Abstract
Polycrystalline textured films of deuterated glycine phosphite consisting of single-crystal blocks with lateral dimensions ∼(50–100) μm and a thickness d ∼ (1–5) μm have been grown by evaporation on NdGaO3(100) and α-Al2O3 substrates with preliminarily deposited interdigitated electrodes, as well as on Al substrates. The c* (Z) crystallographic axis in the blocks is normal to the film plane, and the a (X) axis and the polar axis b (Y) are oriented in the film plane. The temperature dependences of the capacitance of the structures measured with the interdigitated electrode system reveal a strong dielectric anomaly at the film transition to the ferroelectric state. The phase transition temperature T c depends on the degree of deuteration D of the glycine phosphite. The maximum value T c = 275 K obtained in the structures studied corresponds to a degree of deuteration of the glycine phosphite D ∼ 50%. The frequency behavior of the dielectric hysteresis loops in glycine phosphite films differs radically from that of the previously studied films of deuterated betaine phosphite, which evidences that polarization switching in these structures proceeds by different mechanisms. It has been that application of a dc bias to the electrodes changes the shape of the dielectric hysteresis loops and shifts them along the electric field axis. The shift of the loops depends on the sign, magnitude, and time of application of the bias. Possible mechanisms underlying the induced unipolarity are discussed.
Similar content being viewed by others
References
J. Albers, Ferroelectrics 78, 3 (1988).
G. Schaack, Ferroelectrics 104, 147 (1990).
E. V. Balashova and V. V. Lemanov, Ferroelectrics 285, 179 (2003).
E. V. Balashova, B. B. Krichevtsov, and V. V. Lemanov, J. Appl. Phys. 104, 126104 (2008).
E. V. Balashova, B. B. Krichevtsov, and V. V. Lemanov, Phys. Solid State 51(3), 560 (2009).
E. V. Balashova, B. B. Krichevtsov, and V. V. Lemanov, Integr. Ferroelectr. 106, 29 (2009).
E. V. Balashova and B. B. Krichevtsov, in Ferroelectrics: Material Aspects, Ed. by M. Lallart (InTech, Vienna, Austria, 2011). http://www.intechopen.com/articles/show/title/amino-acid-ferroelectric-thin-films
E. V. Balashova, B. B. Krichevtsov, and V. V. Lemanov, Phys. Solid State 53(6), 1216 (2011).
S. Dacko, Z. Czapla, J. Baran, and M. Drozd, Phys. Lett. A 223, 217 (1996).
M.-Th. Averbuch-Pouchot, Acta Crystallogr., Sect. C: Cryst. Struct. Commun. 49, 815 (1993).
S. Dacko and Z. Czapla, Ferroelectr. Lett. 27(1–2), 17 (2000).
E. V. Balashova, B. B. Krichevtsov, G. A. Pankova, and V. V. Lemanov, Ferroelectrics 433(1), 138 (2012).
V. V. Lemanov, S. G. Shul’man, V. K. Yarmarkin, S. N. Popov, and G. A. Pankova, Phys. Solid State 46(7), 1285 (2004).
A. K. Tagantsev, L. E. Cross, and J. Fousek, Domains in Ferroic Crystals and Thin Films (Springer-Verlag, New York, 2010).
V. N. Shut and I. F. Kushevich, Ferroelectrics 350, 57 (2007).
P. J. Lock, Appl. Phys. Lett. 19, 390 (1971).
E. T. Keve, K. L. Bye, P. W. Whipps, and A. D. Annis, Ferroelectrics 3, 39 (1971).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © E.V. Balashova, B.B. Krichevtsov, F.B. Svinarev, V.V. Lemanov, 2013, published in Fizika Tverdogo Tela, 2013, Vol. 55, No. 5, pp. 916–922.
Rights and permissions
About this article
Cite this article
Balashova, E.V., Krichevtsov, B.B., Svinarev, F.B. et al. Ferroelectric films of deuterated glycine phosphite: Structure and dielectric properties. Phys. Solid State 55, 995–1001 (2013). https://doi.org/10.1134/S106378341305003X
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S106378341305003X