Analysis of the temperature-dependent quantum point contact conductance in relation to the metal-insulator transition in two dimensions

Journal of Physics Condensed Matter

Volumn 13, Issue 17, 2001, Pages 3831-3837

  Senz, V ^a   Heinzel, T ^a   Ihn, T ^a   Lindemann, S ^a   Held, R ^a   Ensslin, K ^a   Wegscheider, W ^b,c   Bichler, M ^c  

^a ETH ZURICH   (Switzerland)

^b WALTER SCHOTTKY INSTITUT   (Germany)

^c UNIVERSITY OF REGENSBURG   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

CARRIER CONCENTRATION; ELECTRIC CONDUCTANCE; ELECTRIC POTENTIAL; FERMI LEVEL; MATHEMATICAL MODELS; METAL INSULATOR TRANSITION; PERCOLATION (SOLID STATE); TRANSPORT PROPERTIES;

QUANTUM POINT CONTACTS (QPC);

POINT CONTACTS;

EID: 0035971631     PISSN: 09538984     EISSN: None     Source Type: Journal    
DOI: 10.1088/0953-8984/13/17/303     Document Type: Article

References (23)

1. van Wees B J, van Houten H, Beenakker C W J, Williamson J G, Kouwenhoven L P, van der Marel D and Foxon C T 1988 Phys. Rev. Lett. 60 848
2. Wharam D A, Thornton T J, Newbury R, Pepper M, Ahmed H, Frosl J E F, Hasko D G, Peacock D C, Ritchie D A and Jones G A C 1988 J. Phys. C: Solid State Phys. 21 L209
3. For a review, see van Houten H, Beenakker C W J and van Wees B J 1992 Quantum point contacts Semiconductors and Semimetals vol 35 (San Diego, CA: Academic) ch 2
4. Kravchenko S V, Kravchenko G V, Furneaux J E, Pudalov V M and D'Iorio M 1994 Phys. Rev. B 50 8039 For a recent theoretical discussion, see Altshuler B L, Maslov D L and Pudalov V M 2000 Preprint cond-mat/0003032
5. Kravchenko S V, Kravchenko G V, Furneaux J E, Pudalov V M and D'Iorio M 1994 Phys. Rev. B 50 8039 For a recent theoretical discussion, see Altshuler B L, Maslov D L and Pudalov V M 2000 Preprint cond-mat/0003032
6. The formation of such puddles has recently been verified experimentally by near-field photoluminescence: Eytan G, Yayon Y, Rappaport M, Shtrikman H and Bar-Joseph I 1998 Phys. Rev. Lett. 81 1666 as well as by local capacitance spectroscopy: Ilani S, Yacoby A, Mahalu D and Shtrikman H 2000 Phys. Rev. Lett. 84 3133
7. The formation of such puddles has recently been verified experimentally by near-field photoluminescence: Eytan G, Yayon Y, Rappaport M, Shtrikman H and Bar-Joseph I 1998 Phys. Rev. Lett. 81 1666 as well as by local capacitance spectroscopy: Ilani S, Yacoby A, Mahalu D and Shtrikman H 2000 Phys. Rev. Lett. 84 3133
8. Meir Y 1999 Phys. Rev. Lett. 83 3506 Meir Y 2000 Phys. Rev. B 61 16470
9. Meir Y 1999 Phys. Rev. Lett. 83 3506 Meir Y 2000 Phys. Rev. B 61 16470
10. Bagwell P F and Orlando T P 1989 Phys. Rev. B 40 1456
11. van Wees B J, Kouwenhoven L P, Willems EMM, Harmans C J P M, Mooij J E, van Houten H, Beenakker C W J, Williamson J G and Foxon C T 1989 Phys. Rev. B43 12431
12. Frost J E F, Simmons M Y, Pepper M, Churchill A C, Ritchie D A and Jones GAC 1993 J. Phys.: Contiens. Matter 5 L559
13. Dzurak A S, Smith C G, Martin-Moreno L, Pepper M, Ritchie D A, Jones G A C and Hasko D G 1993 J. Phys.: Condens. Matter S 8055
14. Taboryski R, Kristensen A, Sorensen C B and Lindelof P E 1995 Phys. Rev. B 51 2282
15. Yacohy A, Stormer H L, Wingreen N S, Pfeiffer L N, Baldwin K W and West K W 1996 Phys. Rev. Lett. 77 4612
16. Thomas K J, Nicholls J T, Simmons M Y, Pepper M, Mace D R and Ritchie D A 1996 Phys. Rev. Lett. 77 135
17. Thomas K J, Nicholls J T, Appleyard N J, Simmons M Y, Pepper M, Mace D R, Tribe W R and Ritchie D A 1998 Phys. Rev. B 58 4846 and references therein
18. Kristensen A, Bruus H, Hansen A E, Jensen J B, Lindelof P E, Marckmann C J, Nygård J, Sørensen C B, Beuscher F, Forchel A and Michel M 2000 Phys. Rev. B 62 10950
19. Held R, Vancura T, Heinzel T, Ensslin K, Holland M and Wegscheider W 1998 Appl. Phys. Lett. 73 262
20. Büttiker M 1990 Phys. Rev. B 41 R7906
21. For a list of references, see Senz V, Heinzel T, Ihn T, Ensslin K, Dehlinger G, Grützmacher D and Gennser U 2000 Phys. Rev. B 61 R5082
22. Ulreich S and Zwerger W 1998 Superlatt. Microstruct. 23 719
23. Ribeiro E, Jäggi R D, Heinzel T, Ensslin K, Medeiros-Ribeiro G and Petroff P M 1999 Phys. Rev. Lett. 82 996