Sanchez_2011_New_J._Phys._13_093034.pdf (1.97 MB)
Antimagnets: controlling magnetic fields with superconductor–metamaterial hybrids
journal contribution
posted on 2023-06-09, 13:00 authored by Alvaro Sanchez, Carles Navau, Jordi Prat-Camps, Du-Xing ChenMagnetism is very important in various areas of science and technology, ranging from magnetic recording through energy generation to trapping cold atoms. Physicists have managed to master magnetism—to create and manipulate magnetic fields—almost at will. Surprisingly, there is at least one property that has been elusive until now: how to 'switch off' the magnetic interaction of a magnetic material with existing magnetic fields without modifying them. Here we introduce the antimagnet, a design that conceals the magnetic response of a given volume from its exterior, without altering the external magnetic fields, in some respects analogous to recent theoretical proposals for cloaking electromagnetic waves with metamaterials. However, unlike these devices, which require extreme material properties, our device is feasible and needs only two kinds of available materials: superconductors and isotropic magnetic materials. Antimagnets may have applications in magnetic-based medical techniques such as magnetic resonance imaging or in reducing the magnetic signature of vessels or planes.
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- Published
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- Published version
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New Journal of PhysicsISSN
1367-2630Publisher
Institute of PhysicsExternal DOI
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13Page range
093034Department affiliated with
- Informatics Publications
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- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-04-23First Open Access (FOA) Date
2018-04-23First Compliant Deposit (FCD) Date
2018-04-22Usage metrics
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