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|Title:||Influence of length and measurement geometry on magnetoimpedance in La0.7 Sr0.3 MnO3||Authors:||Rebello, A.
|Issue Date:||2010||Citation:||Rebello, A., Mahendiran, R. (2010). Influence of length and measurement geometry on magnetoimpedance in La0.7 Sr0.3 MnO3. Applied Physics Letters 96 (3) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3293292||Abstract:||We show that ac magnetoresistance at room temperature in La0.7 Sr0.3 MnO3 is extremely high (≈-47% in μ0 H=100 mT, f=3-5 MHz), and magnetic field dependence of reactance exhibits a double peak behavior. However, magnitudes of the ac magnetoresistance and magnetoreactance for a fixed length of the sample (li) decrease with decreasing separation (l v) between voltage probes unlike the dc magnetoresistance. On the contrary, change in li has a negligible influence on magnetoimpedance when lv is fixed. Our results indicate that high frequency electrical transport is sensitive to local variations in the magnetic permeability. © 2010 American Institute of Physics.||Source Title:||Applied Physics Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/96913||ISSN:||00036951||DOI:||10.1063/1.3293292|
|Appears in Collections:||Staff Publications|
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