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TU Berlin

Inhalt des Dokuments

Publikationen 1992 - 1990

1992

An Effect of Spin Excitations on the Infrared-Active Phonons in
YBa2Cu4O8 and YBa2Cu3O7-δ Superconductors

A.P. Litvinchuk, C. Thomsen, and M. Cardona
Seventeenth International Conference on Infrared and Millimeter Waves, Proc. SPIE v. 1992, p. 73 (1992).

Phonon Anomalies above Tc in YBa2Cu4O8 and YBa2Cu3O7-δ
Superconductors: an Effect of Coupling to Spin Excitations

A. Litvinchuk, C. Thomsen, and M. Cardona
Solid State Commun.  83, 343 (1992).

Raman Study of YBa2Cu3O7-δ / PrBa2Cu3O7-δ superlattices
A. Litvinchuk, C. Thomsen, I.E. Trofimov, H.-U. Habermeier, and M. Cardona
Phys. Rev. B 46, 14017 (1992).
paper (PDF, 431,7 KB)

Determination of the Degree of Epitaxy in YBa2Cu3O7 Thin Films by Raman
Spectroscopy

C. Thomsen, H.-U. Habermeier, R. Wegerer, and M. Cardona
Solid State Commun. 83, 199 (1992).

Comment on "Rotational Ordering Transition in Single-Crystal C60 Studied by Raman Spectroscopy"
V.G. Hadjiev, C. Thomsen
Phys. Rev Lett. Vol. 69, No. 7, 1146 (1992)
paper (PDF, 96,0 KB)

Optical Phonons in (Y/Pr)Ba2Cu3O7 Superlattices
A. Litvinchuk, D. Leach, C. Thomsen, I. Trofimov, H.U. Habermeier, and M. Cardona
ibid., p.888.

Raman-Scattering Test for Local Orthorhombic Strains in YBa2Cu3Ox
V.G. Hadjiev, C. Thomsen, and M. Cardona
ibid., p. 878.

Observation of the Coupling between a Crystal-Field Excitation of Nd3+
and a Raman-Active Phonon in Pb2Sr2NdCu3O8

R. Wegerer, C. Thomsen, and M. Cardona
ibid. 896.

q-Dependent Linewidths in the Raman Spectra of YBa2Cu3O7: Evidence for
Landau-Damping of Optical Phonons

C. Thomsen, B. Friedl, and M. Cardona
XIIIth International Conference on Raman Spectroscopy,
eds. W. Kiefer, M. Cardona, G. Schaack, F.W. Schneider, H.W. Schrötter (Wiley, New York, 1992), p. 894.

Technological and Physical Aspects of Raman Scattering in High-Tc Superconductors
C. Thomsen
Advanced Materials 4, 341 (1992).

Effect of Oxygen Disorder on Superconductivity-Induced Self-Energy
Effects in Impurity-Free YBa2Cu3O7-δ

V. G. Hadjiev, C. Thomsen, A. Erb, G. Müller-Vogt, M. R. Koblischka, and M. Cardona

Effects of Landau Damping on the Raman-Active Phonons of YBa2
Cu3O7-δ

B. Friedl, C. Thomsen, H.-U. Habermeier, and M. Cardona
Solid State Commun. 81, 989 (1992).

Chain-Oxygen Vibrations in YBa2Cu3O7-δ and
YBa2Cu4O8

C. Thomsen, A. Litvinchuk, E. Schönherr, and M. Cardona
Phys. Rev. B 45, 8154 (1992).
paper (PDF, 309,4 KB)

Transverse Acoustic Phonons in Amorphous Silicon
C. Thomsen and E. Bustarret
J. Non-Crystal. Solids 141, 265 (1992).

Far-Infrared Spectroscopy of the Superconductor YBa2Cu4O8
A. Litvinchuk, C. Thomsen, P. Murugaraj, and M. Cardona
Z. Phys. B - Condensed Matter 86, 329 (1992).

 

1991

Self-Energies of Infrared-Active Phonons in RBa2Cu3O7-δ
A. Litvinchuk, C. Thomsen, and M. Cardona
Solid State Commun. 80, 257 (1991).

Far-Infrared Study of Phonon Anomalies in RBa2Cu3O7-δ
and YBa2Cu4O8 Superconductors

A. Litvinchuk, C. Thomsen, and M. Cardona
Sexteenth International Conference on Infrared and Millimeter Waves, eds.
M.R. Siegrist, M.Q. Tan, T.M. Tran, Eds., SPIE, Vol. 1576, p. 22 (1991).

Lichtstreuung an Hochtemperatursupraleitern
C. Thomsen
Habilitationsschrift, TU München, 1991.

Infrared Reflection of RBa2Cu3O7-δ Superconductors: Phonon Self-Energy
Effects

A. Litvinchuk, C. Thomsen, and M. Cardona
Physica C 185-189, 987 (1991).

The Influence of Au and Pr on the Superconductivity-Related Gap in
RBa2Cu3O7-δ

C. Thomsen, B. Friedl, M. Cieplak, and M. Cardona
Physica C 185-189, 745 (1991).

Infrared-Active Phonons in La2-xSrxCaCu2O6
A. Litvinchuk, C. Thomsen, M. Cardona, P. Stastny, and D.M. Mateev
Phys. Rev. B 44, 9723 (1991).

Phononenselbstenergien in Hochtemperatur Supraleitern
C. Thomsen
Physikalische Blätter 47, Nr. 7, 602 (1991).

