Related Experiment Video
Updated: Mar 16, 2026
The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
Published on: December 5, 2025
High temperature conductance mapping for correlation of electrical properties with micron-sized chemical and
Karin Vels Hansen1, Kion Norrman1, Torben Jacobsen2
1Department of Energy Conversion and Storage, Technical University of Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark.
Abstract:
High temperature AC conductance mapping is a scanning probe technique for resolving local electrical properties in microscopic areas. It is especially suited for detecting poorly conducting phases and for ionically conducting materials such as those used in solid oxide electrochemical cells. Secondary silicate phases formed at the edge of lanthanum strontium manganite microelectrodes are used as an example for correlation of chemical, microstructural and electrical properties with a spatial resolution of 1-2µm to demonstrate the technique. The measurements are performed in situ in a controlled atmosphere high temperature scanning probe microscope at 650°C in air.
Related Concept Videos
01:13Electrical Conductivity
In a practical conductor, an applied electric field may be sustained, causing a flow of electrons, which produce a current. The differential form of the current, the current density, is related to the electric field.
More generally, it is related to the force per unit charge, which involves the...
01:29Electrical Transport