In-plane compressive strain increases the two-magnon Raman energy and the exchange coupling J in Sr2IrO4 thin films, consistent with DFT showing enhanced Jeff=1/2 hopping.
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Compressive-strain induced enhancement of exchange interactions and short-range magnetic order in Sr$_2$IrO$_4$ investigated by Raman spectroscopy
In-plane compressive strain increases the two-magnon Raman energy and the exchange coupling J in Sr2IrO4 thin films, consistent with DFT showing enhanced Jeff=1/2 hopping.