267 citations · 363 across the 12 of their papers we have counts for
12 papers
Strong phase coherence and vortex matter in a fractal system with proximity-induced superconductivity
Nanami Teramachi, Aoi Hashimoto, Iku Nakaaki +10
The proximity effect in normal/superconductor heterostructures is an intriguing phenomenon in that the normal side takes on the properties of a superconductor with an induced gap.…
Spontaneous vortex state in a superconductor/ferromagnet nanocomposite
Nanami Teramachi, Yusuke Seto, Takahiro Sakurai +2
The mechanism of the interplay between superconductivity and magnetism is one of the intriguing and challenging problems in physics. Theory has predicted that the ferromagnetic ord…
Macroscale three-dimensional proximity effect in disordered normal/superconductor nanocomposites
Katsuya Ueno, Nobuhito Kokubo, Satoru Okayasu +8
Recently, interest in Superconductor (S)-Normal (N) interfaces was renewed by the observation of exotic proximity effects in various systems, including S/semiconductor, S/ferromagn…
Experimental realization of purely excitonic lasing in ZnO microcrystals at room temperature: transition from exciton-exciton to exciton-electron scattering
Ryosuke Matsuzaki, Haruka Soma, Kanae Fukuoka +1
Since the seminal observation of room-temperature laser emission from ZnO thin films and nanowires, numerous attempts have been carried out for detailed understanding of the lasing…
Enhancement of the superconducting transition temperature of MgB2 by proximity effect of d0 ferromagnet
Takashi Uchino, Kazuyuki Takahashi, Yuki Uenaka +9
Heterostructures of superconducting and ferromagnetic materials are of fundamental interest because of the mutual interaction of antagonistic kinds of ordering at the S-F interface…
Hole-doping driven antiparallel magnetic order underlying the superconducting and pseudogap states in high-temperature cuprate superconductor
Takashi Uchino
Unveiling the nature of the pseudogap and its relation to both superconductivity and antiferromagnetic Mott insulators, the pairing mechanism, and a non-Fermi liquid phase is a key…
Towards a complete understanding of pseudogap and pairing mechanisms in high-temperature superconducting cuprates
Takashi Uchino
Unveiling the nature of the pseudogap and its relation to both superconductivity and antiferromagnetic Mott insulators, the pairing mechanism, and a non-Fermi liquid phase is a key…
Spin-Polarized Ground States and Ferromagnetic Order Induced by Low-Coordinated Surface Atoms and Defects in Nanoscale Magnesium Oxide
Takashi Uchino, Toshinobu Yoko
We investigate the effect of low-coordinated surface atoms on the defect-induced magnetism in MgO nanocrystallites using hybrid density functional theory calculations. It has been…
Symmetry and Nonstoichiometry as Possible Origin of Ferromagnetism in Nanoscale oxides
Takashi Uchino, Toshinobu Yoko
We show through density functional theory calculations that extended magnetic states can inherently occur in oxides as the size of the crystals is reduced down to the nanometer sca…
Multi-fold Enhancement of Quantum Dot Luminescence in a Plasmonic Metamaterial
K. Tanaka, E. Plum, J. Y. Ou +2
We report that hybridizing semiconductor quantum dots with plasmonic metamaterial leads to a multi-fold intensity increase and narrowing of their photoluminescence spectrum. The lu…
Supersymmetric Quantum Mechanics under Point Singularities
Takashi Uchino, Izumi Tsutsui
We provide a systematic study on the possibility of supersymmetry (SUSY) for one dimensional quantum mechanical systems consisting of a pair of lines or intervals [-l, l] each…
Supersymmetric Quantum Mechanics with a Point Singularity
Takashi Uchino, Izumi Tsutsui
We study the possibility of supersymmetry (SUSY) in quantum mechanics in one dimension under the presence of a point singularity. The system considered is the free particle on a li…