This paper simulates an extended Dicke model using a crystal of ErFeO3, where Er3+ spins act as atoms and Fe3+ magnons as photons. Through terahertz spectroscopy and magnetocaloric effect measurements, a novel atomically ordered phase, alongside superradiant and normal phases, was identified. Phase boundaries, including first- and second-order transitions, were elucidated, laying groundwork for studying multiatomic quantum optics models in solid-state systems.
Publisher
Communications Materials
Published On
Mar 22, 2024
Authors
Nicolas Marquez Peraca, Xinwei Li, Jaime M. Moya, Kenji Hayashida, Dasom Kim, Xiaoxuan Ma, Kelly J. Neubauer, Diego Fallas Padilla, Chien-Lung Huang, Pengcheng Dai, Andriy H. Nevidomskyy, Han Pu, Emilia Morosan, Shixun Cao, Motoaki Bamba, Junichiro Kono
Tags
Dicke model
ErFeO3
superradiant phase
normal phase
quantum optics
phase transitions
terahertz spectroscopy
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