Strain-dependent ultrafast carrier dynamics and spin–lattice interaction in LaMnO3 films
Jun Wang,
Yaohua Jiang,
Xiongxiong Ran
et al.
Abstract:We investigate the ultrafast carrier dynamics and spin–lattice interaction in strained and unstrained LaMnO3 films via temperature-dependent femtosecond transient optical spectroscopy. The transient reflectivity measurements show two characteristic relaxation processes in both types of films, which are attributed to electron–phonon coupling and phonon-assisted spin–lattice interaction, respectively. The carrier dynamics and coupling between lattice and spin system are well described with the three-temperature … Show more
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