Semiconductor Physics, Quantum Electronics and Optoelectronics, 20 (1) P. 069-073 (2017).
DOI: https://doi.org/10.15407/spqeo20.01.069


References

1.    Ovshinsky S.R. Reversible electrical switching phenomena in disordered structures. Phys. Rev. Lett. 1968. 21. P. 1450.
https://doi.org/10.1103/PhysRevLett.21.1450
 
2.    Wuttig M. Phase change materials: Towards a universal memory? Nat. Mater. 2008. 4. P. 265–266.
https://doi.org/10.1038/nmat1359
 
3.    Pauling L. The Nature of the Chemical Bond, 3-rd ed. Cornell University Press, 1970.
 
4.    Krebs H. Der Einfluß homöopolarer Bindungsanteile auf die Struktur anorganischer Salze. III Verbindungen der Halbmetalle. Zeitschrift für Elektrochemie, Berichte der Bunsengesellschaft für Phys. Chemie. 1957. 61. P. 925–934.
 
5.    Lucovsky G. and White R.M. Effects of resonance bonding on the properties of crystalline and amorphous semiconductors. Phys. Rev. B. 1973. 8, No. 2. P. 660–667.
https://doi.org/10.1103/PhysRevB.8.660
 
6.    Littlewood P.B. The crystal structure of IV-VI compounds. I. Classification and description. J. Phys. C Solid State Phys. 1980. 13. P. 4855.
https://doi.org/10.1088/0022-3719/13/26/009
 
7.    Shportko K., Kremers S., Woda M., Lencer D., Robertson J., and Wuttig M. Resonant bonding in crystalline phase-change materials. Nat. Mater. 2008. 7, No. 8. P. 653–658.
https://doi.org/10.1038/nmat2226
 
8.    Zalden P. et al. Specific heat of (GeTe)x (Sb2Te3)1-x phase-change materials: The impact of disorder and anharmonicity. Chem. Mater. 2014. 26, No. 7. P. 2307.
https://doi.org/10.1021/cm500175j
 
9.    Siegrist M., Jost T., Volker P., Woda H., Merkelbach M., Schlockermann P., Wuttig C. Disorder-induced localization in crystalline phase-change materials. Nat. Mater. 2011. 10. P. 202–208.
https://doi.org/10.1038/nmat2934
 
10.    Kim P.M., Garland C.C., Abad J.W., Raccah H. Modeling the optical dielectric function of semiconductors: Extension of the critical-point parabolic-band approximation. Phys. Rev. B. 1992. 45, No. 20. P. 11749–11767.
https://doi.org/10.1103/PhysRevB.45.11749
 
11.    Jellison G.E., Jr. Spectroscopic ellipsometry data analysis: measured versus calculated quantities. Thin Solid Films. 1998. 313–314. P. 33–39.
https://doi.org/10.1016/S0040-6090(97)00765-7
 
12.    Shimakawa K., Střižik L., Wagner T., and Frumar M. Penn gap rule in phase-change memory materials: No clear evidence for resonance bonds. APL Mater. 2015. 3, No. 4. P. 41801.
https://doi.org/10.1063/1.4907251
 
13.    Van Dyke J.P. Matrix elements in interband optical transitions. Phys. Rev. B. 1972. 5, No. 4. P. 1489–1493.
https://doi.org/10.1103/PhysRevB.5.1489
 
14.    Bransden C.J., Joachain B.H. Quantum Mechanics, 2nd ed. Harlow: Pearson Education Limited, 1999.
 
15.    Wełnic W., Botti S., Reining L., and Wuttig M. Origin of the optical contrast in phase-change materials. Phys. Rev. Lett. 2007. 98, No. 23. P. 236403.
https://doi.org/10.1103/PhysRevLett.98.236403
 
16.    Shportko K., Venger E. Influence of the local structure in phase-change materials on their dielectric permittivity. Nanoscale Res. Lett. 2015. 10, No. 33.
https://doi.org/10.1186/s11671-015-0735-4
 
17.    Matsunaga T. et al. Phase-change materials: Vibrational softening upon crystallization and its impact on thermal properties. Adv. Funct. Mater. 2011. 21, No. 12. P. 2232–2239.
https://doi.org/10.1002/adfm.201002274
 
18.    Lencer D., Salinga M., Grabowski B., Hickel T., Neugebauer J., and Wuttig M. A map for phase-change materials. Nat. Mater. 2008. 7, No. 12. P. 972–977.
https://doi.org/10.1038/nmat2330
 
19.    Brüesch P. Phonons: Theory and Experiments III. vol. 66. Berlin, Heidelberg: Springer, 1987.
https://doi.org/10.1007/978-3-642-52271-0
 
20.    Giannozzi P., Baroni P. Vibrational and dielectric properties of C60 from density-functional perturbation theory. J. Chem. Phys. 1994. 100, No. 11. P. 8537–8539.
https://doi.org/10.1063/1.466753
 
21.    Gonze X. and Lee C. Dynamical matrices, Born effective charges, dielectric permittivity tensors, and interatomic force constants from density-functional perturbation theory. Phys. Rev. B. 1997. 55, No. 16. P. 10355–10368.
https://doi.org/10.1103/PhysRevB.55.10355
 
22.    Chen I. and Zallen R. Optical phonons and dynamic charge in trigonal Se and Te. Phys. Rev. 1968. 173, No. 3. P. 833–843.
https://doi.org/10.1103/PhysRev.173.833