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|Title:||Magnetically tunable rf wave absorption in polycrystalline La 0.67 Ba0.33 MnO3||Authors:||Naik, V.B.
|Issue Date:||2009||Citation:||Naik, V.B., Mahendiran, R. (2009). Magnetically tunable rf wave absorption in polycrystalline La 0.67 Ba0.33 MnO3. Applied Physics Letters 94 (14) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3116119||Abstract:||We investigated temperature and magnetic field dependent radio-frequency electromagnetic absorption in La0.67 Ba0.33 MnO 3 by monitoring changes in resonance frequency (fr) and current (I) through a LC resonant circuit powered by an integrated chip oscillator. The ferromagnetic to paramagnetic transition at TC in zero magnetic field is accompanied by an abrupt increase in fr and I and they are tunable by small external magnetic field. We observed fractional changes as much as 46% in Δ fr / fr and 23% in ΔI/I around TC under μ0 H=0.1 T that can be exploited for low-magnetic field sensors and other applications. © 2009 American Institute of Physics.||Source Title:||Applied Physics Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/97130||ISSN:||00036951||DOI:||10.1063/1.3116119|
|Appears in Collections:||Staff Publications|
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