Optically switched magnetism in photovoltaic perovskite CH<sub>3</sub>NH<sub>3</sub>(Mn:Pb)I<sub>3</sub>.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 27882917.
- Also identified by DOI 10.1038/ncomms13406 and PMC identifier 5123013.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
The demand for ever-increasing density of information storage and speed of manipulation boosts an intense search for new magnetic materials and novel ways of controlling the magnetic bit. Here, we report the synthesis of a ferromagnetic photovoltaic CH<sub>3</sub>NH<sub>3</sub>(Mn:Pb)I<sub>3</sub> material in which the photo-excited electrons rapidly melt the local magnetic order through the Ruderman-Kittel-Kasuya-Yosida interactions without heating up the spin system. Our finding offers an alternative, very simple and efficient way of optical spin control, and opens an avenue for applications in low-power, light controlling magnetic devices.