Self-consistent iteration procedure in analyzing reflectivity and spectroscopic ellipsometry data of multilayered materials and their interfaces
arXiv:1501.00368 · doi:10.1063/1.4897487
Abstract
For multilayered materials, reflectivity depends on the complex dielectric function of all the constituent layers, and a detailed analysis is required to separate them. Furthermore, for some cases, new quantum states can occur at the interface which may change the optical properties of the material. In this paper, we discuss various aspects of such analysis, and present a self-consistent iteration procedure, a versatile method to extract and separate the complex dielectric function of each individual layer of a multilayered system. As a case study, we apply this method to LaAlO/SrTiO heterostructure in which we are able to separate the effects of the interface from the LaAlO film and the SrTiO substrate. Our method can be applied to other complex multilayered systems with various numbers of layers.
15 pages, 18 figures. arXiv admin note: text overlap with arXiv:1412.1564
References in corpus (20)
- Magnetic effects at the interface between nonmagnetic oxides
- Electric Field Control of the LaAlO/SrTiO Interface Ground State
- Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface
- Coexistence of Magnetic Order and Two-dimensional Superconductivity at LaAlO/SrTiO Interfaces
- Kramers-Kronig constrained variational analysis of optical spectra
- Origin of charge density at LaAlO3-on-SrTiO3 hetero-interfaces; possibility of intrinsic doping
- High-temperature interface superconductivity between metallic and insulating cuprates
- Coexistence of superconductivity and ferromagnetism in two dimensions
- Mapping the Spatial Distribution of Charge Carriers in LaAlO3/SrTiO3 Heterostructures
- Tuning spin-orbit coupling and superconductivity at the SrTiO3/LaAlO3 interface: a magneto-transport study
- Interface ferromagnetism and orbital reconstruction in BiFeO3- La0.7Sr0.3MnO3 heterostructures
- Profiling the interface electron gas of LaAlO3/SrTiO3 heterostructures by hard X-ray photoelectron spectroscopy
- Orbital reflectometry
- Critical thickness for ferromagnetism in LaAlO3/SrTiO3 heterostructures
- Dynamical response and confinement of the electrons at the LaAlO3/SrTiO3 interface
- Mechanisms of charge transfer and redistribution in LaAlO3/SrTiO3 revealed by high-energy optical conductivity
- Antisymmetric magnetoresistance of the SrTiO3/LaAlO3 interface
- Direct observation of room temperature high-energy resonant excitonic effects in graphene
- Modulation Doping of a Mott Quantum Well by a Proximate Polar Discontinuity
- Optical conductivity study of screening of many-body effects in graphene interfaces