Phonon anomaly in Sm2BaNiO5

We present low-temperature far-infrared study of Sm2BaNiO5. The lowest-frequency phonon of Sm2BaNiO5 generated by the motion of the Sm3+ ion demonstrates anomalous behaviour at temperatures lower than the Néel temperature, T

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-11, Vol.1389 (1)
Main Authors: Klimin, S A, Popova, E A, Popova, M N
Format: Article
Language:English
Subjects:
Frequency shift
Low temperature
Order parameters
Phonons
Physics
Temperature
Online Access:Get full text
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Description
Summary:We present low-temperature far-infrared study of Sm2BaNiO5. The lowest-frequency phonon of Sm2BaNiO5 generated by the motion of the Sm3+ ion demonstrates anomalous behaviour at temperatures lower than the Néel temperature, T
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1389/1/012039