S
Susumu Okada
Researcher at University of Tsukuba
Publications - 340
Citations - 7898
Susumu Okada is an academic researcher from University of Tsukuba. The author has contributed to research in topics: Carbon nanotube & Graphene. The author has an hindex of 42, co-authored 337 publications receiving 6689 citations. Previous affiliations of Susumu Okada include University of Tasmania & Applied Science Private University.
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Energetics and electronic structures of encapsulated C60 in a carbon nanotube.
TL;DR: Calculated total-energy electronic structure calculations that provide energetics of encapsulation of C60 in the carbon nanotube and electronic structures of the resulting carbon peapods find that the C(60)@(10,10) is a metal with multicarriers each of which distributes either along the nanotubes or on the C60 chain.
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Magnetic ordering in hexagonally bonded sheets with first-row elements.
Susumu Okada,Atsushi Oshiyama +1 more
TL;DR: First-principles total-energy electronic-structure calculations in the density-functional theory performed for hexagonally bonded honeycomb sheets consisting of B, N, and C atoms find that the ground state of BNC sheets with particular stoichiometry is ferromagnetic.
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Polarized absorption spectra of single-walled 4 A carbon nanotubes aligned in channels of an AlPO(4)-5 single crystal.
Zhaoming Li,Zikang Tang,Huijun Liu,Ning Wang,Che Ting Chan,Riichiro Saito,Susumu Okada,Guodong Li,Jun Chen,Nobukata Nagasawa,Syunsuke Tsuda +10 more
TL;DR: The measured absorption spectra agreed well with the ab initio calculations of band structure based on the local density function approximation, and the absorption bands are assigned to the dipole transitions between the Van Hove singularities.
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Flexible metallic nanowires with self-adaptive contacts to semiconducting transition-metal dichalcogenide monolayers
Junhao Lin,Ovidiu Cretu,Wu Zhou,Kazu Suenaga,Dhiraj Prasai,Kirill I. Bolotin,Nguyen Thanh Cuong,Minoru Otani,Susumu Okada,Andrew R. Lupini,Juan Carlos Idrobo,D. Caudel,Arnold Burger,Nirmal Ghimire,Jiaqiang Yan,David Mandrus,Stephen J. Pennycook,Sokrates T. Pantelides +17 more
TL;DR: In this paper, a focused electron beam was used to fabricate one-dimensional conducting nanowires from transition-metal dichalcogenide monolayers, which can be used as interconnects in future flexible nanocircuits.
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One-dimensional van der Waals heterostructures
Rong Xiang,Taiki Inoue,Yongjia Zheng,Akihito Kumamoto,Yang Qian,Yuta Sato,Ming Liu,Devashish Gokhale,Jia Guo,Kaoru Hisama,Satoshi Yotsumoto,Tatsuro Ogamoto,Hayato Arai,Yu Kobayashi,Hao Zhang,Bo Hou,Anton Anisimov,Yasumitsu Miyata,Susumu Okada,Shohei Chiashi,Yan Li,Jing Kong,Esko I. Kauppinen,Yuichi Ikuhara,Kazu Suenaga,Shigeo Maruyama +25 more
TL;DR: In this paper, a 5 nm diameter nanotube consisting of three different materials: an inner conductive carbon nanotubes (CNT), a middle insulating hexagonal boron nitride (BNNT), and an outside semiconducting MoS2 nanotubes is presented.