Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes

The longitudinal and shear sound velocities in colossal magnetoresistive material La0.67Ca0.33MnO3 sintered at 1100, 1250 and 1350 1C with average grain size 1, 3 and 5 mm, respectively, have been measured from 80 to 300K using the pulse-echo-overlap method.A pronounced increase in the longitudinal...

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Main Authors:	Ewe, L. S., Hamadneh, Imad, Salamab, Hazar A., Abd Shukor, Roslan
Format:	Article
Language:	English English
Published:	Elsevier 2008
Online Access:	http://psasir.upm.edu.my/id/eprint/5655/ http://psasir.upm.edu.my/id/eprint/5655/ http://psasir.upm.edu.my/id/eprint/5655/ http://psasir.upm.edu.my/id/eprint/5655/1/Sound%20velocity%20in%20perovskite%20manganites%20La0.pdf

id	upm-5655
recordtype	eprints
spelling	upm-56552015-09-15T01:45:01Z http://psasir.upm.edu.my/id/eprint/5655/ Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes Ewe, L. S. Hamadneh, Imad Salamab, Hazar A. Abd Shukor, Roslan The longitudinal and shear sound velocities in colossal magnetoresistive material La0.67Ca0.33MnO3 sintered at 1100, 1250 and 1350 1C with average grain size 1, 3 and 5 mm, respectively, have been measured from 80 to 300K 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 (TIM272 K). XRD patterns showed the orthorhombic structure for all samples. The longitudinal and shear velocities showed the largest hysteresis for the sample with 3 mm grain size. A step-like shear sound velocity anomaly near 120K during cooling or warming was observed to be dependent on the grain size. Elsevier 2008 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/5655/1/Sound%20velocity%20in%20perovskite%20manganites%20La0.pdf Ewe, L. S. and Hamadneh, Imad and Salamab, Hazar A. and Abd Shukor, Roslan (2008) Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes. Physica B, 403 (13-16). pp. 2394-2398. ISSN 2394–2398 http://dx.doi.org/10.1016/j.physb.2007.12.022 10.1016/j.physb.2007.12.022 English
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Putra Malaysia
building	UPM Institutional Repository
collection	Online Access
language	English English
description	The longitudinal and shear sound velocities in colossal magnetoresistive material La0.67Ca0.33MnO3 sintered at 1100, 1250 and 1350 1C with average grain size 1, 3 and 5 mm, respectively, have been measured from 80 to 300K 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 (TIM272 K). XRD patterns showed the orthorhombic structure for all samples. The longitudinal and shear velocities showed the largest hysteresis for the sample with 3 mm grain size. A step-like shear sound velocity anomaly near 120K during cooling or warming was observed to be dependent on the grain size.
format	Article
author	Ewe, L. S. Hamadneh, Imad Salamab, Hazar A. Abd Shukor, Roslan
spellingShingle	Ewe, L. S. Hamadneh, Imad Salamab, Hazar A. Abd Shukor, Roslan Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes
author_facet	Ewe, L. S. Hamadneh, Imad Salamab, Hazar A. Abd Shukor, Roslan
author_sort	Ewe, L. S.
title	Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes
title_short	Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes
title_full	Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes
title_fullStr	Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes
title_full_unstemmed	Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes
title_sort	sound velocity in perovskite manganites la0.67ca0.33mno3 with different grain sizes
publisher	Elsevier
publishDate	2008
url	http://psasir.upm.edu.my/id/eprint/5655/ http://psasir.upm.edu.my/id/eprint/5655/ http://psasir.upm.edu.my/id/eprint/5655/ http://psasir.upm.edu.my/id/eprint/5655/1/Sound%20velocity%20in%20perovskite%20manganites%20La0.pdf
first_indexed	2018-09-07T12:21:33Z
last_indexed	2018-09-07T12:21:33Z
_version_	1610951314227855360

Sound velocity in perovskite manganites La0.67Ca0.33MnO3 with different grain sizes

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