Happo N.,Hiroshima City University |
Hayashi K.,Tohoku University |
Mimura K.,Osaka Prefecture University |
Wakita K.,Chiba Institute of Technology |
And 5 more authors.
Japanese Journal of Applied Physics | Year: 2011
Three-dimensional (3D) atomic images around the Tl atoms in single-crystal TlInSe2 thermoelectric material in the incommensurate phase were reconstructed by Tl LIII X-ray fluorescence holography measured at room temperature. In the obtained 3D image, the In atoms are clearly visible at the proper positions in the normal phase. The Tl atomic images are also observed but very weakly. By comparing the experimental image with a theoretically calculated one, it is concluded that only the Tl atoms have large spatial fluctuations, which are related to the incommensurate phase of this material. © 2011 The Japan Society of Applied Physics.