Ultrafast spectroscopy of the Mn 3+ d-d transition in YMnO 3 film

Authors

Yue Xu, Shanghai University
Zuan-Ming Jin, Shanghai University
Gao-Fang Li, Shanghai University
Zheng-Bing Zhang
Xian Lin, Shanghai University
Guo-Hong Ma, Shanghai University
Zhen-Xiang Cheng, University of WollongongFollow

RIS ID

68232

Publication Details

Xu, Y., Jin, Z., Li, G., Zhang, Z., Lin, X., Ma, G. & Cheng, Z. (2012). Ultrafast spectroscopy of the Mn 3+ d-d transition in YMnO 3 film. Acta Physica Sinica, 61 (17), 1.

Abstract

We investigate the photo-induced carrier dynamics and spin-lattice interaction in hexagonal YMnO₃ film by the temperature-dependent femtosecond pump-probe spectroscopy. The spin-lattice interaction is identified from the slow component of the transient transmittance change with the excitation energies tuned to 1.7 eV and 2.0 eV, which are close to Mn³⁺ ions d_(xz),(yz)→d_(z²) and d_{(x²-y²),(xy)}→d_(z²) transition, respectively. Temperature dependences of the spin-lattice relaxation parameters demonstrate that the spin-lattice interaction is strongly connected with the d-d transition within Mn³⁺ ions and enhanced by spin ordering.