. Phys. Soc. Jpn., accepted for publication on 23th January 2020, DOI: https://doi.org/10.7566/JPSJ.89.035002


Achievement by Dr. Masao Obata (Assistant Professor), “Non-volatile control of magnetic anisotropy through change of electric polarization” are displayed at the Web site of Kanazawa University “Paper of the Month (2019.11)”. Please enjoy the following URL site.
◆Papers of the Month(Japanese):http://o-fsi.w3.kanazawa-u.ac.jp/showcase/papers/
◆Papers of the Month(English):http://o-fsi.w3.kanazawa-u.ac.jp/en/showcase/papers/
◆EurekAlert:https://eurekalert.org/pub_releases/2019-11/ku-nco111019.php

 Our 2 papers are accepted for publication as achievements of study.

Mega Christivana, Masao Obata, and Tatsuki Oda, Noncollinear magnetic structure with spin- dependent van der Waals density functional approach: beta-phase solid oxygen, J. Phys. Soc. Jpn., 88, 104601 (2019), DOI: https://journals.jps.jp/doi/10.7566/JPSJ.88.104601

Muftah Al-Mahdawi, Mohamed Belmoubarik, Masao Obata, Daiki Yoshikawa, Hideyuki Sato, Tomohiro Nozaki, Tatsuki Oda, and Masashi Sahashi, Large nonvolatile control of magnetic anisotropy in CoPt/ZnO magnetic tunnel junctions, Phys. Rev. B, 100, 054423 (2019), DOI: https://link.aps.org/doi/10.1103/PhysRevB.100.054423

 Our 4 papers are accepted for publication as achievements of study.

Tomáš Koubský, P. Sedlák, H. Seiner, Jaroslava Fojtikova, Masao Obata, Tatsuki Oda, and Ladislav Kalvoda, Ab Initio study of martensitic transition in Ni2MnGa, ACTA PHYSICA POLONICA A 134(3) (2018) 804-806. DOI: http://dx.doi.org//10.12693/APhysPolA.134.804

 Nurul Ikhsan, Tomosato Kanagawa, Indra Paraded, Daiki Yoshikawa, and Tatsuki Oda, Perpendicular and in-plane magnetic anisotropies in Cr-buffered Fe(x)/MgO interface from first-principles approach, accepted for publication to The Science Reports of Kanazawa University, Accepted on 23 August 2018,2018

 Nurul Ikhsan, Indra Paraded, Tomosato Kanagawa, Daiki Yoshikawa, Masao Obata, and Tatsuki Oda, Fermi level smearing effect in the perpendicular interfac Fe/MgO magnetic anisotropy, accepted for publication to The Science Reports of Kanazawa University, Accepted on 28 August 2018,2018

 Tatsuki Oda, Indra Paraded, Tomosato Kanagawa, Nurul Ikhsan, Daiki Yoshikawa, and Masao Obata, Shape Magnetic Anisotropy from Spin Density in Nanoscale Slab Systems, IEEE Transactions on Magnetics, Accepted on 29 August 2018, DOI: https://doi.org/10.1109/TMAG.2018.2868843




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