Abstract
We report on the photomagnetic effect in Rb0.91Mn1.05[Fe(CN)6]⋅0.6H2O ferromagnet. Magnetization of this system was reduced by irradiation with only one-shot of laser pulse (532 nm) at 3 K. This photodemagnetization was observed only when the laser power density (P) was above 9.3 mJ cm−2 pulse−1. The quantum yield was above one and reached 4.5 at P=43 mJ cm−2 pulse−1, showing that this phenomenon is driven by a cooperative effect such as the photoinduced domino effect. Infrared spectra before and after the irradiation indicated that this photomagnetic effect was caused by a photoinduced phase transition from the Fe(II)–CN–Mn(III) phase to the Fe(III)–CN–Mn(II) phase.
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