Spin wave and orbital ordering in the C-type antiferromagnetic phase of Nd $_{1-x}$ Sr $_{x}$ MnO $_{3}$

Kajimoto, Ryoichi ; Yoshizawa, Hideki*; Kawasaki, Ryuichi*; Noda, Kohei*; Kuwahara, Hideki*

The spin wave dispersion relation of the C-type antiferromagnetic structure in Nd $_{0.25}$ Sr $_{0.75}$ MnO $_{3}$ was determined by neutron scattering. The spin exchange interactions show a large anisotropy, which evidences the d $_{3z^2-r^2}$ orbital ordering along the axis. The exchange interaction along the direction is fairly large and similar to the value in the ferromagnetic metallic phase, suggesting there is finite hopping of charges along the orbital chains.

Language	:	English
Journal	:	Journal of the Physical Society of Japan
Volume	:	74
Number	:	1
Pages	:	p.502 - 503
Publication Year/Month	:	2005/01
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Paper URL	:	https://doi.org/10.1143/JPSJ.74.502
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Keywords	:	Nd $_{1-x}$ Sr $_{x}$ MnO $_{3}$ ; Spin Wave; Orbital Ordering
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Registration No. : A20040630
JAEA Abstracts No. : 330169
Paper Submission No. : 21571

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Spin wave and orbital ordering in the C-type antiferromagnetic phase of NdSrMnO

Spin wave and orbital ordering in the C-type antiferromagnetic phase of Nd $_{1-x}$ Sr $_{x}$ MnO $_{3}$