Fig. 2: Fe-related spectral transition.
From: Enabling room temperature ferromagnetism in monolayer MoS2 via in situ iron-doping
a PL spectra of as-grown MoS2 (black) and Fe:MoS2 (red) measured at 4 K. The emergence of an emission peak at 2.28 eV in Fe:MoS2 is clearly visible. b PL spectra of Fe:MoS2 for three different domains revealing a high spatial sensitivity of the observed transition. For illustrative purpose, the Fe:MoS2 excitonic emission region below 2 eV is scaled down by a factor 2. c, d PL spectra of the 2.28 eV emission peak excited by 405 nm and 532 nm pump laser wavelength, respectively.
