Polarization-dependent resonant-x-ray diffraction in charge- and orbital-ordering phase of Nd1/2Sr1/2MnO3

K. Nakamura; T. Arima; A. Nakazawa; Y. Wakabayashi; Y. Murakami

doi:10.1103/PhysRevB.60.2425

Polarization-dependent resonant-x-ray diffraction in charge- and orbital-ordering phase of Nd_1/2Sr_1/2MnO₃

K. Nakamura, T. Arima, A. Nakazawa, Y. Wakabayashi, Y. Murakami

Research output: Contribution to journal › Article › peer-review

98 Citations (Scopus)

Abstract

A study of resonant-x-ray scattering in a charge-ordered perovskite manganese oxide Nd_1/2Sr_1/2MnO₃ was performed. Dipole-resonant superlattice reflections originating from the orderings of the charge and orbital with Q_charge = (0,1,0) and Q_orbital = (0,1/2,0) in the Pbnmsetting were observed. Sudden change in the intensity of the superlattice scattering at the transition temperature indicated a strong first-order phase transition. Characteristic dependence on the x-ray polarization was observed not only for orbital-order superlattice scattering but also for charge-order scattering. It should be closely related to the orbital-ordering type (d_3x²-r²/d_3y²-r²)or (d_x²-z²/d_y²-z²).

Original language	English
Pages (from-to)	2425-2428
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	60
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.60.2425
Publication status	Published - 1999 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Polarization-dependent resonant-x-ray diffraction in charge- and orbital-ordering phase of Nd1/2Sr1/2MnO3",

abstract = "A study of resonant-x-ray scattering in a charge-ordered perovskite manganese oxide Nd1/2Sr1/2MnO3 was performed. Dipole-resonant superlattice reflections originating from the orderings of the charge and orbital with Qcharge = (0,1,0) and Qorbital = (0,1/2,0) in the Pbnmsetting were observed. Sudden change in the intensity of the superlattice scattering at the transition temperature indicated a strong first-order phase transition. Characteristic dependence on the x-ray polarization was observed not only for orbital-order superlattice scattering but also for charge-order scattering. It should be closely related to the orbital-ordering type (d3x2-r2/d3y2-r2)or (dx2-z2/dy2-z2).",

author = "K. Nakamura and T. Arima and A. Nakazawa and Y. Wakabayashi and Y. Murakami",

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T1 - Polarization-dependent resonant-x-ray diffraction in charge- and orbital-ordering phase of Nd1/2Sr1/2MnO3

AU - Nakamura, K.

AU - Arima, T.

AU - Nakazawa, A.

AU - Wakabayashi, Y.

AU - Murakami, Y.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - A study of resonant-x-ray scattering in a charge-ordered perovskite manganese oxide Nd1/2Sr1/2MnO3 was performed. Dipole-resonant superlattice reflections originating from the orderings of the charge and orbital with Qcharge = (0,1,0) and Qorbital = (0,1/2,0) in the Pbnmsetting were observed. Sudden change in the intensity of the superlattice scattering at the transition temperature indicated a strong first-order phase transition. Characteristic dependence on the x-ray polarization was observed not only for orbital-order superlattice scattering but also for charge-order scattering. It should be closely related to the orbital-ordering type (d3x2-r2/d3y2-r2)or (dx2-z2/dy2-z2).

AB - A study of resonant-x-ray scattering in a charge-ordered perovskite manganese oxide Nd1/2Sr1/2MnO3 was performed. Dipole-resonant superlattice reflections originating from the orderings of the charge and orbital with Qcharge = (0,1,0) and Qorbital = (0,1/2,0) in the Pbnmsetting were observed. Sudden change in the intensity of the superlattice scattering at the transition temperature indicated a strong first-order phase transition. Characteristic dependence on the x-ray polarization was observed not only for orbital-order superlattice scattering but also for charge-order scattering. It should be closely related to the orbital-ordering type (d3x2-r2/d3y2-r2)or (dx2-z2/dy2-z2).

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Polarization-dependent resonant-x-ray diffraction in charge- and orbital-ordering phase of Nd_1/2Sr_1/2MnO₃

Abstract

ASJC Scopus subject areas

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