Вышедшие номера
Home » Физика твердого тела » Год 2002, выпуск 11 » Статья стр. 1948
<<<>>>
Giant dielectric relaxation in SrTiO3--SrMg1/3Nb2/3O3 and SrTiO3--SrSc1/2Ta1/2O3 solid solutions
Lemanov V.V.1, Sotnikov A.V.1,2, Smirnova E.P.1, Weihnacht M.
1A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, St. Petersburg, Russia
2Leibniz Institute of Solid State and Materials Research Dresden, Dresden, Germany
Поступила в редакцию: 11 апреля 2002 г.
Выставление онлайн: 20 октября 2002 г.
PDF версия
Ceramic samples of (1-x) SrTiO3-x SrMg1/3Nb2/3O3 and (1-x) SrTiO3-x SrSc1/2Ta1/2O3 were prepared and their dielectric properties were studied at x=0.005-0.15 and 0.01-0.1, respectively, at frequencies 10 Hz-1 MHz and at temperatures 4.2-350 K. A giant dielectric relaxation was observed in the temperature range 150-300 K, and not so strong but well-developed relaxation was found in the temperature range 20-90 K. The activation energy U and the relaxation time tau0 were determined to be 0.21-0.3 eV and 10-11-10-12 s for the high-temperature relaxation and 0.01-0.02 eV and 10-8-10-10 s for the low-temperature relaxation. The additional local charge compensation of the heterovalent impurities Mg2+ and Nb5+ (or Sc3+ and Ta5+) by free charge carriers or the host ion vacancies is suggested as underlying physical mechanism of the relaxation phenomena. On the base of this mechanism, the Maxwell-Wagner model and the model of reorienting dipole centers Mg2+ (or Sc3+) associated with the oxygen vacancy are proposed to explain the high-temperature relaxation with some arguments in the favour of the latter model. The polaron-like model with the Nb5+-Ti3+ center is suggested as the origin of the low-temperature relaxation. The reasons of no ferroelectric phase transitions in the solid solutions under study are also discussed.
  1. K.A. Muller, H. Burkhard. Phys. Rev. B19, 3593 (1979)
  2. H. Uwe, T. Sakudo. Phys. Rev. B13, 271 (1976)
  3. V.V. Lemanov, Fiz. Tverdogo Tela (St.Petersburg) 39, 1645 (1997). [Phys. Solid State 39, 1468 (1997)]
  4. V.V. Lemanov. Ferroelectrics 226, 133 (1999)
  5. J.G. Bednorz, K.A. Muller. Phys. Rev. Lett. 52, 2289 (1984)
  6. V.V. Lemanov, E.P. Smirnova, E.A. Tarakanov, P.P. Syrnikov, Phys. Rev. B54, 3151 (1996)
  7. V.V. Lemanov, E.P. Smirnova, E.A. Tarakanov. Fiz. Tverdogo Tela (St.Petersburg) 39, 714 (1997). [Phys. Solid State 39, 628 (1999)]
  8. M.E. Guzhva, V.V. Lemanov, P.A. Markovin, T.A. Shaplygina. Ferroelectrics 218, 93 (1998)
  9. V.V. Lemanov, A.V. Sotnikov, E.P. Smirnova, M. Weihnacht, W. Hassler. Fiz. Tverdogo Tela (St.Petersburg) 41, 1091 (1999). [Phys. Solid State 41, 994 (1999)]
  10. Chen Ang, Zhi Yu, P.M. Vilarinho, J.L. Baptista. Phys. Rev. 57, 7403 (1998)
  11. G.I. Skanavi, E.N. Matveeva. ZhETF 30, 6, 1047 (1956). [Sov. Phys. JETP 3, 905 (1957)]
  12. G.I. Skanavi, I.M. Ksendzov, V.A. Trigubenko, V.G. Prokhvatilov. ZhETF 33, 2, 321 (1957). [Sov. Phys. JETP 6, 250 (1958)]
  13. Chen Ang, J.F. Scott, Zhi Yu., H. Ledbetter, J.L. Baptista. Phys. Rev. B59, 6661 (1999)
