Ukrainian Journal of Physical Optics 

Number  1, Volume  2, March  2001

Home page
 

Other articles 
in this issue
Raman scattering and optical absorption edge studies of CuInP2S6 and CuInP2(S0.95Se0.05)6 layered ferrielectrics 
Studenyak I.P. , Mitrovcij V.V., Stefanovich V.A., Kovacs Gy.Sh., Mykajlo O.A., Gurzan M.I., Vysochanski Yu.M.

Institute of Solid State Physics and Chemistry, Uzhgorod National University, 46 Pidhirna St., Uzhgorod 88000, Ukraine

download full version

Raman scattering spectra at room temperatrure and optical absorption edge spectra in the temperatrure range 77-373 K in CuInÐ2(S0.95Se0.05)6 crystal are investigated. The comparative analyzis of the obtained spectra with the similar spectra for pure CuInÐ2S6 crystal is performed. The anionic substitution of S atoms by Se results in the red shift of the Urbach absorption edge, its additional smearing and sharp decrease of the ferrielectric phase transition.

Key words: ferrielectric; phase transition; Raman scattering; Urbach absorption edge

doi 10.3116/16091833/2/1/26/2001
References
1. Maisonneuve V, Evain M, Payen C, Cajipe VB, Molinie P, 1995. Journal of Alloys and Compounds 218: 157-164.
        doi:10.1016/0925-8388(94)01416-7 http://dx.doi.org/10.1016/0925-8388(94)01416-7
2. Vysochanskii YuM, Stephanovich VA, Molnar AA, Cajipe VB, Bourdon X, 1998. Phys. Rev. B 58: 9119-9124.
        doi:10.1103/PhysRevB.58.9119 http://dx.doi.org/10.1103/PhysRevB.58.9119
3. Vysochanskii YuM, Kovacs GySh, Mytrovcij VV, Mykailo OA, Studenyak IP, 1998. Uzhhorod University Scentific Herald Series Physics 3: 123-129.
4. Vysochanskii YuM, Slivka VYu, 1994. Segneto-elektriki semeystva Sn2P2S6. Lviv 264.
5. Kurik MV, 1971. Phys. Stat. Sol. (a) 8: 9 – 30.
6. Sumi H, Sumi A, 1987. J. Phys. Soc. Japan. 56: 2211-2220.
        doi:10.1143/JPSJ.56.2211 http://dx.doi.org/10.1143/JPSJ.56.2211
7. Yang Z, Homewood KP, Finney MS, Harry MA, Reeson K, 1995. J. Appl. Phys. 78: 1958-1963.
        doi:10.1063/1.360167 http://dx.doi.org/10.1063/1.360167
8. Beaudoin M, DeVries GAJ, Johnson SR, Laman H, Tiedje T, 1997. Appl.Phys.Lett. 70: 3540-3546.
        doi:10.1063/1.119226 http://dx.doi.org/10.1063/1.119226
Home | Instructions to Authors | Editorial Board | Meetings & Exhibitions