Cheng, Y. L. and Dai, J. M. and Zhu, X. B. and Wu, D. J. and Yang, Z. R. and Sun, Y. P. (2009) Enhanced Microwave Absorption Properties of Intrinsically Core/shell Structured La0.6Sr0.4MnO3 Nanoparticles. Nanoscale Research Letters, 4 (10). pp. 1153-1158.
|PDF - Published Version|
Official URL: http://www.springerlink.com/content/71587247177504...
The intrinsically core/shell structured La0.6Sr0.4MnO3 nanoparticles with amorphous shells and ferromagnetic cores have been prepared. The magnetic, dielectric and microwave absorption properties are investigated in the frequency range from 1 to 12 GHz. An optimal reflection loss of −41.1 dB is reached at 8.2 GHz with a matching thickness of 2.2 mm, the bandwidth with a reflection loss less than −10 dB is obtained in the 5.5–11.3 GHz range for absorber thicknesses of 1.5–2.5 mm. The excellent microwave absorption properties are a consequence of the better electromagnetic matching due to the existence of the protective amorphous shells, the ferromagnetic cores, as well as the particular core/shell microstructure. As a result, the La0.6Sr0.4MnO3 nanoparticles with amorphous shells and ferromagnetic cores may become attractive candidates for the new types of electromagnetic wave absorption materials.
|Uncontrolled Keywords:||La0.6Sr0.4MnO3 nanoparticles - Core/shell structure - Microwave absorption - Electromagnetic matching|
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nanoelectronics
Physical Science > Nanomagnetics
|Deposited By:||Lesley Tobin|
|Deposited On:||12 Nov 2009 15:24|
|Last Modified:||12 Nov 2009 15:24|
Repository Staff Only: item control page