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*挾間　優治　Yuji Hazama[#e6820aee]
*Yuji Hazama[#e6820aee]

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#ref(rome.JPG,center,8%)
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CENTER:Rome in September, 2013.

***Education [#hb3b1e94]

2015 Ph.D (Science) Kyoto University~
2012 MS (Science) Kyoto University~
2010 BS (Science) Kyoto University~


***Research Interest [#na8341f6]
I'm working on the many-body physics of excited states in condensed matters.
Such systems show distinct properties from ground states, which arise from the correlations among various degrees of freedom combined with the nonequilibrium nature of the systems. My recent research is particularly focused on the electronic states in highly excited diamonds.

***Original papers [#r68cc34b]
+Yuji Hazama, Nobuko Naka, and Heinrich Stolz~
Mass-anisotropy splitting of indirect excitons in diamond~
Phys. Rev. B ''90'', 045209 (2014)~
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Why do excitons in diamond have fine structures in their energy levels? We tackled this question and revealed that the anisotropy of the effective mass of electrons is playing a crucial role.
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+Yuji Hazama, Nobuko Naka, Makoto Kuwata-Gonokami and Koichiro Tanaka~
Resonant creation of indirect excitons in diamond at the phonon-assisted absorption edge~
EPL ''104'' 47012 (2013)~
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In this work, we proposed and evaluated a new photo-excitation method to create a many-body system with cold and dense electrons and holes in diamond. We also determined fundamental quantities of free excitons, such as their lifetime and inter-level relaxation time.
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***Room [#a57f1a16]
理学部5号館122号室
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Moved to ISSP, The University of Tokyo, Japan.