Azhniuk Yu.M., Gomonnai A.V., Vysochanskii Yu.M., Prits I.P., Romanova L.G., Solomon A.M.
Room-temperature Raman measurements of the Sn2P2S6 microcrystals are reported. The red shift, and broadening of the intense high-frequency first-order bands around 380 cm–1 and in the range 550–600 cm–1 with the microcrystal size decrease are observed. The possible mechanisms (phonon confinement, surface phonon scattering), responsible for these effects, are discussed.
Keywords: microcrystals, Raman scattering, phonon confinement, surface phonons.
doi 10.3116/16091833/2/4/182/2001
1. Vysochanskii YuM and Slivka VYu, 1992.Uspekhi Fiz. Nauk 162: 139.
2. Ishikawa K, Yoshikawa K and Okada N, 1988. Phys. Rev. B 37: 5852.
doi:10.1103/PhysRevB.37.5852
http://dx.doi.org/10.1103/PhysRevB.37.5852
3. Zhong WI, Jiang BI, Zhang PL, Ma JM, Cheng HM, Yang ZH and Li LX,
1993. J. Phys.: Condens. Matter 5: 2619.
doi:10.1088/0953-8984/5/16/018
http://dx.doi.org/10.1088/0953-8984/5/16/018
4. Colla EV, Fokin AV, Koroleva EYu, Kumzerov YuA, Vakhrushev SV and
Savenko VN, Nanostructured Materials 12: 963.
5. Uchino K, Sadanaga E and Hirose T, 1989. J. Amer. Ceram. Soc. 72:
1555.
doi:10.1111/j.1151-2916.1989.tb07706.x
http://dx.doi.org/10.1111/j.1151-2916.1989.tb07706.x
6. Zhong WL, Wang YG, Zhang PL and Qu WD, 1994. Phys. Rev. B 50: 698.
doi:10.1103/PhysRevB.50.698
http://dx.doi.org/10.1103/PhysRevB.50.698
7. Gaponenko SV, 1996. Fiz. Tekhn. Poluprovodn. 30: 577.
8. Bourdon X and Cajipe VB, 1998. J. Sol. St. Chem. 141: 290.
doi:10.1006/jssc.1998.7919
http://dx.doi.org/10.1006/jssc.1998.7919
9. Dittmar G and Schaefer H, 1974. Z. Naturforsch. B. 29: 312.
10. Voroshilov YuV, Vysochanskii YuM, Grabar AA, Potori MV, Prits IP,
Rizak VM, Sejkovskaja.LA, Slivka VYu and Vatsenko AV, 1990. Ukr. Fiz. Zh.
35: 71.
11. Vysochanskii YuM, Slivka VYu, Voroshilov YuV, Gurzan MI and Chepur
DV, 1979. Fiz. Tverd. Tela. 21: 2402.
12. Gomonnai AV, Vysochanskii YuM, Grabar AA and Slivka VYu, 1981.
Fiz. Tverd. Tela. 23: 3623.
13. Gomonnai AV, Vysochanskii YuM and Slivka VYu, 1982. Fiz. Tverd.
Tela. 24: 1068.
14. Hayashi S, 1985. Sol. State Commun. 56: 375.
doi:10.1016/0038-1098(85)90406-5
http://dx.doi.org/10.1016/0038-1098(85)90406-5
15. Fauchet PM and Campbell IH, 1986. Sol. State Commun. 58: 739.
doi:10.1016/0038-1098(86)90513-2
http://dx.doi.org/10.1016/0038-1098(86)90513-2
16. Roy A and Sood A.K, 1996. Phys. Rev. B 53: 12127
doi:10.1103/PhysRevB.53.12127
http://dx.doi.org/10.1103/PhysRevB.53.12127