# Why is hafnia (HfO2) such a popular Raman spectroscopy target?

**URL:** <https://boards.straightdope.com/t/why-is-hafnia-hfo2-such-a-popular-raman-spectroscopy-target/733954>\
**Category:** Factual Questions\
**Created:** [October 8, 2015, 8:44pm UTC](https://boards.straightdope.com/t/why-is-hafnia-hfo2-such-a-popular-raman-spectroscopy-target/733954 "2015-10-08T20:44:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Napier](https://avatars.discourse-cdn.com/v4/letter/n/ce73a5/32.png) [@Napier](https://boards.straightdope.com/u/Napier)\
**Post date:** [October 8, 2015, 8:44pm UTC](https://boards.straightdope.com/t/why-is-hafnia-hfo2-such-a-popular-raman-spectroscopy-target/733954/1 "2015-10-08T20:44:53Z")

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There seem to be quite a few articles about Raman spectroscopy that use hafnium oxide, or hafnia, as their sample. Why? Is it a particularly remarkable Raman scatterer? As far as I know, hafnia is mildly important as a very high temperature powder-type wire insulation for thermocouples and heaters, and not much of anything else.