Elastic Properties of Colossal Magnetoresistive Manganites R_{0.67}Sr_{0.33}MnO₃ (R = Pr, Nd, Gd)

• Authors: Y. Reddy
• Languages of publication: EN

Abstracts

EN

The polycrystalline bulk samples of R_{0.67}Sr_{0.33}MnO₃ (R = Pr, Nd, Gd) were prepared by solid state reaction method and characterized by powder X-ray diffraction. The room temperature elastic behavior of these materials was investigated by employing ultrasonic pulse transmission technique at 1 MHz. The values of elastic constants were computed from longitudinal and shear velocities. The measured values were corrected to zero porosity using Hasselman and Fulrath's formulae. The variation of elastic moduli with the size of rare earth ion is interpreted in terms of strength of interatomic bonding.

Keywords

EN

75.47.Gk; 75.47.Lx; 62.20.de; 43.20.Hq

Discipline

• 62.20.de: Elastic moduli
• 75.47.Gk: Colossal magnetoresistance
• 75.47.Lx: Magnetic oxides

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 1
• Pages: 113-116

Dates

published

2016-01

received

2015-07-04

(unknown)

2015-07-23

Contributors

author

Y. Reddy

• Department of Physics, Chaitanya Bharathi Institute of Technology, Hyderabad 500 075, India

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Identifiers

DOI

10.12693/APhysPolA.129.113