Abstract
We investigate the energy-loss function for a previously developed model of quasi-one-dimensional metals with two one-dimensional electron bands per donor and acceptor chains and the three-dimensional long-range Coulomb electron-electron interaction within the random phase approximation. It is essentially influenced by two hybridized collective modes which result from the strong coupling of the intraband plasmon and the interband dipolar modes. Our calculations show that the spectral weights of the renormalized plasmon and the dipolar mode dominate within the long wavelength limit, while for large longitudinal wave vectors the intraband electron-hole quasi-continuumgains some experimentally observable spectral weight as the second mode approaches it. The function obtained is brought into correspondence with the data of the quasi-one-dimensional organic conductor tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) obtained from electron energy-loss spectroscopy (EELS) measurements.
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References
Y. Takahashi et al., Appl. Phys. Lett. 88, 073504 (2006)
K. Shibata et al., Appl. Phys. Lett. 90, 193509 (2007)
M. Sakai et al., Synthetic. Met. 153, 293 (2005)
T. Hagesawa, J. Takeya, Sci. Technol. Adv. Mat. 10, 024314 (2009)
D. Pines, Elementary excitations in solids (McGraw-Hill Book Company, New York, 1971)
J. Fink et al., J. Electron Spectrosc. 117, 287–309 (2001)
R. F. Egerton, Rep. Prog. Phys. 72, 016502 (2009)
L. Hedin, S. Lundqvist, In: F. Seitz, D. Turnbull (Ed.), Solid state physics 23 (New York, Academic, New York, 1969) 1
S. Hufner et al., J. Electron Spectrosc. 100, 191 (1999)
S. Hufner, Springer Series Soli. 82, 1 (2003)
A. Bostwick et al., Science 328, 999 (2010)
J. J. Ritsko et al., Phys. Rev. Lett. 34, 1330 (1975)
P. F. Williams, A. N. Bloch, Phys. Rev. B 10, 1097 (1974)
P. F. Williams, A. N. Bloch, Phys. Rev. Lett. 36, 64 (1976)
L. M. Khan, J. Ruvalds, Phys. Rev. B 17, 4600 (1978)
D. B. Tanner et al., Phys. Rev. B 13, 3381 (1976)
C. S. Jacobsen, Lect. Notes. Phys. 95, 223 (1979)
H. Basista et al., Phys. Rev. B 42, 4088 (1990)
P. Županović, A. Bjeliš, S. Barišić, EPL-Europhys. Lett. 45, 188 (1999)
Ž. Bonačić Lošić, P. Županović, Cent. Eur. J. Phys. 8, 283 (2010)
S. Das Sarma, A. Madhubar, Phys. Rev. 23, 805 (1981)
S. Das Sarma, E. H. Hwang, Phys. Rev. B 54, 1936 (1996)
S. Das Sarma, E. H. Hwang, Phys. Rev. B 59, 10730 (1999)
B. Wunsch et al., New J. Phys. 8, 318 (2006)
E. H. Hwang, S. Das Sarma, Phys. Rev. B 75, 205418 (2007)
M. Polini et al., Phys. Rev. B 77, 081411 (2008)
P. K. Pyatkovskiy, J. Phys.-Condens. Mat. 21, 025506 (2009)
E. H. Hwang, S. Das Sarma, Phys. Rev. B 80, 205405 (2009)
A. L. Fetter, J. D. Walecka, Quantum theory of manyparticle systems (W. A. Benjamin, Inc., New York, Amsterdam, 1964)
A. S. Pennelly, C. J. Echardt, Chem. Phys. 12, 89 (1976)
D. Jérome, H. J. Schulz, Adv. Phys. 31, 299 (1982)
P. Županović, A. Bjeliš, S. Barišić, Z. Phys. B Con. Mat. 101, 387 (1996)
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Lošić, Ž.B. Energy-loss function of TTF-TCNQ. centr.eur.j.phys. 10, 172–180 (2012). https://doi.org/10.2478/s11534-011-0095-3
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DOI: https://doi.org/10.2478/s11534-011-0095-3