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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.06057 |
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| _version_ | 1866916938914988032 |
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| author | Zhang, Baolong Duan, Ruihuan Mishra, Sobhan Subhra Jana, Sambhu Kim, Jonghyeon Caiwei, Thomas Tan Tan, Yi Ji Wang, Wenhao Ietro, Pang Teng Chen Liu, Zheng Singh, Ranjan |
| author_facet | Zhang, Baolong Duan, Ruihuan Mishra, Sobhan Subhra Jana, Sambhu Kim, Jonghyeon Caiwei, Thomas Tan Tan, Yi Ji Wang, Wenhao Ietro, Pang Teng Chen Liu, Zheng Singh, Ranjan |
| contents | Ferrons are quantum excitations of electric polarization in ferroelectrics and electric analogues of magnons but have lacked direct experimental verification at room temperature. We harness the coupling of soft phonons and ferroelectric order in layered NbOX2 (X = I, Br, Cl) to generate, detect, and control giant ferrons, creating a new class of ultralow-power, chip-scale terahertz (THz) sources. Multiple ferron modes produce intense, narrowband THz emission with quality factors up to 228 and radiation efficiencies up to five orders of magnitude greater than state of the art semiconductor emitters. Resonant excitation of a high-Q ferron mode achieves efficiencies two orders of magnitude higher than intense lithium niobate THz sources. We further demonstrate direct, non-volatile electric-field control of ferron oscillations. These findings provide evidence for multiple ferrons and establish Ferronics as a foundational platform for light- and field-driven control of quantum order, with broad impact on ultrafast electronics, photonics, quantum technologies, and next-generation wireless communication. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_06057 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electric-field Control of Giant Ferronics Zhang, Baolong Duan, Ruihuan Mishra, Sobhan Subhra Jana, Sambhu Kim, Jonghyeon Caiwei, Thomas Tan Tan, Yi Ji Wang, Wenhao Ietro, Pang Teng Chen Liu, Zheng Singh, Ranjan Materials Science Ferrons are quantum excitations of electric polarization in ferroelectrics and electric analogues of magnons but have lacked direct experimental verification at room temperature. We harness the coupling of soft phonons and ferroelectric order in layered NbOX2 (X = I, Br, Cl) to generate, detect, and control giant ferrons, creating a new class of ultralow-power, chip-scale terahertz (THz) sources. Multiple ferron modes produce intense, narrowband THz emission with quality factors up to 228 and radiation efficiencies up to five orders of magnitude greater than state of the art semiconductor emitters. Resonant excitation of a high-Q ferron mode achieves efficiencies two orders of magnitude higher than intense lithium niobate THz sources. We further demonstrate direct, non-volatile electric-field control of ferron oscillations. These findings provide evidence for multiple ferrons and establish Ferronics as a foundational platform for light- and field-driven control of quantum order, with broad impact on ultrafast electronics, photonics, quantum technologies, and next-generation wireless communication. |
| title | Electric-field Control of Giant Ferronics |
| topic | Materials Science |
| url | https://arxiv.org/abs/2509.06057 |