Structural Condensed Matter Physics Group 
Wakabayashi Lab.

We are doing structural condensed matter physics.
Origins of various properties of materials are examined 
from atomic arrangements, 
which are clarified by synchrotron x-ray diffraction.

What is the reason why we can learn the materials' property from the structure?
Think about the force applied to an atom at position r.
F is the r-derivative of U, the total energy of the solid.
Let us assume the atomic position is shifted a little. 
 If U increases, the displacement is pushed back,and
 if U decreases, the displacement is enhanced.
U is affected not only by the elastic interaction, 
but also by magnetism or other various electronic properties.
This is the reason why we can learn a lot from atomic arrangements.

Y.Wakabayashi, M.Nakamura, K.Sasaki, T.Maeda, Y.Kishi, H.Ishii, N.Kobayashi, S.Yanagisawa, Y.Shimo, and Y.Kubozono, J. Am. Chem. Soc. published online.
Spt. 2018
14 New publication:
H. Man, M. Halim, H. Sawa, M. Hagiwara, Y. Wakabayashi and S. Nakatsuji, J. Phys.: Condens. Matter (Topical Review)

Jul. 2018
15-19 Prof. Wakabayashi and four students attended International Surface X-ray and Neutron Scattering Conference (Pohang, Korea).
11  New publication:
"Spatial coherence of the insulating phase in quasi-two-dimensional LaNiO3 films"
 M. Anada, K. Kowa, H. Maeda, E. Sakai, M. Kitamura, H. Kumigashira, O. Sakata, Y. Nakanishi-Ohno, M. Okada, T. Kimura and Y. Wakabayashi, Phys. Rev. B, 98, 014105-1-8 (2018).

Jun. 2018
20   New publication:
  D. Kan, M. Anada, Y. Wakabayashi, H. Tajiri, and Y. Shimakawa, J. Appl. Phys. 123, 235303 (2018). (Editor's pick)

Apr. 2018
26   New publication:
            H. Ueda, Y. Tanaka, Y. Wakabayashi, T. Kimura, Physica B536,  118–121 (2018).
12 New publication:
            H. Fujii, K. Sasaki, Y. Wakabayashi, H. Tajiri, K. Miwa, S. Ono, R. Nouchi, e-J. Surf. Sci. Nanotech.  16 76-78 (2018).

Mar. 2018
27 New publication:
Y. Wakabayashi, T. Shirasawa, W. Voegeli, and T. Takahashi, J. Phys. Soc. Jpn. 87, 061010-1-12  (2018). (Review article)

22  Congratulations! Mr. Kazuki Nagai (B4) got a Dept. of Eng. Sci. Award.

Nov. 2017
14 New publication:
"Non-destructive method for the determination of the electric polarization orientation in thin films: illustration on gallium ferrite thin films"
C. Lefevre, A. Demchenko, C. Bouillet-Ulhaq, M. Luysberg, X. Devaux, F. Roulland, G. Versini, S. Barre, Y. Wakabayashi, N. Boudet, C. Leuvrey, M. Acosta, C. Meny, E. Martin, S. Grenier, V. Favre-Nicolin and N. Viart, Small Methods, 1, 1700234-1-8 (2017).

Oct. 2017
23-26 Prof. Wakabayashi and Mr. Fujii attended ISSS-8(Tsukuba) to make their presentations.
23 New publication:
M. Anada, Y. Nakanishi-Ohno, M. Okada, T. Kimura and Y. Wakabayashi, J. Appl. Cryst.  50 1611-1616 (2017).
Jul. 2017
24-28 Prof. Wakabayashi attended ICSOS-12 (Atlanta) to give a talk.

1st Prof. Tsuyoshi Kimura moved to Univ. of Tokyo, which makes Wakabayashi lab. started. 

March 2017
22nd    Congratulations! Mr. Masato Anada (M2) got the department head prize.  
19th      One of Prof. Wakabayashi's papers (J. Phys. Soc. Jpn. 2007) receives The 22nd Outstanding Paper Award of the Physical Society of Japan.
15th    Published a new paper:

“Structural deformation of the S=1 kagome-lattice compound KV3Ge2O9” 

E. Takagi, T. Aoyama, S. Hara, H. Sato, T. Kimura, and Y. Wakabayashi, Phys. Rev. B 95, 104416 (2017)

14th Congratulations! Mr. Masato Anada (M2) got a Poster prize  at quantum beam science festa.

was written by Prof. Wakabayashi.

D239,F231, Wakabayashi Laboratory, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan