Comparison of lattice vibrations in nickel- and manganese-ferrite single crystals

1965 ◽  
Vol 15 (6) ◽  
pp. 425-427 ◽  
Author(s):  
L. Červinka
Keyword(s):  
Single Crystals ◽  
Lattice Vibrations ◽  
Manganese Ferrite

Long-wavelength lattice vibrations of Ag3In5Se9 and Ag3In5Te9 single crystals — An inversion of LO- and TO-mode frequencies

2016 ◽  
Vol 30 (18) ◽  
pp. 1650229 ◽  
Author(s):  
Nizami Mamed Gasanly
Keyword(s):  
Refractive Index ◽  
Single Crystals ◽  
Longitudinal Optical ◽  
Absorption Index ◽  
Energy Losses ◽  
Optical Parameters ◽  
Lattice Vibrations ◽  
Frequency Range ◽  
Long Wavelength ◽  
Optical Modes

Infrared (IR) reflectivities are registered in the frequency range of 50–2000 cm[Formula: see text] for Ag3In5Se9 and Ag3In5Te9 single crystals grown by Bridgman method. Three infrared-active modes are detected in spectra. The optical parameters, real and imaginary parts of the dielectric function, the function of energy losses, refractive index, absorption index and absorption coefficient were calculated from reflectivity experiments. The frequencies of transverse and longitudinal optical modes (TO and LO modes) and oscillator strength were also determined. The bands detected in infrared spectra were tentatively attributed to various vibration types (valence and valence-deformation). The inversion of LO- and TO-mode frequencies of the sandwiched pair was observed for studied crystals.

Anisotropy of thin-film single crystals of magnesium-manganese ferrite induced by plastic strain

1982 ◽  
Vol 25 (3) ◽  
pp. 217-220 ◽  
Author(s):  
L. A. Mitlina ◽  
A. V. Pets ◽  
V. V. Molchanov
Keyword(s):  
Thin Film ◽  
Plastic Strain ◽  
Single Crystals ◽  
Manganese Ferrite

Anharmonicity of Lattice Vibrations in Bi2Se3 Single Crystals

2019 ◽  
Vol 53 (3) ◽  
pp. 291-295 ◽  
Author(s):  
Z. I. Badalova ◽  
N. A. Abdullayev ◽  
G. H. Azhdarov ◽  
Kh. V. Aliguliyeva ◽  
S. Sh. Gahramanov ◽  
...  
Keyword(s):  
Single Crystals ◽  
Lattice Vibrations

Ferrimagnetic Resonance in Single Crystals of Manganese Ferrite

1955 ◽  
Vol 100 (2) ◽  
pp. 750-752 ◽  
Author(s):  
J. F. Dillon ◽  
S. Geschwind ◽  
V. Jaccarino
Keyword(s):  
Single Crystals ◽  
Manganese Ferrite

Effect of Cu ions on the polarization and polar lattice vibrations of potassium sodium strontium barium niobate single crystals

1996 ◽  
Vol 54 (13) ◽  
pp. 8954-8957 ◽  
Author(s):  
H. R. Xia ◽  
H. C. Chen ◽  
H. Yu ◽  
L. J. Hu ◽  
K. X. Wang ◽  
...  
Keyword(s):  
Single Crystals ◽  
Lattice Vibrations ◽  
Strontium Barium Niobate ◽  
Strontium Barium ◽  
Potassium Sodium ◽  
Cu Ions ◽  
Polar Lattice
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