Publication: Absence of localization and large dc conductance in random superlattices with correlated disorder
Loading...
Official URL
Full text at PDC
Publication Date
1994-11-15
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Citations
Exportar
Abstract
We study how the in8uence of structural correlations in disordered systems manifests itself in experimentally measurable magnitudes, focusing on dc conductance of semiconductor superlattices with general potential pro6les. We show that the existence of bands of extended states in these structures gives rise to very noticeable peaks in the 6nite-temperature dc conductance as the chem ical potential is moved through the bands or as the temperature is increased from zero. On the basis of these results we discuss how dc conductance measurements can provide information on the location and width of the bands of extended states. Our predictions can be used to demonstrate experimentally that structural correlations inhibit the localization eKects of disorder.
Description
© 1994 The American Physical Society.
It is with great pleasure that we thank collaboration and illuminating conversations with Enrique Maciá. A.S. is also thankful to Alan Bishop for warm hospital ityat Los Alamos National Laboratory where this paper was written in part. Work at Leganes is supported by the Direccion General de Investigacion Cientifica y Tecnica (Spain) through project PB92-0248, and by the European Union Human Capital and Mobility Programme through Contract No. ERBCHRXCT930413. Work at Madrid is supported by Universidad Complutense through Project No. PR161/93-4811.
UCM subjects
Unesco subjects
Keywords
Citation
1. J. C. Flores, J. Phys. Condens. Matter 1, 8471 (1989).
2. D. H. Dunlap, H.-L. Wu, and P. Phillips, Phys. Rev. Lett. 65, 88 (1990).
3. H.-L. Wu and P. Phillips, J. Chem. Phys. 9$, 7369 (1990).
4. H.-L. Wu and P. Phillips, Phys. Rev. Lett. BB, 1366 (1991).
5. P. Phillips and H.-L. Wu, Science 252, 1805 (1991).
6. A. Bovier, 3. Phys. A 25, 1021 (1992).
7. H.-L. Wu, W. Goff, and P. Phillips, Phys. Rev. B 45, 1623 (1992).
8. S. N. Evangelou and D. E. Katsanos, Phys. Lett. A 164, 456 (1992).
9. P. K. Datta, D. Giri, and K. Kundu, Phys. Rev. B 4'F, 10727 (1993).
10. S. N. Evangelou and A. Z. Wang, Phys. Rev. B 47, 13126 (1993).
11. F. Domínguez-Adame, E. Maciá, and A. Sánchez, Phys. Rev. B 48, 6054 (1993).
12. J. C. Flores and M. Hilke, 3. Phys. A 26, L1255 (1993).
13. A. Sánchez and F. Domínguez-Adame, j.Phys. A 27, 3725 (1994).
14. A. Sánchez, E. Maciá, and F. Domínguez-Adame, Phys. Rev. B 49, 147 (1994); 49, 15428(E) (1994).
15. F. Domínguez-Adame, B. Méndez, A. Sánchez, and E. Macia, Phys. Rev. B 49, 3839 (1994). 16. F. Domínguez-Adame, E. Maciá, and A. Sánchez, Phys. Rev. B 50, 6453 (1994).
17. R. Brito, F. Domínguez-Adame, and A. Sánchez (unpublished).
18. A. Sánchez, F. Domínguez-Adame, and E. Maciá, Phys. Rev. B (to be published).
19. J. M. Ziman, Models of Disorder (Cambridge University Press, London, 1979).
20. R. Merlin, K. Bajema, R. Clarke, F.- Y Juang, and P K. Battacharya, Phys. Rev. Lett. 55, 1768 (1985); J. Todd, R. Merlin, R. Clarke, K. M. Mohanty, and J. D. Axe, ibid. 57, 1157 (1986).
21. A. Chomette, B. Deveaud, A. Regreny, and G. Bastard, Phys. Rev. Lett. 57, 1464 (1986).
22. A. Sasaki, M. Kasu, T. Yamamoto, and S. Noda, Jpn. J. Appl. Phys. 28, L1249 (1989).
23. M. Kasu, T. Yamamoto, S. Noda, and A. Sasaki, Appl. Phys. Lett. 59, 800 (1991),and references therein.
24. E. Tuncel and L. Pavesi, Philos. Mag. B 65, 213 (1992).
25. D. J. Arent et oL, Phys. Rev. B 49, 11 173 (1994).
26. A. Wakahara, T. Hasegawa, K. Kuramoto, K. V. Vong, and A. Sasaki, Appl. Phys. Lett. 64, 1850 (1994).
27. R. de L. Kronig and W. G. Penney, Proc. R. Soc. London Ser. A 180, 499 (1931).
28. M. Jaros, Physics and Application of Semiconductor Microstructures (Clarendon Press, Oxford, 1989).
29. See, e.g., E. Lieb and D. C. Mattis, Mathematical Physics in One Dimension (Academic Press, New York, 1966).
30. Y. Tanaka and M. Tsukada, Phys. Rev. B 40, 4482 (1989).
31. G. J. Clerk and B. H. J. McKellar, Phys. Rev. C 41, 1198 (1990).
32. F. Domínguez-Adame, J. Phys. Condens. Matter 1, 109 (1989).
33. P. Erdos and R. C. Herndon, Helv. Phys. Acta 50, 513 (1977).
34. B. Mández, F. Domínguez-Adame, and E. Maciá, J. Phys. A 2B, 171 (1993).
35. J. E. Moyal, Philos. Mag. 4B, 263 (1955); P. V. Vavilov, Zh. Eksp. Teor. Fiz. 32, 920 (1957) [Sov. Phys. JETP 5, 749 (1957)j.
36. R. Landauer, IBM J. Res. Dev. 1, 223 (1957).
37. E. Maciá, F. Domínguez-Adame, and A. Sánchez, Phys. Rev. B 49, 9503 (1994).
38. E. Maciá, F. Domínguez-Adame, and A. Sánchez, Phys. Rev. E 50, 679 (1994).
39. H. L. Engquist and P. W. Anderson, Phys. Rev. B37, 1097 (1988).
40. J. F. Palmier, C. Minot, J. L. Lievin, F. Alexandre, J. C. Harmand, J. Dangla, C. Dubon-Chevallier, and D. Ankri, Appl. Phys. Lett. 49, 1260 (1986); T. DufBeld, R. Bhat, M. Koza, F. de Rosa, D. M. Hwarang, P. Grabbe, and S.J. Allen, Jr., Phys. Rev. Lett. 56, 2724 (1990).
41. T. Amand, J. Barrau, X. Marie, N. Lauret, B. Dareys, M. Brosseau, and F. Laruelle, Phys. Rev. B 47, 7155 (1993), and references therein.
42. H. H. Radamson, M. R. Sardela, Jr., O. Nur, M. Willander, B.E. Sernelius, W.-X. Ni, and G. V. Hansson, Appl. Phys. Lett. 64, 1842 (1994).