Yifeng Liu, Qing Ai, Gaihua Ye, Zhipeng Ye, Jakub Hrubý, Fan Wang, Tomas Orlando, Yuguo Wang, Jiaming Luo, Qiyi Fang, Boyu Zhang, Tianshu Zhai, Chen-Yang Lin, Clyde Xu, Yifan Zhu, Tanguy Terlier, Stephen Hill, Hanyu Zhu, Rui He, Jun Lou
Spin in semiconductors facilitates magnetically controlled optoelectronic and spintronic devices. In metal halide perovskites (MHPs), doping magnetic ions is proven to be a simple and efficient approach to introducing a spin magnetic momentum. In this work, we present a facile metal ion doping protocol through the vapor-phase metal halide insertion reaction to the chemical vapor deposition (CVD)-grown ultrathin Cs3 BiBr6 perovskites. The Fe-doped bismuth halide (Fe:CBBr) perovskites demonstrate that the iron spins are successfully incorporated into the lattice, as revealed by the spin-phonon coupling below the critical temperature T c around 50 K observed through temperature-dependent Raman spectroscopy...
May 3, 2024: ACS Nano