  14. Chen Ang, Zhi Yu, J. Hemberger, P. Lunkenheimer, A. Loidl. Phys. Rev. B59, 6665 (1999)
  15. Chen Ang, Zhi Yu, P. Lunkenheimer, J. Hemberger, A. Loidl. Phys. Rev. B59, 6670 (1999)
  16. Chen Ang, Zhi Yu, L.E. Cross. Phys. Rev. B62, 228 (2000)
  17. T.Y. Tien, L.E. Cross. Jpn. J. Appl. Phys. 6, 459 (1967)
  18. J. Bouwma, K.J. De Vries, A.J. Burggraaf. Phys. Stat. Sol. A35, 281 (1976)
  19. Ang Chen, Yu Zhi. J. Appl. Phys. 71, 6025 (1992)
  20. E. Iguchi, K.J. Lee. J. Mater. Sci. 28, 5809 (1993)
  21. Zhi Yu, Chen Ang, L.E. Cross. Appl. Phys. Lett. 74, 3044 (1999)
  22. D.W. Johnson, L.E. Cross, A. Hummel. J. Appl. Phys. 41, 2828 (1970)
  23. Chen Ang, J.R. Jurado, Zhi Yu, M.T. Colomer, J.R. Frado, J.L. Baptista. Phys. Rev. B57, 11 858 (1998)
  24. Chen Ang, Zhi Yu, Zhi Jing, P. Lukenheimer, A. Loidl. Phys. Rev. B61, 3922 (2000)
  25. V.V. Lemanov, E.P. Smirnova, A.V. Sotnikov, M. Weihnacht. Appl. Phys. Lett. 77, 4205 (2000)
  26. F.S. Galasso. Structure, Properties and Preparation of Perovskite-type Compounds. Pergamon Press, Oxford (1969)
  27. Powder Diffraction File, Inorganic Phases, 1989 (International Center for Diffraction Data, 1601 Park Lane, Swarthmore, PA 19081-238)
  28. G.A. Samara, L.A. Boatner. Phys. Rev. B61, 3889 (2000)
  29. V.A. Trepakov, M.E. Savinov, S. Kapphan, V.S. Vikhnin, L. Jastrabik, L.A. Boatner. Ferroelectrics 239, 305 (2000)
  30. M. Itoh, R. Wang. Appl. Phys. Lett. 76, 221 (2000)
  31. H. Neumann, G. Arlt. Ferroelectrics 69, 179 (1986)
  32. H.P.R. Frederikse, W.R. Hosler. Phys. Rev. 161, 822 (1967)
  33. A. Seuter. Philips. Res. Repts. Suppl. 3, 1 (1974)
  34. G. Arlt, H. Neumann. Ferroelectrics 87, 109 (1988)
  35. I. Sakaguchi, H. Honeda, S. Hishita, F. Watanabe, J. Tanaka. Nucl. Instr. and Meth. B94, 411 (1994)
  36. V.S. Vikhnin, A.S. Polkovnikov, H.J. Reyher, B. Faust, S. Kapphan. J. Korean Phys. Soc. 32, S486 (1998)
  37. L.S. Sochava, V.E. Bursian, A.G. Razdobarin. Fiz. Tverd. Tela (St.Petersburg) 42, 1595 (2000). [Phys. Solid State 42, 1640 (2000)]
  38. Ch. Kittel. Introduction to Solid State Physics. John Wiley \& Sons, Inc., N.Y.--London--Sydney--Toronto
  39. M. Fisher, A. Lahmar, M. Maglione, A. San Miguel, J.P. Itie, A. Polian, F. Baudelet. Phys. Rev. B49, 12 451 (1994)
  40. L.A.K. Dominik, R.K. MacCrone. Phys. Rev. 163, 756 (1967)
  41. V.V. Lemanov, V.A. Trepakov, P.P. Syrnikov, M. Savinov, L. Jastrabik. Fiz. Tverd. Tela (St.Petersburg) 39, 1838 (1997). [Phys. Solid State 39, 1642 (1997)]
  42. V.V. Lemanov, A.V. Sotnikov, E.P. Smirnova, M. Weihnacht, R. Kunze. Solid State Commun. 110, 611 (1999)

Подсчитывается количество просмотров абстрактов ("html" на диаграммах) и полных версий статей ("pdf"). Просмотры с одинаковых IP-адресов засчитываются, если происходят с интервалом не менее 2-х часов.

Дата начала обработки статистических данных - 27 января 2016 г.

Учредители

Издатель

© 2024 Физико-технический институт им. А.Ф. Иоффе Российской академии наук
Powered by webapplicationthemes.com - High quality HTML Theme