Effect of Crystal Symmetry on the Spin States of Fe3+ and Vibration Modes in Lead-Free Double Perovskite Cs2AgBi(Fe)Br6.

Yuttapoom Puttisong,Fabrizio Moro,Shula Chen,Pontus Höjer,Weihua Ning,Feng Gao,Irina Buyanova,Weimin Chen

Effect of Crystal Symmetry on the Spin States of Fe3+ and Vibration Modes in Lead-Free Double Perovskite Cs2AgBi(Fe)Br6.

2020

Yuttapoom Puttisong
Fabrizio Moro
Shula Chen
Pontus Höjer
Weihua Ning
Feng Gao
Irina Buyanova
Weimin Chen

We show by electron spin resonance (ESR) and Raman spectroscopies that the crystal phase transition of the lead-free double-perovskite Cs2AgBiBr6 has a profound symmetry-breaking effect on the high...

Keywords:

Normal mode
Photochemistry
Crystal structure
Chemistry
Spin states
Condensed matter physics
double perovskite
Electron paramagnetic resonance
Raman spectroscopy
Phase transition

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