scholarly journals Optical study of the electronic structure of locally noncentrosymmetric CeRh2As2

2021 ◽  
Vol 104 (24) ◽  
Author(s):  
Shin-ichi Kimura ◽  
Jörg Sichelschmidt ◽  
Seunghyun Khim
Keyword(s):  
Electronic Structure ◽  
Optical Study

Optical Study of the Electronic Structure of Diamond

1967 ◽  
Vol 161 (3) ◽  
pp. 730-735 ◽  
Author(s):  
R. A. Roberts ◽  
W. C. Walker
Keyword(s):  
Electronic Structure ◽  
Optical Study

scholarly journals Optical Study of Electronic Structure and Photoinduced Dynamics in the Organic Alloy System [(EDO-TTF)0.89(MeEDO-TTF)0.11]2PF6

2019 ◽  
Vol 9 (6) ◽  
pp. 1174 ◽  
Author(s):  
Tadahiko Ishikawa ◽  
Yohei Urasawa ◽  
Taiki Shindo ◽  
Yoichi Okimoto ◽  
Shin-ya Koshihara ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electronic Structure ◽  
Absorption Spectra ◽  
Structural Changes ◽  
Alloy System ◽  
Charge Ordering ◽  
Center Frequency ◽  
Relaxation Processes ◽  
Optical Study ◽  
Small Shift

Over the past two decades (EDO-TTF)2PF6 (EDO-TTF = 4,5-ethylenedioxytetrathiafulvalene), which exhibits a metal–insulator (M–I) phase transition with charge–ordering (CO), has been investigated energetically because of attractive characteristics that include ultrafast and massive photoinduced spectral and structural changes. In contrast, while its crystal structure has much in common with the (EDO-TTF)2PF6 crystal, the organic alloy system of [(EDO-TTF)0.89(MeEDO-TTF)0.11]2PF6 (MeEDO-TTF = 4,5-ethylenedioxy-4′-methyltetrathiafulvalene) exhibits a quite different type of M–I phase transition that is attributed to Peierls instability. Here, an optical study of the static absorption spectra and the time-resolved changes in the absorption spectra of [(EDO-TTF)0.89(MeEDO-TTF)0.11]2PF6 are reported. The observed absorption spectra related to the electronic structure are highly anisotropic. With a reduction in temperature (T), the opening of a small optical gap and a small shift in the center frequency of the C=C stretching mode are observed along with the M–I phase transition. Additionally, photoinduced transient states have been assigned based on their relaxation processes and transient intramolecular vibrational spectra. Reflecting small valence and structural changes and weak donor–anion interactions, a photoinduced transient state that is similar to the thermal-equilibrium high-T metallic phase appears more rapidly in the alloy system than that in (EDO-TTF)2PF6.

Optical Study of Electronic Structure and Nonmetal-Metal Transition of Gd2S3

1993 ◽  
Vol 62 (12) ◽  
pp. 4331-4337 ◽  
Author(s):  
Shin-ichi Kimura ◽  
Fumitaka Arai ◽  
Takashi Suzuki ◽  
Mikihiko Ikezawa
Keyword(s):  
Electronic Structure ◽  
Optical Study

scholarly journals Doping Effects on the Electronic Structure of an Anisotropic Kondo Semiconductor CeOs2Al10: An Optical Study with Re and Ir Substitution

2016 ◽  
Vol 85 (12) ◽  
pp. 123705 ◽  
Author(s):  
Shin-ichi Kimura ◽  
Hitoshi Takao ◽  
Jo Kawabata ◽  
Yoshihiro Yamada ◽  
Toshiro Takabatake
Keyword(s):  
Electronic Structure ◽  
Optical Study ◽  
Doping Effects ◽  
Kondo Semiconductor

Electronic structure of UPt 3 : A low energy optical study

1987 ◽  
Vol 63-64 ◽  
pp. 377-379 ◽  
Author(s):  
F. Marabelli ◽  
P. Wachter ◽  
J.J.M. Franse
Keyword(s):  
Electronic Structure ◽  
Low Energy ◽  
Optical Study

Electronic structure of Sr14−xCaxCu24O41 investigated by optical study

1997 ◽  
Vol 282-287 ◽  
pp. 1121-1122 ◽  
Author(s):  
T. Osafune ◽  
N. Motoyama ◽  
H. Eisaki ◽  
S. Uchida
Keyword(s):  
Electronic Structure ◽  
Optical Study
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