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{\Large \bf Solid State Ion Physics Group}\\
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Professor           &:&Takeshi~Hattori\\
Associate Professor&:&Yukio~Shibata and Jun'ichi~Kawamura\\
Assistant Professor &:&Osamu~Kamishima\\
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(http://www.ssip.rism.tohoku.ac.jp/)\\
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Our group is working mainly on solid state ionic materials to 
understand physics of ion dynamics in 
maters. Local structures and electronic structures 
of disordered materials are studied through interaction between light and 
materials by optical absorption, light emission and scattering. 
Especially, 
"Superionic conductor", which is a typical disordered solid state material 
with ionic mobility even as high as in liquid, is studied.
 (1) Development of high-resolution spectroscopy such as site selective 
spectroscopy and hole burning spectroscopy: Study on local structure in 
superionic conductors.
 (2) Development of non-linear spectroscopy using femto-second laser: 
Direct observation of ionic motion in materials.
 (3) Optical absorption /reflection and photoemission spectroscopy in 
vacuum 
ultraviolet region: Study on electronic band of superionic conductors.
 (4) Development of light scattering spectroscopy in low frequency
region: Study on interaction between low energy excitation and ionic 
motion in solids.
 (5) Synthesis of superionic superlattice using laser ablation method: 
Study on fast ion dynamics in superionic superlattice.



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