The optical and paramagnetic absorption spectra of MgO:Mn single crystals irradiated in a reactor

2004 ◽  
Vol 159 (10) ◽  
pp. 543-550 ◽  
Author(s):  
M. Abramishvili ◽  
K. Garibashvili ◽  
A. Kurasbediani ◽  
V. Kvachadze ◽  
Z. Akhvlediani ◽  
...  
Keyword(s):  
Single Crystals ◽  
Absorption Spectra ◽  
Paramagnetic Absorption

Infrared Absorption Spectra of Chromate Ions in RbCl Single Crystals

1986 ◽  
Vol 21 (1) ◽  
pp. K10-K12 ◽  
Author(s):  
A. A. Alybakov ◽  
R. T. Aitmatova ◽  
Sh. Akchalov ◽  
N. Toichiev
Keyword(s):  
Single Crystals ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Chromate Ions ◽  
Infrared Absorption Spectra

Influence of nonstoichiometry on the Urbach’s tails of absorption spectra for CuInSe2 single crystals

1996 ◽  
Vol 80 (2) ◽  
pp. 1106-1111 ◽  
Author(s):  
T. Shioda ◽  
S. Chichibu ◽  
T. Irie ◽  
H. Nakanishi ◽  
T. Kariya
Keyword(s):  
Single Crystals ◽  
Absorption Spectra

Optical Spectroscopy of Mixed Metamagnetic FexCo1-xCl2 Crystals

1980 ◽  
Vol 35 (10) ◽  
pp. 1013-1019 ◽  
Author(s):  
Friedrich Seitz ◽  
Terence E. Wood ◽  
Peter Day
Keyword(s):  
Charge Transfer ◽  
Temperature Dependence ◽  
Single Crystals ◽  
Absorption Spectra ◽  
Optical Spectroscopy ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Broad Band ◽  
Mixed Crystals ◽  
Magnetic Exchange

Abstract Electronic absorption spectra are reported for single crystals of composition FexCo1-xCl2 as a function of temperature from 300 K to 4 K. A broad band at 436 nm is assigned to Fe (II) → Co (II) charge transfer and the temperature dependence of its intensity is related to the magnetic exchange between the ions. The 2T1g(2H) excitation of Co (II) in the mixed crystals has an unusual temperature dependence which correlates with the Néel temperature.

Characteristic Investigations of Stoichiometric LiNbO3 Single Crystal Fiber Co-Doped with Tb and Mn

2004 ◽  
Vol 449-452 ◽  
pp. 985-988
Author(s):  
S.M. Lee ◽  
J.W. Shur ◽  
T.I. Shin ◽  
W.S. Yang ◽  
G.Y. Kim ◽  
...  
Keyword(s):  
Absorption Band ◽  
Single Crystal ◽  
Optical Microscopy ◽  
Single Crystals ◽  
Absorption Spectra ◽  
Room Temperature ◽  
Crystal Fiber ◽  
Ft Ir ◽  
Homogeneous Distributions ◽  
Co Doped

[MnO2(1.0mol%) : Tb4O7(0.5mo%)] doped stoichiometric LiNbO3 (Mn:Tb:SLN) single crystals of 0.5~1.0 mm in diameter and 30~35 mm in length were grown by micro pulling down(µ-PD) method. We investigated the photoluminescence (PL) properties of Mn:Tb:SLN single crystal. The OH- absorption band of the single crystals observed infrared the absorption spectra by using an FT-IR spectrophotometer at room temperature. Homogeneous distributions of Mn and Tb concentration were confirmed by the EPMA and observed defects by optical microscopy.

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