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https://doi.org/10.1063/9.0000107
DC Field | Value | |
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dc.title | High-frequency magnetotransport in La1 -xSrxMnO3(x = 0.12-0.20) | |
dc.contributor.author | Chaudhuri, U. | |
dc.contributor.author | Mahendiran, R. | |
dc.date.accessioned | 2022-10-12T08:12:48Z | |
dc.date.available | 2022-10-12T08:12:48Z | |
dc.date.issued | 2021-01-01 | |
dc.identifier.citation | Chaudhuri, U., Mahendiran, R. (2021-01-01). High-frequency magnetotransport in La1 -xSrxMnO3(x = 0.12-0.20). AIP Advances 11 (1) : 15345. ScholarBank@NUS Repository. https://doi.org/10.1063/9.0000107 | |
dc.identifier.issn | 2158-3226 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/232556 | |
dc.description.abstract | We report the magnetization, magnetic field dependence of direct current magnetoresistance (dc MR) and alternating current magnetoresistance (ac MR) in La1-xSrxMnO3 (x = 0.12, 0.18, and 0.20) in the frequency range f= 30 MHz to 3000 MHz, at room temperature. The ac MR is negative in all three compositions and shows a dramatic increase in magnitude compared to the dc MR when f = 30 MHz and in a magnetic field H = ±3 kOe. With increasing frequency of current, the sign of ac MR at 3 kOe progressively changes from negative to positive in all these samples which is initiated by appearance of two peaks at H = ±Hr. Line shape analysis of the data indicate that Hr increases linearly with f in x = 0.12 and 0.18. We attribute the two peak behavior at high frequencies to electron paramagnetic resonance in x = 0.12 and 0.18 samples. From the analysis, we obtain the gyromagnetic ratio ?/2? = 2.428 MHz/Oe and 2.690 MHz/Oe for x = 0.18 and 0.12 respectively. The smaller value of ?/2? in x = 0.18 possibly reflects short-range correlations among Mn-spins in the paramagnetic state. © 2021 Author(s). | |
dc.publisher | American Institute of Physics Inc. | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Scopus OA2021 | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.description.doi | 10.1063/9.0000107 | |
dc.description.sourcetitle | AIP Advances | |
dc.description.volume | 11 | |
dc.description.issue | 1 | |
dc.description.page | 15345 | |
Appears in Collections: | Elements Staff Publications |
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