作者: K. S. Chang , M. Aronova , O. Famodu , I. Takeuchi , S. E. Lofland
DOI: 10.1063/1.1427438
关键词: Dielectric 、 Materials science 、 Analytical chemistry 、 Microscopy 、 Scanning probe microscopy 、 Microwave 、 Epitaxy 、 Multi-mode optical fiber 、 Relaxation (NMR) 、 Microscope
摘要: We have performed variable-temperature multimode quantitative microwave microscopy of in situ epitaxial Ba1−xSrxTiO3 thin-film composition spreads fabricated on (100) LaA1O3 substrates. Dielectric properties were mapped as a function continuously varying from BaTiO3 to SrTiO3. demonstrated nondestructive temperature-dependent dielectric characterization local regions. Measurements are simultaneously taken at multiple resonant frequencies the microscope cavity. The measurements allow frequency dispersion studies. observe strong composition-dependent relaxation frequencies.