Journals

Atomic-scale origin of polarity at {01-⁢1⁢8} twin walls in calcite 

Tomohiro Yamashita, Soma Seto, Yixin Lin, Yang Yang, Xiangdong Ding, Nicholas J. Butterfield, Ekhard Salje, Taro Kuwano, and Hiroko Yokota 

Phys. Rev. B 114, 024106 (2026) 

Plenary Talks at the International Conferences

Domain boundaries as polar objects: Symmetry breaking beyond the bulk 

Hiroko Yokota

ECAPD 2026(EUROPEAN CONFERENCE ON APPLICATIONS OF POLAR DIELECTRICS, June 7-10 2026, Oulu (Finland)

Invited Talks at the International Conferences

Polar structure imaging by second harmonic generation microscopy 

Hiroko Yokota

ADVANCED IMAGING OF FERROIC MATERIALS (Wilhelm and Else Heraeus Seminar) ,May 31-June 4 2026,  Bad Honnef , Germany

International Conferences

Second -harmonice generation study of polar e-twin walls in calcite

Tomohiro Yamashita, Soma Seto, Yixin Lin, Yang Yang, Ding Xiang-Dong, Nicolas J. Butterfield, Ekhard K. H. Salje, Taro Kuwano, Hiroko Yokota

Advanced Imaging of Ferroic Materials, Wilhelm and Else Heraeus Seminar, May 31-June 4.2026, Bad Honnef, Germany

Triclinic distortion in titanite-type oxides CaSnGeO5 and SrSnGeO5 

Taro Kuwano, Hiroko Yokota, Manabu Hagiwara, Toshiya Uohashi, Akitoshi Nakano, and Hiroki Taniguchi 

Deutsche Physikalische Gesellschaft, Mar. 8-13 2026, Technische Universität Dresden, Germany