Ukrainian Journal of Physical Optics

Number 3, Volume 7, 2006

Raman Scattering in Ionic Conducting Li2B4O7 Crystals at High Temperatures
¹Moiseyenko V.N., ¹Dergachov M.P., ²Burak Ya.V.

¹Physics Department, Dniepropetrovsk National University, 13 Naukova St., 49050 Dniepropetrovsk, Ukraine
²Institute of Physical Optics, 23 Dragomanov St., 79005 Lviv, Ukraine

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Raman spectra of isotopically substituted Li2B4O7 (LB4) crystals have been measured within a wide temperature region (290–1040 K). Temperature dependences of the parameters of vibrational modes with participation of lithium ion have been analyzed. The character of temperature dependences of the frequency and the damping constant of these modes testifies disordering of lithium sublattice and a possibility of order-disorder phase transition in the vicinity of 750 K. Resonant and anharmonic interaction effects have been found to determine spectral intensity distribution in the Raman spectra of LB4 crystals at high temperatures. The possibility of appearance of lithium plasmon vibration in the Raman spectra has been discussed.

Key words: Raman scattering, phase transitions, ionic conductor

PACS: 78.30.-j, 63.20.–e, 64.60.Cn

doi 10.3116/16091833/7/3/100/2006

1. Maeda M, Tachi H, Honda K and Suzuki I, 1994. Japan. J. Appl. Phys. 33: 1965.
        doi:10.1143/JJAP.33.1965 http://dx.doi.org/10.1143/JJAP.33.1965
2. Jung H-R, Jin B-M, Cha J-W and Kim J-N, 1997. Mat.Lett. 30: 41.
        doi:10.1016/S0167-577X(96)00168-1 http://dx.doi.org/10.1016/S0167-577X(96)00168-1
3. Petrov V, Rotermund AF, Noack F, Ringling J, Kittelmann O and Komatsu R, 1999. IEEE J. Sel. Top. Quant. Elect. 5: 1532.
        doi:10.1109/2944.814995 http://dx.doi.org/10.1109/2944.814995
4. Sugarawa T, Komatsu R and Uda S, 1999. Opt. Mat. 13: 225.
        doi:10.1016/S0925-3467(98)00087-1 http://dx.doi.org/10.1016/S0925-3467(98)00087-1
5. Hunda BM, Puga PP, Solomon AM and Holovey VM, 2000. Semicond. Phys. Quant. Electr. Optoelect. 3: 227.
6. Aliev AE, Burak YaV and Lyseiko IT, 1990. Izv. AN USSR, Neorg. Mat. 26: 1991.
7. Bilanich VS, Baisa ND, Rizak VM, Rizak IM and Holovey VM, 2003. Russian Phys.: Sol. State. 45: 80.
8. Aliev AE, Kholmanov IN and Khabibullaev PK, 1999. Sol. State Ion. 118: 111.
        doi:10.1016/S0167-2738(98)00430-5 http://dx.doi.org/10.1016/S0167-2738(98)00430-5
9. Vdovin AV, Moiseyenko VN and Burak YaV, 2003. Ukr. J. Phys. Opt. 4: 38.
        doi:10.3116/16091833/4/1/38/2003 http://dx.doi.org/10.3116/16091833/4/1/38/2003
10. Zhigadlo ND, Zhang M and Salje EKH, 2001. J. Phys.: Condens. Matt. 13: 6551.
        doi:10.1088/0953-8984/13/30/311 http://dx.doi.org/10.1088/0953-8984/13/30/311
11. Kasprowicz D, Kroupa J, Majchrowski A, Michalski E, Drozdowski M and Zmija J, 2003. Cryst. Res. Tech. 38: 374.
        doi:10.1002/crat.200310046 http://dx.doi.org/10.1002/crat.200310046
12. Moiseyenko VN, Dergachov MP and Burak YaV, 2005. Ukr. J. Phys. Opt. 6: 45.
        doi:10.3116/16091833/6/2/45/2005 http://dx.doi.org/10.3116/16091833/6/2/45/2005
13. Furusawa S, Tange S, Ishibashi Y and Miwa KJ, 1990. Phys. Soc. Jap. 59: 1825.
        doi:10.1143/JPSJ.59.1825 http://dx.doi.org/10.1143/JPSJ.59.1825
14. Burak YaV, Tratsh IB, Adamiv VT and Teslyuk IM, 2002. Ukr. J. Phys. 47: 923.
15. Vdovin AV, Moiseyenko VN, Gorelik VS and Burak YaV, 2001. Russian Phys.: Sol. State. 43: 1584.
16. Elalaoui AE, Maillard A and Fontana MD, 2005. J. Phys.: Condens. Matt. 17: 7441.
        doi:10.1088/0953-8984/17/46/027 http://dx.doi.org/10.1088/0953-8984/17/46/027
17. Korshunov AV and Bondarev AF, 1963. Opt. Spektr. 15: 182.
18. Comins GS and Levanyuk AP, 1990. Light scattering at the phase transitions points. Nauka: Moscow.
19. Krivorotov VF, Fershtat LN, Khabibullaev PK and Sharipov KhT, 1990. Izv AN Neorg. Mater. 26: 2397-2401.
20. Moiseyenko VN, Vdovin AV and Dergachov MP, 2000. Proc. SPIE 4069: 36.
        doi:10.1117/12.378133 http://dx.doi.org/10.1117/12.378133
21. Moiseyenko VN Vdovin AV, Gorelik VS and Burak YaV, 1998. Short Notes on Physics FIAN 10: 30.
22. Gorelik VS, 1978. in Modern problems of Raman light spectroscopy. Nauka: Moscow.

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