Ballistic Transport Phenomena in Nanostructures of Paraelectric Lead Telluride

• Authors: G. Grabecki
• Languages of publication: EN

Abstracts

EN

This is a review of our recent developments in the physics of lead telluride nanostructures. PbTe is a IV-VI narrow gap paraelectric semiconductor, characterized by the huge static dielectric constant ε >1000 at helium temperatures. We nanostructurized this material by means of e-beam lithography and wet chemical etching of modulation doped PbTe/Pb_{1-x}Eu_xTe quantum wells. Magnetoresistance measurements performed on the nano-structures revealed a number of magnetosize effects, confirming a ballistic motion of the carriers. The most important observation is that the conductance of narrow constrictions shows a precise zero-field quantization in 2e^2/h units, despite a significant amount of charged defects in the vicinity of the conducting channel. This unusual result is a consequence of a strong suppression of the Coulomb potential fluctuations in PbTe, an effect confirmed by numerical simulations. Furthermore, the orbital degeneracy of electron waveguide modes can be controlled by the width of PbTe/Pb_{1-x}Eu_xTe quantum wells, so that unusual sequences of plateau conductance can be observed. Finally, conductance measurements in a nonlinear regime allowed for an estimation of the energy spacing between the one-dimensional subbands.

Keywords

EN

72.80.Jc; 73.21.Hb; 73.23.Ad; 77.22.Ch

Discipline

• 72.80.Jc: Other crystalline inorganic semiconductors
• 73.23.Ad: Ballistic transport
• 77.22.Ch: Permittivity (dielectric function)(for low-permittivity dielectric films, see 77.55.Bh; for high-permittivity gate dielectric films, 77.55.D-)
• 73.21.Hb: Quantum wires

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2007
• Volume: 112
• Issue: 2
• Pages: 127-139

