What is it about?
Metastable charge density wave states are topologically protected in the sense that transitions from one state to another requires a topological transformation. The process of relaxation from one state to another can be influenced externally, through strain for example. The understanding reached on the basis of these experiments helps in increase the potential usefulness of memristors based on charge density wave switching.
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Why is it important?
The understanding of ways to control the relaxation processes, reached on the basis of these experiments helps to increase the potential usefulness of memristors based on charge density wave switching.
Perspectives
In contrast to the ultrafast phenomena associated with switching, where rapid progress has been achieved in the last decade, the origin of metastability in photo-induced or electrical-pulse-induced switching systems is particularly poorly understood. The present paper gives new insight into the relaxation processes, which lead to control of stability, and potentially useful new memory devices.
Professor Dragan Mihailovic
Jozef Stefan Institute
Read the Original
This page is a summary of: Controlling the metal-to-insulator relaxation of the metastable hidden quantum state in 1T-TaS2, Science Advances, July 2015, American Association for the Advancement of Science,
DOI: 10.1126/sciadv.1500168.
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