Effects of structural disorder in lithium manganite and titanate oxides / Chukalkin Y.G., Teplykh A.E., Kellerman D.G., Gorshkov V.S. // Physics of the Solid State. - 2010. - V. 52, l. 5. - P. 1006-1009.

ISSN:

10637834

Type:

Article

Abstract:

The structures and magnetic states of stoichiometric lithium manganite LiMn2O4 and manganites and titanates Li1.33Mn1.67O4 and Li1.33Ti1.67O4 with excess lithium in both the initial (as-synthesized) state and after irradiation by fast (Eeff ≥ 1 MeV) neutrons with a fluence of 2 × 1020 cm-2 have been studied using neutron diffraction, X-ray diffraction, and magnetic methods. It has been established that the irradiation brings about a noticeable redistribution of manganese, titanium, and lithium cations over nonequivalent tetrahedral (8a) and octahedral (16d) positions of a spinel lattice. This structural disorder causes a radical change in the physical properties of the materials under study. The charge order existing in the initial LiMn2O4 sample is destroyed. There arises a strong intersublattice indirect exchange interaction Mn(8a)-O-Mn(16d). The disorder is accompanied by the antiferromagnet-ferrimagnet (LiMn2O4) and paramagnet-ferrimagnet (Li1.3Mn1.67O4) magnetic transitions. © 2010 Pleiades Publishing, Ltd.

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Index keywords:

нет данных

DOI:

10.1134/S1063783410050252

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-77952380608&doi=10.1134%2fS1063783410050252&partnerID=40&md5=2efbb0666757a612c31659818f50c5ff

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-77952380608&doi=10.1134%2fS1063783410050252&partnerID=40&md5=2efbb0666757a612c31659818f50c5ff
Affiliations	Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. Sof'i Kovalevskoǐ 18, Yekaterinburg 620219, Russian Federation; Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, ul. Pervomaǐskaya 91, Yekaterinburg 620041, Russian Federation; Joint Stock Venture Éliot, per. Severnyǐ 5, Yekaterinburg 620014, Russian Federation
References	Kellerman, D.G., Gorshkov, V.S., (2001) Élektrokhimiya, 37 (12), p. 1413. , [Russ. J. Electrochem. 37 (12), 1227 (2001)]; Thackeray, M.M., Mansuetto, M.F., Dees, D.W., Vissers, D.R., (1996) Mater. Res. Bull., 31, p. 133; Scharner, S., Wepner, W., Schmid-Beurmann, P., (1999) J. Electrochem. Soc., 146, p. 857; Leonidov, I.A., Leonidov, O.N., Perelyaeva, L.A., Samigullina, R.F., Kovyazina, S.A., Patrakeev, M.V., (2003) Fiz. Tverd. Tela (St. Petersburg), 45 (11), p. 2079. , [Phys. Solid State 45 (11), 2183 (2003)]; Goshchitskiǐ, B.N., Men', A.N., Sinitskiǐ, I.A., Chukalkin, Y.G., (1986) Structure and Magnetic Properties of Oxide Magnets Irradiated by Fast Neutrons, , Moscow: Nauka; http://www-llb.cea.fr/fullweb/winplotr/winplotr.htm; Rodriguez-Carvajal, J., Rousse, G., Masquelier, S., Hervieu, M., (1998) Phys. Rev. Lett., 81, p. 4660; Takada, T., Hayakawa, H., Akida, E., Izumi, F., Chakoumakos, B.S., (1997) J. Power Sources, 68, p. 613; Chukalkin, Y.G., Petrov, V.V., Shtirts, V.R., Goshchitskii, B.N., (1985) Phys. Status Solidi A, 92, p. 347; Krupička, S., (1973) Physik Der Ferrite Und Der Verwandten Magnetischen Oxide, , (Academia, Prague; Mir, Moscow, 1976), Vol. 1 [in German and in Russian]; Tomeno, I., Kasuya, Y., Tsunoda, Y., (2001) Phys. Rev. B: Condens. Matter, 64, p. 094422
Correspondence Address	Chukalkin, Y. G.; Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. Sof'i Kovalevskoǐ 18, Yekaterinburg 620219, Russian Federation; email: chukalkin@imp.uran.ru
Language of Original Document	English
Abbreviated Source Title	Phys. Solid State
Source	Scopus