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Hakodate National College of Technology, Tokura-cho 14-1, Hakodate, Hokkaido 042-8501, Japan Department of Physics and Mathematics, Aoyama Gakuin University, Fuchinobe 5-10-1, Sagamihara, Kanagawa 229-8558, Japan 2 Kyoto Sangyo University, Motoyama, Kamigamo, Kita-ku, Kyoto 603-8555, Japan Multiferroics Project (MF), ERATO, Japan Science and Technology… (More)

- Yasuhiro Homma, Shin Miyahara, Atsuhiko Mogami, Itaru Morohashi, Tomonori Baba, Kazuo Kaneko
- Archives of Orthopaedic and Trauma Surgery
- 2013

Femoral head fracture associated with hip dislocation is relatively rare but very severe injury. Due to its severity and the need of joint exposure for the reduction of femoral head fracture, the surgical treatment cannot but accompany many complications, including the osteonecrosis of the femoral head, heterotopic ossification, and post-traumatic… (More)

We introduce a systematic method for constructing a class of lattice structures that we call “partial line graph”s. In tight-binding models on partial line graphs, energy bands with flat energy dispersions emerge. This method can be applied to twoand three-dimensional systems. We show examples of partial line graphs of square and cubic lattices. The method… (More)

- Hirohiko Ichikawa, Luna Kano, +7 authors Kazuma Hirota
- 2008

We have observed the orbital ordering in the ferromagnetic Mott-insulator Lu 2 V 2 O 7 by the polarized neutron diffraction technique. The orbital ordering pattern determined from the observed magnetic form factors can be explained in terms of a linear combination of wave functions |yz, |zx and |xy; |0 = 1 3 |xy + 1 3 |yz + 1 3 |zx ∝ |(x + y + z) 2 − r 2 ,… (More)

- Karlo Penc, Jean-Baptiste Fouet, Shin Miyahara, Oleg Tchernyshyov, Frédéric Mila
- Physical review letters
- 2007

We show that Dzyaloshinskii-Moriya (DM) interactions can substantially modify the phase diagram of spin-1/2 Heisenberg ladders in a magnetic field provided they compete with exchange. For nonfrustrated ladders, they induce a local magnetization along the DM vector that turns the gapless intermediate phase into an Ising phase with broken translational… (More)

We investigated the double-exchange spin ice (DESI) model on a kagomé lattice by Monte Carlo simulation to study the effects of a geometrical frustration, and the mechanism that generates an ordered state in a metallic system. The DESI model on the kagomé lattice is a frustrated metallic system due to an effective ferromagnetic interaction between localized… (More)

We investigate a detail of a dodecamer cluster ordering in a double-exchange spin ice model on a kagomé lattice. In frustrated systems, ordinary spin orderings are suppressed and macroscopic degeneracy remains down to low temperatures. In some frustrated systems, the degeneracy is lifted due to residual interactions and cluster orderings are stabilized. In… (More)

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