Intrinsic electromagnetic properties
Abstract
Electromagnetic properties of materials are commonly inferred from how they scatter light. Here we show that this diagnostic is fundamentally incomplete. We predict the existence of an intrinsic electromagnetic property that remains invisible in any scattering experiment independently of geometry, polarization, far-field or near-field excitation. Still, this property affects the radiation emitted by the sources embedded inside the material. We reveal this phenomenon for a specially designed nonreciprocal magnetoelectric material combining axion and dual axion responses. Our results establish intrinsic electromagnetic properties as a distinct class of material responses and show that scattering experiments alone are insufficient to characterize matter.
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BibTeX
@misc{barredoalamilla2026intrinsic,
title = {{Intrinsic electromagnetic properties}},
author = {Eduardo Barredo-Alamilla and Timur Z. Seidov and Daniel A. Bobylev and Maxim A. Gorlach},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.02280},
eprint = {2610.02280},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.02280},
}
RIS
TY - UNPB
TI - Intrinsic electromagnetic properties
AU - Eduardo Barredo-Alamilla
AU - Timur Z. Seidov
AU - Daniel A. Bobylev
AU - Maxim A. Gorlach
PY - 2026
DA - 2026/10/01
PB - arXiv
DO - 10.48550/arxiv.2610.02280
UR - https://arxiv.org/abs/2610.02280
AB - Electromagnetic properties of materials are commonly inferred from how they scatter light. Here we show that this diagnostic is fundamentally incomplete. We predict the existence of an intrinsic electromagnetic property that remains invisible in any scattering experiment independently of geometry, polarization, far-field or near-field excitation. Still, this property affects the radiation emitted by the sources embedded inside the material. We reveal this phenomenon for a specially designed nonreciprocal magnetoelectric material combining axion and dual axion responses. Our results establish intrinsic electromagnetic properties as a distinct class of material responses and show that scattering experiments alone are insufficient to characterize matter.
ER -