Raman Scattering in High-Tc Superconductors
C. Thomsen
Festkörperprobleme, Advances in Solid State Physics, Vol. 31, ed. by U. Rössler
(Vieweg, Braunschweig, 1991), p. 1.

Effect of Substitutional Impurities on the Superconducting Gap of
YBa2Cu3O7-δ

C. Thomsen, B. Friedl, M. Cieplak, and M. Cardona
Solid State Commun.78, 727 (1991).

Intensity Anomalies of Raman-Active Phonons in the
Superconducting State of YBa2Cu3O7-δ

B. Friedl, C. Thomsen, H.-U. Habermeier, and M. Cardona
Solid State Commun.78, 291 (1991).

Optical Phonons in the T* Structure: Nd2-xCexSryCuO4
A. Litvinchuk, C. Thomsen, P. Murugaraj, E.T. Heyen, and M. Cardona
Phys. Rev. B 43, 13060 (1991).
paper (PDF, 493,9 KB)

Comparison of the Phonon Spectra of 70Ge and natural Ge crystals:
Effects of Isotopic Disorder

H.D. Fuchs, C.H. Grein, C. Thomsen, M. Cardona, W.L. Hansen, E.E. Haller
Phys. Rev. B  43, 4835 (1991).
paper (PDF, 571,5 KB)

Light Scattering in High-Tc Superconductors
C. Thomsen
in: Light Scattering in Solids VI, Topics in Applied Physics, Vol. 68, ed. by M. Cardona and G. Güntherodt,
(Springer Verlag, Heidelberg, 1991), p. 285.

 

1990

Temperature-Dependent Self-Energies of Raman-Active
Phonons in RBa2Cu3O7-δ

B. Friedl, C. Thomsen, and M. Cardona
Proceedings of the 3rd German-Sowiet Bilateral Seminar on High-Temperature
Superconductivity, Karlsruhe, 8. - 12. Oct. 1990, VDI.

Electron-Phonon Coupling of Apex Oxygen in RBa2Cu3O7-δ
B. Friedl, C. Thomsen, E. Schönherr, and M. Cardona
Solid State Commun.76, 1107 (1990).

Raman Study of the Ge Phonon Side Band
D.W. Mowbray, H. Fuchs, D.W. Niles, M. Cardona, C. Thomsen, and B. Friedl
20th International Conference on the Physics of Semiconductors, eds. E.M.
Anastassakis and J.D. Joannopoulos (World Scientific, Singapore, 1990), p. 2017.

Determination of the Superconducting Gap in RBa2Cu3O7-δ
B. Friedl, C. Thomsen, and M. Cardona
Phys. Rev. Lett. 65, 915 (1990).
paper (PDF, 330,7 KB)

Temperature Dependent Lifetime of Spin Excitations in REBa2Cu3O6 (RE = Eu, Y)
P. Knoll, C. Thomsen, M. Cardona, and P. Murugaraj
Phys. Rev. B 42, 4842 (1990).
paper (PDF, 396,3 KB)

Resonant Raman Scattering in YBa2Cu3O7, YBa2Cu3O
6
, and YBa2Cu4O8

E.T. Heyen, R. Liu, C. Thomsen, and M. Cardona
Electronic Properties of High-Temperature Superconductors and Related Compounds, eds. H. Kuzmany, M. Mehring, and J. Fink, Solid State
Sciences 99 (Springer, Heidelberg, 1990), p. 324.

Probes of Superconductivity: Raman Scattering
C. Thomsen and B. Friedl
Electronic Properties of High-Temperature Superconductors and Related Compounds, eds. H. Kuzmany, M. Mehring, and J.Fink, Solid State Sciences 99 (Springer, Heidelberg, 1990), p. 302.

Phonon Self-Energies and the Gap of High-Temperature Superconductors
C. Thomsen, M. Cardona, B. Friedl, C.O. Rodriguez, I.I. Mazin, and O.K. Andersen
Solid State Commun.75, 219 (1990).

Phonons in High Tc Materials: Recent Results
C. Thomsen
XIIth International Conference on Raman Spectroscopy, eds. J.R. Durig, J.F. Sullivan (Wiley, New York, 1990), p. 404.

Identification of the 1250 cm -1  Raman Feature in YBa2Cu3O6
C. Thomsen, E. Schonherr, B. Friedl, and M. Cardona
Phys. Rev. B 42, 943 (1990).
paper (PDF, 267,0 KB)

Optical Phonons in YBa2Cu4O8 and Y2Ba4Cu7O15-δ
E.T. Heyen, R. Liu, C. Thomsen, R. Kremer, M. Cardona, J. Karpinski, E. Kaldis, and  S. Rusiecki
Phys. Rev. B 41, 11058 (1990).
paper (PDF, 891,2 KB)

Resonant Raman Scattering in High-Tc Superconductors
E.T. Heyen, R. Liu, B. Gegenheimer, C. Thomsen, M. Cardona, S. Piñol, and D. McK. Paul
Phonons 89, eds. S. Hunklinger, W. Ludwig, G. Weiss (World Scientific, Singapore 1990), p. 346

Raman Scattering in High-Tc Superconductors
C. Thomsen
Phonons 89, eds. S. Hunklinger, W. Ludwig, G. Weiss (World Scientific, Singapore 1990), p. 247.

Resonant Raman Scattering in the Pb2Sr2(Y,Ca)Cu3O8+δ Superconductor
E.T. Heyen, R. Liu, M. Garriga, B. Gegenheimer, C. Thomsen, and M. Cardona
Phys. Rev. B 41, 830 (1990).
paper (PDF, 342,7 KB)

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