Parish, MM;
Littlewood, PB;
(2008)
Magnetocapacitance in Nonmagnetic Composite Media.
PHYS REV LETT
, 101
(16)
, Article 166602. 10.1103/PhysRevLett.101.166602.
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Abstract
The dielectric response in a magnetic field is routinely used to probe the existence of coupled magnetic and elastic order in the multiferroics. However, here we demonstrate that magnetism is not necessary to produce a magnetocapacitance when the material is inhomogeneous. By considering a two-dimensional, two-component composite medium, we find a characteristic dielectric resonance that depends on magnetic field. We propose this as a possible signature of inhomogeneities and we argue that this behavior has already been observed in nanoporous silicon and some manganites.
| Type: | Article |
|---|---|
| Title: | Magnetocapacitance in Nonmagnetic Composite Media |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.101.166602 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.101.166602 |
| Language: | English |
| Additional information: | © 2008 The American Physical Society |
| Keywords: | STRONG MAGNETIC-FIELD, INHOMOGENEITIES |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1332990 |
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