111 citations · 698 across the 18 of their papers we have counts for
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Flat-band ferromagnetism in quantum dot superlattices
Hiroyuki Tamura, Kenji Shiraishi, Takashi Kimura +1
Possibility of flat-band ferromagnetism in quantum dot arrays is theoretically discussed. By using a quantum dot as a building block, quantum dot superlattices are possible. We con…
Magnetic field effects on two-dimensional Kagome lattices
Takashi Kimura, Hiroyuki Tamura, Kenji Shiraishi +1
Magnetic field effects on single-particle energy bands (Hofstadter butterfly), Hall conductance, flat-band ferromagnetism, and magnetoresistance of two-dimensional Kagome lattices…
Design of a semiconductor ferromagnet in a quantum dot artificial crystal
Kenji Shiraishi, Hiroyuki Tamura, Hideaki Takayanagi
We present the theoretical design of quantum dot (QD) artificial ferromagnetic crystals. The electronic structure calculations based on local spin density approximation (LSDA) show…