Ultrasonic investigation of Nd sub(0.5)Sr sub(0.5)MnO sub(3)

Results of ultrasonic studies of the magnetoresistive compound Nd sub(0.5)Sr sub(0.5)MnO sub(3) in a broad temperature range (1.5-180K) are reported. With decreasing temperature the pronounced acoustic mode hardening was observed at about T sub(CO)=145K. The change of sound velocity around T sub(CO)...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2001-05, Vol.226, p.882-883
Main Authors: Zvyagin, S, Schwenk, H, Luthi, B, Kamenev, K V, Paul, D Mc K, Balakrishnan, G, Kamenev, V I, Pashkevich, Yu G
Format: Article
Language:English
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Summary:Results of ultrasonic studies of the magnetoresistive compound Nd sub(0.5)Sr sub(0.5)MnO sub(3) in a broad temperature range (1.5-180K) are reported. With decreasing temperature the pronounced acoustic mode hardening was observed at about T sub(CO)=145K. The change of sound velocity around T sub(CO) was explained by a strong coupling between the acoustic phonons and the charge-ordered states. copyright 2001 Elsevier Science B.V. All rights reserved.
ISSN:0304-8853