Electrically excited inverse electron spin resonance in a split-ring metamaterial resonator.
Bianisotropic properties of the metamaterial built from split-ring resonators are utilized to excite electron-spin resonance in a gadolinium gallium garnet by the electric field of light. Surprisingly, the observed electron-spin resonance signal is seen as a maximum in the field-dependent transmittance, which indicates strong modifications of the metamaterial parameters in the coupled regime. In the geometry where both modes, electron-spin resonance and split-ring resonance, are active, the anticrossing regime can be observed. These effects can be explained using the classical model of two coupled oscillators and the bianisotropic properties of split-ring resonators.
Experimentelle Physik IV, Universität Würzburg, 97074 Würzburg, Germany.
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Schneider
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Shuvaev
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Engelbrecht
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Demokritov
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Pimenov