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Tunable and absolute electromagnetic vacuum in two-dimensional photonic-band-gap Based on multiferroic materials

Chen, Kai; Jia, Wei; Chen, Yanbin; Lu, Minghui; Zhang, Xirui; Yang, Wei; Wu, Yong; Huang, Chenxi; Li, Xiangyin; Su, Jie; Liu, Junming; Lu, Xiaomei; Zhu, Jinsong; Liu, Yun


When multiferroic terbium manganite (TbMnO₃) crystal cylinders are periodically arranged in a square lattice, the resulting two-dimensional (2D) system exhibits photonic band gaps (PBGs). The absolute PBG originating from the Mie resonance is modulated from closed to open by applying an external static magnetic field, which is attributed to the electromagnon depression of the dielectric constant by the rearrangement of antiferromagnetic order. Tunable electromagnetic band structure may be...[Show more]

CollectionsANU Research Publications
Date published: 2011-09-28
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.3643053


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