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Journal Articles

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*

Journal of the Physical Society of Japan, 74(1), p.502 - 503, 2005/01

https://doi.org/10.1143/JPSJ.74.502
 Times Cited Count：2 Percentile：19.48(Physics, Multidisciplinary)

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 $$c$$ axis. The exchange interaction along the $$c$$ 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.

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