scholarly journals Investigation of optically active E1 transversal optic phonon modes in AlxGa1−xN layers deposited on 6H–SiC substrates using infrared reflectance

1998 ◽  
Vol 73 (13) ◽  
pp. 1760-1762 ◽  
Author(s):  
P. Wisniewski ◽  
W. Knap ◽  
J. P. Malzac ◽  
J. Camassel ◽  
M. D. Bremser ◽  
...  
Keyword(s):  
Optically Active ◽  
Infrared Reflectance ◽  
Phonon Modes ◽  
Optic Phonon

The Complete Set of Polar Optic Phonon Modes of Superlattices. Confined Bulk and Interface Modes

1988 ◽  
Vol 148 (1) ◽  
pp. 173-183 ◽  
Author(s):  
R. Enderlein ◽  
F. Bechstedt ◽  
G. Gerecke
Keyword(s):  
Phonon Modes ◽  
Optic Phonon ◽  
Complete Set

EFFECT OF SILVER DOPING ON INFRARED REFLECTANCE AND Tc OF SUPERCONDUCTING GdBa2Cu(1−x)3Ag3xO7

1990 ◽  
Vol 04 (11n12) ◽  
pp. 1889-1894
Author(s):  
A. MEMON ◽  
M.N. KHAN ◽  
S. AL-DALLAL ◽  
D.B. TANNER ◽  
C.D. PORTER
Keyword(s):  
Room Temperature ◽  
Phonon Mode ◽  
Resistivity Measurement ◽  
Infrared Reflectance ◽  
Optical Phonons ◽  
Ceramic Superconductor ◽  
Frequency Range ◽  
Phonon Modes ◽  
Silver Doping ◽  
Zero Resistance

Infrared reflectance of GdBa 2 Cu (1−x)3 Ag 3xO7 ceramic superconductor with the composition of x=0.025 and 0.05 have been performed in the frequency range of 100–5000 cm−1. All the infrared active phonon modes allowed by the selection rules were observed in the reflection spectra of these compounds. The optical conductivity as calculated from K-K analysis further confirms the existence of these optical phonons. Besides the increase of the reflectivity in the silver doped samples, an extra phonon mode is observed, which is normally not seen at room temperature reflectance of GdBa 2 Cu 3 O 7 compounds. The four probe resistivity measurement show zero resistance at 88 K for x=0, and 78 K for x=0.025 in GdBa 2 Cu (1−x)3 Ag 3x O 7 compound.

Surface magnetoplasmon-optic phonon modes in InSb

1973 ◽  
Vol 45 (2) ◽  
pp. 143-144 ◽  
Author(s):  
E.D. Palik ◽  
R. Kaplan ◽  
R.W. Gammon ◽  
H. Kaplan ◽  
J.J. Quinn ◽  
...  
Keyword(s):  
Phonon Modes ◽  
Optic Phonon

Optic phonon modes and superconductivity in αphase (Ti, Zr)-(H, D) alloys

1982 ◽  
Vol 12 (1) ◽  
pp. 79-86 ◽  
Author(s):  
R Hempelmann ◽  
D Richter ◽  
B Stritzker
Keyword(s):  
Phonon Modes ◽  
Optic Phonon

High-pressure Raman study of the optic-phonon modes in BeO

1985 ◽  
Vol 31 (12) ◽  
pp. 8332-8334 ◽  
Author(s):  
G. A. Kourouklis ◽  
A. K. Sood ◽  
H. D. Hochheimer ◽  
A. Jayaraman
Keyword(s):  
High Pressure ◽  
Phonon Modes ◽  
Optic Phonon ◽  
Raman Study

Infrared Absorption by Coupled Collective Cyclotron Excitation-Longitudinal-Optic Phonon Modes in InSb

1967 ◽  
Vol 18 (5) ◽  
pp. 159-162 ◽  
Author(s):  
R. Kaplan ◽  
E. D. Palik ◽  
R. F. Wallis ◽  
S. Iwasa ◽  
E. Burstein ◽  
...  
Keyword(s):  
Infrared Absorption ◽  
Phonon Modes ◽  
Optic Phonon ◽  
Longitudinal Optic ◽  
Longitudinal Optic Phonon
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