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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2001, Volume 73, Issue 11, Pages 712–714
(Mi jetpl4423)
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This article is cited in 3 scientific papers (total in 3 papers)
CONDENSED MATTER
Spin-reorientation transition at isoelectronic substitution in double-layer manganites (La$_{1-z}$Pr$_z)_{1.2}$Sr$_{1.8}$Mn$_2$O$_7$
A. N. Vasilieva, T. N. Voloshoka, M. Apostub, R. Suryanarayananb, A. Revcolevschib a M. V. Lomonosov Moscow State University
b Université Paris-Sud, Orsay cedex
Abstract:
The transport, magnetic, and thermal properties of single crystal double-layer manganites of the Ruddlesden-Popper series (La$_{1-z}$Pr$_z)_{1.2}$Sr$_{1.8}$Mn$_2$O$_7$ ($z=0.1$ or $0.4$) were studied. The compounds exhibit the colossal negative magnetoresistance effect in the region of a transition into a ferromagnetic state. Upon the isoelectronic substitution of Pr$^{3+}$ for La$^{3+}$, the Curie temperature decreases, while the easy magnetization axis rotates from the $ab$ plane to the c axis. The observed effect is related to a change in the occupancy of $dx^2-y^2$ and $d3z^2-r^2$ orbitals as a result of stretching of the MnO$_6$ octahedra.
Received: 11.05.2001
Citation:
A. N. Vasiliev, T. N. Voloshok, M. Apostu, R. Suryanarayanan, A. Revcolevschi, “Spin-reorientation transition at isoelectronic substitution in double-layer manganites (La$_{1-z}$Pr$_z)_{1.2}$Sr$_{1.8}$Mn$_2$O$_7$”, Pis'ma v Zh. Èksper. Teoret. Fiz., 73:11 (2001), 712–714; JETP Letters, 73:11 (2001), 630–632
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https://www.mathnet.ru/eng/jetpl4423 https://www.mathnet.ru/eng/jetpl/v73/i11/p712
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