Science

Layered superionic conductor hosts atomic vibrations that behave like liquids, glasses and crystals

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Briefings

Scientists at the Institute of Metal Research (IMR) of the Chinese Academy of Sciences directly observed AgCrSe, a layered superionic conductor, exhibiting phonon behaviors resembling liquids, glasses, and crystals simultaneously. This observation occurred in a crystalline solid, providing the first direct evidence of such coexisting states in this specific material system.

Key points

• AgCrSe is a layered superionic conductor where phonon behaviors mimic liquid, glass, and crystal states.
• The observation was made directly by scientists at the Institute of Metal Research (IMR) of the Chinese Academy of Sciences.

Context

This research represents a significant step in understanding complex phonon dynamics in layered superionic conductors, which are critical for advanced energy storage applications.

Limitations

The observation was conducted on a single crystalline solid sample; the generalizability of these behaviors to other materials or conditions remains unverified.

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