Barkhausen effect in stepped motion of a plane domain boundary in gadolinium molybdate / Shur V.Ya., Rumyantsev E.L., Kuminov V.P., Subbotin A.L., Kozhevnikov V.L. // Physics of the Solid State. - 1999. - V. 41, l. 2. - P. 269-273.

ISSN:

10637834

Type:

Article

Abstract:

Barkhausen pulses generated in stepped motion of a single plane domain boundary (PDB) are investigated experimentally in single-crystalline wafers of the extrinsic ferroelastic ferroelectric gadolinium molybdate containing artificial pinning centers of the "field inhomogeneity" type near the edges of the sample. Two scenarios of the evolution of a PDB in interaction with "defects" are proposed on the basis of analyzing the shape of the pulses in a linearly increasing field: small changes of the pulse shape in a weak field and the generation of wedge domains in a strong field. The proposed mechanism of PDB motion due to the generation of steps near the edge of the sample and their longitudinal motion provides a means for explaining the experimentally observed linear field dependence of the PDB velocity and for determining the velocity of the steps. © 1999 American Institute of Physics.

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Affiliations	Inst. of Phys. and Appl. Mathematics, Ural State University, 620083 Ekaterinburg, Russian Federation
References	Chynoweth, A.G., (1959) J. Appl. Phys., 30, p. 280; Lines, M.E., Glass, A.M., (1977) Principles and Applications of Ferroelectrics and Related Materials, , Clarendon Press, Oxford, Mir, Moscow, 736 pp; Rudyak, V.M., (1986) Switching Processes in Nonlinear Crystals [in Russian], , Nauka, Moscow, 243 pp; Kamada, A., (1969) Phys. Rev. A, 30, p. 186; Borchardt, H.J., Bierstedt, P.E., (1967) J. Appl. Phys., 38, p. 2057; Alekseev, A.N., Zlokazov, M.V., Proklov, A.L., Tikhomirova, N.A., Shuvalov, L.A., (1984) Izv. Ross. Akad. Nauk, Ser. Fiz., 48, p. 1123; Bol'shakova, N.N., Komlyakova, N.S., Nekrasova, G.M., Polkhovskaya, T.M., Rudyak, V.M., (1981) Izv. Ross. Akad. Nauk, Ser. Fiz., 45, p. 1666; Shur, V.Ya., Gruverman, A.L., Kuminov, V.P., Tonkachyova, N.A., (1990) Ferroelectrics, 111, p. 197; Fatuzzo, E., Merz, W.J., (1967) Ferroelectricity, p. 241. , North-Holland, Amsterdam; Hayashi, M.J., (1972) J. Phys. Soc. Jpn., 33, p. 616; Shur, V.Ya., Gruverman, A.L., Rumyanstev, E.L., (1990) Ferroelectrics, 111, p. 123; Shur, V.Ya., (1996) Ferroelectric Thin Films: Synthesis and Basic Properties, 10, p. 153. , edited by S. A. Paz de Araujo, J. F. Scott, and G. W. Taylor (Gordon and Breach, New York), Chap. 6; Shur, V.Ya., Rumyantsev, E.L., (1997) Ferroelectrics, 191, p. 319; Drougard, M.E., Landauer, R., (1959) J. Appl. Phys., 30, p. 1663; Shur, V.Ya., Rumyantsev, E.L., Kozhevnikov, V.L., Nikolaeva, E.V., Shishkin, E.I., Appl. Phys., , in press; Salje, E.K.H., Buckley, A., Van Tendeloo, G., Ishibashi, Y., (1998) Am. Mineral., , in press; Roǐtburd, A.L., (1988) JETP Lett., 47, p. 171; Shur, V.Ya., Letuchev, V.V., Rumyantsev, E.L., Charikova, T.B., (1986) Fiz. Tverd. Tela (Leningrad), 28, p. 2829; (1986) Sov. Phys. Solid State, 28, p. 1583
Correspondence Address	Shur, V.Ya.; Inst. of Phys. and Appl. Mathematics, Ural State University, 620083 Ekaterinburg, Russian Federation; email: Vladimir.Shur@usu.ru
Language of Original Document	English
Abbreviated Source Title	Phys. Solid State
Source	Scopus