1997/12/08 by H. Srikanth, Srikanth, H., B. Revcolevschi +7
Engineering · Materials Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Condensed Matter (cond-mat) #FOS: Physical sciences #Geophysics and Sensor Technology #Magnetic and transport properties of perovskites and related materials #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9712093
Submitted to 1997 MRS fall meeting Proceedings, HTML, Paper also available at http://sagar.physics.neu.edu/preprints.html
arxiv created 1997/12/08 · openalex publication_date 1997/12/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The radio frequency (RF) response of La1-xSrxMnO3 single crystals reveal a variety of features associated with the structural, electronic and magnetic properties of the system. The resonance technique operating at ~ 4 MHz employed in this study is sensitive to small changes in both the magnetic susceptibility and resistivity of the samples. Very sharp changes in frequency are observed at the ferromagnetic (FM) and structural phase transitions in both the metallic (x = 0.175) and insulating (0.125) crystals studied. In addition to the known transitions identified as FM and orthorhombic distortions, our experiments show rich structures which are not observed in conventional DC magnetization and transport experiments. Our results demonstrate that RF experiments are ideally suited to investigate the complex phase diagram in the manganites. The colossal frequency change that we observe at the FM transition in the La1-xSrxMnO3 crystals is indicative of the enormous potential for using these materials in high frequency switching applications.