Dates

published

2007-08

received

2007-06-09

Contributors

author

G. Grabecki

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland

References

• 1. D. Loss, D.P. DiVincenzo, Phys. Rev. A, 57, 120, 1998
• 2. R. Hanson, L.H. Willems van Beveren, I.T. Vink, J.M. Elzerman, W.J.M. Naber, F.H.L. Koppens, L.P. Kouwenhoven, L.M.K. Vandersypen, Phys. Rev. Lett., 94, 196802, 2005
• 3. B.J. van Wees, H. van Houten, C.W.J. Beenakker, J.G. Williamson, L.P. Kouvenhoven, D. van der Marel, C.T. Foxon, Phys. Rev. Lett., 60, 848, 1988; D.A. Wharam, T.J. Thornton, R. Newbury, M. Pepper, H. Ahmed, J.E.F. Frost, D.G. Hasko, D.C. Peacock, D.A. Ritchie, G.A.C. Jones, J. Phys. C, 21, L209, 1988
• 4. S. Tarucha, D.G. Austing, T. Honda, R.J. van der Hage, L.P. Kouwenhoven, Phys. Rev. Lett., 77, 3613, 1996
• 5. G.D.J. Smit, S. Rogge, J. Caro, T.M. Klapwijk, Phys. Rev. B, 69, 035338, 2004
• 6. M.A. Topinka, B.J. LeRoy, R.M. Westervelt, S.E.J. Shaw, R. Fleischmann, E.J. Heller, K.D. Maranowski, A.C. Gossard, Nature (London), 410, 183, 2001
• 7. For review of PbTe properties, see e.g. J.I. Ravich, B.A. Efimova, I.A. Smirnov, Semiconducting Lead Compounds, Plenum, New York 1968; G. Nimtz, B. Schlicht, in: Springer Tracts in Modern Physics, Vol. 98, Ed. G. Hohler, Springer-Verlag, Berlin 1983, p. 1; Lead Chalcogenides Physics and Applications, Ed. D. Khokhlov, Taylor and Francis, London 2003
• 8. See, e.g., G. Bauer, W. Jantsch, E. Bangert, in: Advances in Solid State Physics, Ed. P. Grosse, Vol. XXIII, Vieweg, Wiesbaden 1983, p. 27
• 9. G. Grabecki, J. Wróbel, T. Dietl, K. Byczuk, E. Papis, E. Kamińska, A. Piotrowska, G. Springholz, M. Pinczolits, G. Bauer, Phys. Rev. B, 60, R5133, 1999
• 10. G. Grabecki, J. Wróbel, T. Dietl, E. Papis, E. Kamińska, A. Piotrowska, G. Springholz, G. Bauer, Physica E, 13, 649, 2002
• 11. G. Grabecki, J. Wróbel, T. Dietl, E. Papis, E. Kamińska, A. Piotrowska, A. Ratuszna, G. Springholz, G. Bauer, Physica E, 20, 236, 2004
• 12. G. Grabecki, J. Wróbel, T. Dietl, E. Janik, M. Aleszkiewicz, E. Papis, E. Kamińska, A. Piotrowska, G. Springholz, G. Bauer, Phys. Rev. B, 72, 125332, 2005
• 13. G. Grabecki, J. Wróbel, T. Dietl, E. Janik, M. Aleszkiewicz, E. Papis, E. Kamińska, A. Piotrowska, G. Springholz, G. Bauer, Physica E, 34, 560, 2006
• 14. G. Grabecki, J. Wróbel, P. Zagrajek, K. Fronc, M. Aleszkiewicz, T. Dietl, E. Papis, E. Kamińska, A. Piotrowska, G. Springholz, G. Bauer, Physica E, 35, 332, 2006
• 15. G. Grabecki, J. Appl. Phys., 101, 081722, 2007
• 16. W.D. Oliver, F. Yamaguchi, Y. Yamamoto, Phys. Rev. Lett., 88, 037901, 2002; D.S. Saraga, D. Loss, Phys. Rev. Lett., 90, 166803, 2003
• 17. M.J. Gilbert, J.P. Bird, Appl. Phys. Lett., 77, 1050, 2000
• 18. J. Wróbel, T. Dietl, A. Lusakowski, G. Grabecki, K. Fronc, R. Hey, K.H. Ploog, H. Shtrikman, Phys. Rev. Lett., 93, 246601, 2004; G. Grabecki, J. Wróbel, K. Fronc, M. Aleszkiewicz, M. Guziewicz, E. Papis, E. Kamińska, A. Piotrowska, H. Shtrikman, T. Dietl, Physica E, 21, 451, 2004
• 19. G. Springholz, in: Lead Chalcogenides, Physics and Applications, Ed. D. Khokhlov, Taylor and Francis, London 2003, p. 123
• 20. S. Yuan, N. Frank, G. Bauer, M. Kriechbaum, Phys. Rev. B, 50, 5286, 1994
• 21. A. Prinz, G. Brunthaler, Y. Ueta, G. Springholz, G. Bauer, G. Grabecki, T. Dietl, Phys. Rev. B, 59, 12983, 1999
• 22. G. Springholz, A.Y. Ueta, N. Frank, G. Bauer, Appl. Phys. Lett., 69, 2822, 1996
• 23. B. Tranta, H. Clemens, Lecture Notes in Physics, Vol. 301, Eds. G. Ferenczi, F. Beleznay, Springer-Verlag, Berlin 1988, p. 281
• 24. C.W.J. Beenakker, H. van Houten, in: Solid State Physics, Eds. H. Ehrenreich, D. Turnbull, Vol. 44, Academic, New York 1991, p. 1
• 25. C.W. Beenakker, H. van Houten, Phys. Rev. Lett., 63, 1857, 1989
• 26. B.L. Altshuler, B.I. Skhlovskii, Zh. Eksp. Teor. Fiz., 91, 220, 1986 [Sov. Phys. JETP, 64, 127, 1986]; P.A. Lee, A.D. Stone, H. Fukuyama, Phys. Rev. B, 35, 1039, 1987
• 27. K.J. Thomas, J.T. Nicholls, M.Y. Simmons, M. Pepper, D.R. Mace, D.A. Ritchie, Phys. Rev. Lett., 77, 135, 1996
• 28. A.G. Scherbakov, E.N. Bogachek, U. Landman, Phys. Rev. B, 53, 4054, 1996
• 29. N.K. Patel, J.T. Nicholls, L. Martin-Moreno, M. Pepper, J.E.F. Frost, D.A. Ritchie, G.A.C. Jones, Phys. Rev. B, 44, 10 973, 1991

Identifiers

DOI

10.12693/APhysPolA.112.127