28 citations · 51 across the 8 of their papers we have counts for
8 papers
Characteristic ferroelectric domains and their dynamic behavior in ordered Pb(ScNb)O
Hiroshi Nakajima, Satoshi Hiroi, Hirofumi Tsukasaki +5
Pb-based perovskites with multiple cations are fascinating materials showing various phenomena such as high piezoelectric, electromechanical, and relaxor properties. While chemical…
Unusual nanoscale coexistence of polar-nonpolar domains underlying oxygen storage properties in Ho(Mn, Ti)O
Hiroshi Nakajima, Kento Uchihashi, Hirofumi Tsukasaki +10
Hexagonal manganese oxides RMnO show intriguing topological ferroelectric-domain walls with variable conductivity, leading to domain wall engineering. Despite the numerous expe…
Magnetization controlled by crystallization in soft magnetic Fe-Si-B-P-Cu alloys
Hiroshi Nakajima, Akihiro Osako, Noriharu Yodoshi +8
Soft magnetic materials have low coercive fields and high permeability. Recently, nanocrystalline alloys obtained using annealing amorphous alloys have attracted much interest sinc…
Direct observation of monoclinic polar nanoregions in the relaxor ferroelectric Pb(YbNb)O-PbTiO
Hiroshi Nakajima, Satoshi Hiroi, Hirofumi Tsukasaki +4
Relaxor ferroelectrics are applied in electronic devices such as actuators and sonars. Morphotrophic phase boundaries (MPBs) with monoclinic structures are known for their high pie…
Stabilization of layered perovskite structures via strontium substitution in CaTiO revealed via elemental mapping
Kosuke Kurushima, Hiroshi Nakajima, Shinya Mine +5
Extensive studies have been performed on layered compounds, ranging from layered cuprates to van der Waals materials with critical issues of intergrowths and stacking faults. Howev…
Electrostatic potential measurement at the Pt/TiO interface using electron holography
Hiroshi Nakajima, Toshiaki Tanigaki, Takaaki Toriyama +3
The interface of Pt/TiO plays an essential role in device engineering and chemical reactions. Here, we report the electrostatic potential distribution of a Pt/TiO interface…
Formation mechanisms of magnetic bubbles in an M-type hexaferrite: the role of chirality reversals at domain walls
H. Nakajima, A. Kotani, K. Harada +2
We examined the formation mechanisms of magnetic bubbles in an M-type hexaferrite via Lorentz microscopy. When magnetic fields were perpendicularly applied to a thin sample of BaFe…
Self-assembled structure of dendronized CdS nanoparticles
Hiroshi Nakajima, Daichi Matsuki, Yumi Fukunaga +6
Self-assembled dendronized CdS nanoparticles have been attracting considerable attention because of their photoluminescence properties depending on annealing treatments. In this st…