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http://dspace2020.uniten.edu.my:8080/handle/123456789/9422Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Ewe, L.S. | |
| dc.contributor.author | Hamadneh, I. | |
| dc.contributor.author | Salama, H.A. | |
| dc.contributor.author | Abd-Shukor, R. | |
| dc.date.accessioned | 2018-02-28T23:58:33Z | - |
| dc.date.available | 2018-02-28T23:58:33Z | - |
| dc.date.issued | 2008 | |
| dc.identifier.uri | http://dspace.uniten.edu.my/jspui/handle/123456789/9422 | - |
| dc.description.abstract | The longitudinal and shear sound velocities in colossal magnetoresistive material La0.67Ca0.33MnO3 sintered at 1100, 1250 and 1350 °C with average grain size 1, 3 and 5 μm, respectively, have been measured from 80 to 300 K using the pulse-echo-overlap method. A pronounced increase in the longitudinal sound velocity was observed in all samples around the insulator-metal transition temperature (TIM∼272 K). XRD patterns showed the orthorhombic structure for all samples. The longitudinal and shear velocities showed the largest hysteresis for the sample with 3 μm grain size. A step-like shear sound velocity anomaly near 120 K during cooling or warming was observed to be dependent on the grain size. © 2007 Elsevier B.V. All rights reserved. | |
| dc.title | Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes | |
| item.fulltext | No Fulltext | - |
| item.grantfulltext | none | - |
| Appears in Collections: | COE Scholarly Publication | |
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