Abstract
Electrical four-terminal sensing at (sub-)micrometer scales enables the characterization of key electromagnetic properties within the semiconductor industry, including materials' resistivity, Hall mobility/carrier density, and magnetoresistance. However, as devices' critical dimensions continue to shrink, significant over/underestimation of properties due to a by-product Joule heating of the probed volume becomes increasingly common. Here, we demonstrate how self-heating effects can be quantified and compensated for via 3ω signals to yield zero-current transfer resistance. Under further assumptions, these signals can be used to characterize selected thermal properties of the probed volume, such as the temperature coefficient of resistance and/or the Seebeck coefficient.
| Original language | English |
|---|---|
| Article number | 094711 |
| Journal | Review of Scientific Instruments |
| Volume | 92 |
| Issue number | 9 |
| Number of pages | 6 |
| ISSN | 0034-6748 |
| DOIs | |
| Publication status | Published - 2021 |
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