Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in Pr0.5Ca1.5MnO4

Songxue Chi; F. Ye; Pengcheng Dai; J. A. Fernandez-Baca; Q. Huang; J. W. Lynn; E. W. Plummer; R. Mathieu; Y. Kaneko; Y. Tokura

doi:10.1073/pnas.0704303104

Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in Pr_0.5Ca_1.5MnO₄

Songxue Chi, F. Ye, Pengcheng Dai, J. A. Fernandez-Baca, Q. Huang, J. W. Lynn, E. W. Plummer, R. Mathieu, Y. Kaneko, Y. Tokura

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Abstract

We use neutron scattering to study the lattice and magnetic structure of the layered half-doped manganite Pr_0.5Ca_1.5MnO ₄. On cooling from high temperature, the system first becomes charge-and orbital-ordered (CO/OO) near T_CO = 300 K and then develops checkerboard-like antiferromagnetic (AF) order below T_N = 130 K. At temperatures above T_N but below T_CO (T_N< T<T_CO), the appearance of short-range AF spin correlations suppresses the CO/OO-induced orthorhombic strain, contrasting with other half-doped manganites, where AF order has no observable effect on the lattice distortion. These results suggest that a strong spin-lattice coupling and the competition between AF exchange and CO/OO ordering ultimately determines the low-temperature properties of the system.

Original language	English
Pages (from-to)	10796-10801
Number of pages	6
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	104
Issue number	26
DOIs	https://doi.org/10.1073/pnas.0704303104
State	Published - Jun 26 2007

Keywords

CE-type AF order

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Chi, S., Ye, F., Dai, P., Fernandez-Baca, J. A., Huang, Q., Lynn, J. W., Plummer, E. W., Mathieu, R., Kaneko, Y., & Tokura, Y. (2007). Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in Pr_0.5Ca_1.5MnO₄. Proceedings of the National Academy of Sciences of the United States of America, 104(26), 10796-10801. https://doi.org/10.1073/pnas.0704303104

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title = "Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in Pr0.5Ca1.5MnO4",

abstract = "We use neutron scattering to study the lattice and magnetic structure of the layered half-doped manganite Pr0.5Ca1.5MnO 4. On cooling from high temperature, the system first becomes charge-and orbital-ordered (CO/OO) near TCO = 300 K and then develops checkerboard-like antiferromagnetic (AF) order below TN = 130 K. At temperatures above TN but below TCO (TN< TCO), the appearance of short-range AF spin correlations suppresses the CO/OO-induced orthorhombic strain, contrasting with other half-doped manganites, where AF order has no observable effect on the lattice distortion. These results suggest that a strong spin-lattice coupling and the competition between AF exchange and CO/OO ordering ultimately determines the low-temperature properties of the system.",

keywords = "CE-type AF order",

author = "Songxue Chi and F. Ye and Pengcheng Dai and Fernandez-Baca, {J. A.} and Q. Huang and Lynn, {J. W.} and Plummer, {E. W.} and R. Mathieu and Y. Kaneko and Y. Tokura",

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Chi, S, Ye, F, Dai, P, Fernandez-Baca, JA, Huang, Q, Lynn, JW, Plummer, EW, Mathieu, R, Kaneko, Y & Tokura, Y 2007, 'Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in Pr_0.5Ca_1.5MnO₄', Proceedings of the National Academy of Sciences of the United States of America, vol. 104, no. 26, pp. 10796-10801. https://doi.org/10.1073/pnas.0704303104

TY - JOUR

T1 - Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in Pr0.5Ca1.5MnO4

AU - Chi, Songxue

AU - Ye, F.

AU - Dai, Pengcheng

AU - Fernandez-Baca, J. A.

AU - Huang, Q.

AU - Lynn, J. W.

AU - Plummer, E. W.

AU - Mathieu, R.

AU - Kaneko, Y.

AU - Tokura, Y.

PY - 2007/6/26

Y1 - 2007/6/26

N2 - We use neutron scattering to study the lattice and magnetic structure of the layered half-doped manganite Pr0.5Ca1.5MnO 4. On cooling from high temperature, the system first becomes charge-and orbital-ordered (CO/OO) near TCO = 300 K and then develops checkerboard-like antiferromagnetic (AF) order below TN = 130 K. At temperatures above TN but below TCO (TN< TCO), the appearance of short-range AF spin correlations suppresses the CO/OO-induced orthorhombic strain, contrasting with other half-doped manganites, where AF order has no observable effect on the lattice distortion. These results suggest that a strong spin-lattice coupling and the competition between AF exchange and CO/OO ordering ultimately determines the low-temperature properties of the system.

AB - We use neutron scattering to study the lattice and magnetic structure of the layered half-doped manganite Pr0.5Ca1.5MnO 4. On cooling from high temperature, the system first becomes charge-and orbital-ordered (CO/OO) near TCO = 300 K and then develops checkerboard-like antiferromagnetic (AF) order below TN = 130 K. At temperatures above TN but below TCO (TN< TCO), the appearance of short-range AF spin correlations suppresses the CO/OO-induced orthorhombic strain, contrasting with other half-doped manganites, where AF order has no observable effect on the lattice distortion. These results suggest that a strong spin-lattice coupling and the competition between AF exchange and CO/OO ordering ultimately determines the low-temperature properties of the system.

KW - CE-type AF order

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U2 - 10.1073/pnas.0704303104

DO - 10.1073/pnas.0704303104

M3 - Article

AN - SCOPUS:34547409197

SN - 0027-8424

VL - 104

SP - 10796

EP - 10801

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

IS - 26

ER -

Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in Pr_0.5Ca_1.5MnO₄

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