Optical conductivity spectra and electronic structure of Bi2Sr2(Y1−xCax)Cu2Oy system

1999 ◽  
Vol 60 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Takanori Itoh ◽  
Kazuo Fueki ◽  
Yasumoto Tanaka ◽  
Hideo lhara
Keyword(s):  
Electronic Structure ◽  
Optical Conductivity ◽  
Conductivity Spectra

Variation of electronic structure inLa1−xSrxMnO3f(0⩽x⩽0.3) as investigated by optical conductivity spectra

1997 ◽  
Vol 55 (7) ◽  
pp. 4206-4214 ◽  
Author(s):  
Y. Okimoto ◽  
T. Katsufuji ◽  
T. Ishikawa ◽  
T. Arima ◽  
Y. Tokura
Keyword(s):  
Electronic Structure ◽  
Optical Conductivity ◽  
Conductivity Spectra

scholarly journals Электронная структура и оптические спектры соединений GdFeAl и GdFeSi

2021 ◽  
Vol 63 (6) ◽  
pp. 700
Author(s):  
Ю.В. Князев ◽  
А.В. Лукоянов ◽  
Ю.И. Кузьмин ◽  
А.Г. Кучин ◽  
С.П. Платонов
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Comparative Analysis ◽  
Optical Conductivity ◽  
Electronic States ◽  
Wavelength Interval ◽  
Correlation Effects ◽  
Calculated Density ◽  
Density Of Electronic States ◽  
Conductivity Spectra

Results of investigations of electronic structure and optical properties of GdFeAl and GdFeSi compounds are presented. Spin-plarized density of states and interband optical conductivity spectra were calculated in frame of DFT+U technique with a correction for strong correlation effects in 4f shell of Gd. Optical properties were measured by ellipsometric technique in wavelength interval of 0.22 – 16 μm. Nature of quantum light absorption is discussed on the base of comparative analysis of experimental and calculated spectra. It is shown that main features of frequency dependencies of the optical conductivity are interpret qualitatively by the calculated density of electronic states.

Optical Properties and Electronic Structure of LaNi5-XCux (x=0–1.2) Intermetallic System

2010 ◽  
Vol 168-169 ◽  
pp. 529-532 ◽  
Author(s):  
Yu.V. Knyazev ◽  
Y.I. Kuz’min ◽  
A.V. Lukoyanov ◽  
Anatoly G. Kuchin
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Optical Conductivity ◽  
Theoretical Calculations ◽  
Generalized Gradient ◽  
Broad Absorption ◽  
Generalized Gradient Approximation ◽  
Electron Transitions ◽  
Intermetallic System ◽  
Conductivity Spectra

Optical properties of the LaNi5-xCux (x = 0, 0.6, 1, 1.2) compounds were studied. It was shown that substitution of copper for nickel led to noticeable changes in the optical conductivity spectra. Calculations of the electronic structure of compounds with x = 0, 1, 2 were performed using a generalized gradient approximation. The interband optical conductivity of these intermetallics was calculated. The optical ellipsometrical measurements and theoretical calculations testify to the appearance of a broad absorption structure associated with the Cu 3d  Ni 3d electron transitions and increasing with the growth of copper content.

scholarly journals Optical conductivity of black phosphorus with a tunable electronic structure

2D Materials ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 025029 ◽  
Author(s):  
Jiho Jang ◽  
Seongjin Ahn ◽  
Hongki Min
Keyword(s):  
Electronic Structure ◽  
Optical Conductivity ◽  
Black Phosphorus

Mid-infrared optical conductivity spectra of Nd1−xSrxMnO3: orbital pattern dependent polaron hopping

2001 ◽  
Vol 364-365 ◽  
pp. 652-655 ◽  
Author(s):  
M.W Kim ◽  
J.H Jung ◽  
H.J Lee ◽  
S.K Lee ◽  
K.H Kim ◽  
...  
Keyword(s):  
Optical Conductivity ◽  
Polaron Hopping ◽  
Mid Infrared ◽  
Conductivity Spectra

scholarly journals Optical Conductivity and Electronic Structure of CeRu4Sb12 under High Pressure

2011 ◽  
Vol 80 (8) ◽  
pp. 084718 ◽  
Author(s):  
Hidekazu Okamura ◽  
Ryosuke Kitamura ◽  
Masaharu Matsunami ◽  
Hitoshi Sugawara ◽  
Hisatomo Harima ◽  
...  
Keyword(s):  
High Pressure ◽  
Electronic Structure ◽  
Optical Conductivity

ON THE ELECTRONIC STRUCTURE OF CrO2: NEW EXPERIMENTS AND THEORY

1993 ◽  
Vol 07 (01n03) ◽  
pp. 345-348 ◽  
Author(s):  
H. BRÄNDLE ◽  
D. WELLER ◽  
J. C. SCOTT ◽  
J. STICHT ◽  
P. M. OPPENEER ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Energy Range ◽  
Ab Initio ◽  
Optical Conductivity ◽  
Optical Constants ◽  
Conductivity Tensor ◽  
Experimental Confirmation ◽  
Spin Polarized ◽  
Self Consistent ◽  
First Time

Spectroscopic investigations of the optical constants n and k and the magneto-optical polar Kerr effects θK and εK were used to deterimine the diagonal and off-diagonal conductivity tensor elements of CrO 2 in the energy range 0.8-5eV. The data can be readily explained on the basis of self-consistent spin-polarized bandstructure calculations. A direct comparison of the measured and calculated diagonal optical conductivity is presented for the first time, which can be viewed as experimental confirmation of the ab initio calculated bandstructure of CrO 2.

Contribution of carriers to optical conductivity spectra of lanthanum manganites

1999 ◽  
Vol 41 (3) ◽  
pp. 426-432 ◽  
Author(s):  
N. N. Loshkareva ◽  
Yu. P. Sukhorukov ◽  
V. E. Arkhipov ◽  
S. V. Okatov ◽  
S. V. Naumov ◽  
...  
Keyword(s):  
Optical Conductivity ◽  
Lanthanum Manganites ◽  
Conductivity Spectra

scholarly journals Оптические свойства соединений YFe-=SUB=-2-=/SUB=- и TbFe-=SUB=-2-=/SUB=-

2020 ◽  
Vol 62 (7) ◽  
pp. 1004
Author(s):  
Ю.В. Князев ◽  
Ю.И. Кузьмин
Keyword(s):  
Optical Properties ◽  
Spectral Characteristic ◽  
Wavelength Range ◽  
Optical Conductivity ◽  
Light Absorption ◽  
Electronic States ◽  
Electron Transitions ◽  
Quantum Electron ◽  
Interband Light Absorption ◽  
Conductivity Spectra

Ellipsometric investigation of the optical properties of YFe2 and TbFe2 intermetalic compounds have been carried out in wavelength range of 0.22 –15 μm. A number of electronic and spectral characteristic was determined. Nature of interband light absorption in these materials is discussed on base of comparative analyses of experimental and theoretical optical conductivity spectra. Experimental optical conductivities of the compounds are shown to conform qualitatively to spectra calculated from densities of electronic states in the region of quantum electron transitions.

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