Study of structural, transport and magneto-crystalline anisotropy in La1−xSrxMnO3 (0.30 ≤ x ≤ 0.40) perovskite manganites

dc.contributor.author Channagoudra, Ganesha
dc.contributor.author Gupta, Shalabh
dc.contributor.author Dayal, Vijaylakshmi
dc.contributor.department Ames National Laboratory
dc.date 2021-03-18T07:50:29.000
dc.date.accessioned 2021-04-29T23:39:35Z
dc.date.available 2021-04-29T23:39:35Z
dc.date.issued 2021-02-03
dc.description.abstract <p>In this paper we present structural, transport, magnetic and magneto-crystalline anisotropy of La1−xSrxMnO3 (х = 0.30, 0.33, 0.36, and 0.40) synthesized using the solid-state reaction method. The X-ray diffraction pattern of the samples is well indexed to the rhombohedral structure with R3c space group. Lattice parameters and unit cell volume are found to decrease monotonically upon increasing Sr2+ concentration at La3+ site. X-ray photoelectron spectroscopy confirms the presence of Mn4+ and Mn3+, the ratio of which (Mn4+/Mn3+) increases from 0.44 to 0.64 with increasing Sr2+ concentration. From the ρ(T) and M(T) data analysis, we find that TMI and MS are larger for x = 0.33 composition, suggesting a weakening of the double-exchange interaction due to competing super-exchange interactions in x = 0.30, 0.36 and 0.40 samples. We calculated MCA constant (K1) by fitting the saturation magnetisation data at a higher magnetic field using the law of approach model, M = MS [1-a/H-b/H2]-χH with K1 2 = (105/8)bMs2 and is in the order of 105 erg/cm3.</p>
dc.identifier archive/lib.dr.iastate.edu/ameslab_manuscripts/854/
dc.identifier.articleid 1860
dc.identifier.contextkey 22078101
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/854
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/104496
dc.language.iso en
dc.relation.ispartofseries IS-J 10430
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_manuscripts/854/IS_J_10430.pdf|||Sat Jan 15 02:13:10 UTC 2022
dc.source.uri 10.1063/9.0000119
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Physics
dc.title Study of structural, transport and magneto-crystalline anisotropy in La1−xSrxMnO3 (0.30 ≤ x ≤ 0.40) perovskite manganites
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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