Anomalous strain dependent effective masses in (111) Si nanowires

Applied Physics Letters

Volumn 91, Issue 8, 2007, Pages

  Peng, G W ^a   Feng, Y P ^a  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

Author keywords

[No Author keywords available]

Indexed keywords

ENERGY GAP; SILICON; TENSILE STRAIN; TRANSPORT PROPERTIES;

ENERGY SHIFT; FIRST-PRINCIPLES METHODS; TUNABILITY;

NANOWIRES;

EID: 34548222211     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2775045     Document Type: Article

References (29)

1. Y. Cui and C. M. Lieber, Science 291, 851 (2001).
2. J. Xiang, W. Lu, Y. Hu, H. Yan, and C. M. Lieber, Nature (London) 441, 489 (2006).
3. Y. Cui, Z. Zhong, D. Wang, W. U. Wang, and C. M. Lieber, Nano Lett. 3, 149 (2003).
4. Y. Huang, X. Duan, Y. Cui, L. J. Lauhon, K.-H. Kim, and C. M. Lieber, Science 294, 1313 (2001).
5. S. J. Tans, A. R. M. Verschueren, and C. Dekker, Nature (London) 393, 49 (1998).
6. R. Martel, T. Schmidt, H. R. Shea, T. Hertel, and Ph. Avouris, Appl. Phys. Lett. 73, 2447 (1998).
7. H. W. Ch. Postma, T. Teepen, Z. Yao, M. Grifoni, and C. Dekker, Science 293, 76 (2001).
8. R. Martel, V. Derycke, C. Lavoie, J. Appenzeller, K. K. Chan, J. Tersoff, and Ph. Avouris, Phys. Rev. Lett. 87, 256805 (2001).
9. V. Derycke, R. Martel, J. Appenzeller, and Ph. Avrouris, Nano Lett. 1, 453 (2001).
10. Y. H. Tang, Y. F. Zhang, H. Y. Peng, N. Wang, C. S. Lee, and S. T. Lee, Chem. Phys. Lett. 314, 16 (1999).
11. J. D. Holmes, K. P. Johnston, R. C. Doty, and B. A. Korgel, Science 287, 1471 (2000).
12. D. M. Lyons, K. M. Ryan, M. A. Morris, and J. D. Holmes, Nano Lett. 2, 811 (2002).
13. Y. Wu and P. Yang, J. Am. Chem. Soc. 123, 3165 (2001).
14. L. T. Canham, Appl. Phys. Lett. 57, 1046 (1990).
15. A. J. Read, R. J. Needs, K. J. Nash, L. T. Canham, P. D. J. Calcott, and A. Qteish, Phys. Rev. Lett. 69, 1232 (1992).
16. F. Buda, J. Kohanoff, and M. Parrinello, Phys. Rev. Lett. 69, 1272 (1992).
17. A. M. Saitta, F. Buda, G. Fiumara, and P. V. Giaquinta, Phys. Rev. B 53, 1446 (1996).
18. X. Zhao, C. M. Wei, L. Yang, and M. Y. Chou, Phys. Rev. Lett. 92, 236805 (2004).
19. G. Ledoux, O. Guillois, D. Porterat, C. Reynaud, F. Huisken, B. Kohn, and V. Paillard, Phys. Rev. B 62, 15942 (2000).
20. Y. Zheng, C. Rivas, R. Lake, K. Alam, T. B. Boykin, and G. Klimeck, IEEE Trans. Electron Devices 52, 1097 (2005).
21. T. Vo, A. J. Williamson, and G. Galli, Phys. Rev. B 74, 045116 (2006).
22. J. Li and A. J. Freeman, Phys. Rev. B 74, 075333 (2006).
23. G. Kresse and J. Furthmüller, Comput. Mater. Sci. 0927-0256 10.1016/0927-0256(96)00008-0 6, 15 (1996); G. Kresse and J. Furthmüller, Phys. Rev. B 54, 11169 (1996).
24. G. Kresse and J. Furthmüller, Comput. Mater. Sci. 0927-0256 10.1016/0927-0256(96)00008-0 6, 15 (1996); G. Kresse and J. Furthmüller, Phys. Rev. B 54, 11169 (1996).
25. D. Vanderbilt, Phys. Rev. B 41, R 7892 (1990).
26. H. J. Monkhorst and J. D. Pack, Phys. Rev. B 13, 5188 (1976).
27. D. Rideau, M. Ferailli, L. Ciampolini, M. Minondo, C. Tavernier, and H. Jaouen, Phys. Rev. B 74, 195208 (2006).
28. J. Yamauchi, arXiv:cond-mat/0701372;
29. The E-k dispersion relations are usually fitted with quadratic forms within the neighborhood of conduction band minima or valence band maximum. However, we notice that near the critical point of strain, the three lowest conduction bands with a single minimum change to those with double minima or vice versa, resulting in the E-k dispersion relations of these bands, are extremely nonparabolic near the valley minima. In such case, the E-k dispersion relations are fitted with eighth order polynomials.