142 citations · 660 across the 50 of their papers we have counts for
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Thin-shell theory based analysis of radially pressurized multiwall carbon nanotubes
Hiroyuki Shima, Susanta Ghosh, Marino Arroyo +2
Elastic radial deformation of multiwall carbon nanotubes (MWNTs) under hydrostatic pressure is investigated within the continuum elastic approximation. The thin-shell theory, with…
Continuous Transition of Defect Configuration in a Deformed Liquid Crystal Film
Isaku Hasegawa, Hiroyuki Shima
We investigate energetically favorable configurations of point disclinations in nematic films having a bump geometry. Gradual expansion in the bump width Δ gives rise to a sudden s…
Anomalous phase shift in a twisted quantum loop
Hisao Taira, Hiroyuki Shima
Coherent motion of electrons in a twisted quantum ring is considered to explore the effect of torsion inherent to the ring. Internal torsion of the ring composed of helical atomic…
Flux-free conductance modulation in a helical Aharonov-Bohm interferometer
Hisao Taira, Hiroyuki Shima
A novel conductance oscillation in a twisted quantum ring composed of a helical atomic configuration is theoretically predicted. Internal torsion of the ring is found to cause a qu…
Manipulating the Tomonaga-Luttinger exponent by electric field modulation
Hiroyuki Shima, Shota Ono, Hideo Yoshioka
We establish a theoretical framework for artificial control of the power-law singularities in Tomonaga-Luttinger liquid states. The exponent governing the power-law behaviors is fo…
Point-defect haloing in curved nematic films
Isaku Hasegawa, Hiroyuki Shima
We investigate the correlation between the point disclination energies and the surface curvature modulation of nematic liquid crystal membranes with a Gaussian bump geometry. Due t…