Superradiant phase transition in hybrid perovskites: critical temperature and density

Melike Biliroglu; Kenan Gundogdu

doi:10.1117/12.3028290

3 October 2024 Superradiant phase transition in hybrid perovskites: critical temperature and density

Melike Biliroglu, Kenan Gundogdu

Author Affiliations +

Proceedings Volume 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII; 131390H (2024) https://doi.org/10.1117/12.3028290
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

Macroscopic quantum phase transitions in solid-state systems hold promise for advancing high-temperature quantum technologies. However, the practical implementation of such technologies is hindered by rapid thermal dephasing, confining macroscopic quantum phenomena to cryogenic conditions. This limitation emphasizes the need for understanding the mechanisms governing phase transitions, including the properties of materials determining critical temperature and the process leading to macroscopic coherence. In this study, we delve into the superradiant phase transition in perovskites, focusing on critical temperatures and densities influencing the emergence of macroscopically coherent quantum states within electronic excitations in crystalline matter. Our analysis of the phase diagram of PEA:CsPb(Br/Cl) from 78K to 285K reveals a distinctive dome-shaped pattern, akin to quantum phenomena such as superconductivity or superfluidity. This intriguing similarity holds the potential to provide insights into the unknown mechanisms of high-temperature quantum phenomena, potentially paving the way for practical advancements in quantum technologies designed to operate at elevated temperatures.

Conference Presentation

Citation Download Citation

Melike Biliroglu and Kenan Gundogdu "Superradiant phase transition in hybrid perovskites: critical temperature and density", Proc. SPIE 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII, 131390H (3 October 2024); https://doi.org/10.1117/12.3028290

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