Ghosh, S;
Rosenbaum, TF;
Aeppli, G;
(2008)
Macroscopic Signature of Protected Spins in a Dense Frustrated Magnet.
PHYS REV LETT
, 101
(15)
, Article 157205. 10.1103/PhysRevLett.101.157205.
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Abstract
The inability of systems of interacting objects to satisfy all constraints simultaneously leads to frustration. A particularly important consequence of frustration is the ability to access certain protected parts of a system without disturbing the others. For magnets such "protectorates" have been inferred from theory and from neutron scattering, but their practical consequences have been unclear. We show that a magnetic analogue of optical hole-burning can address these protected spin clusters in a well-known, geometrically frustrated Heisenberg system, gadolinium gallium garnet. Our measurements additionally provide a resolution of a famous discrepancy between the bulk magnetometry and neutron diffraction results for this magnetic compound.
| Type: | Article |
|---|---|
| Title: | Macroscopic Signature of Protected Spins in a Dense Frustrated Magnet |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.101.157205 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.101.157205 |
| Language: | English |
| Additional information: | © 2008 The American Physical Society |
| Keywords: | GADOLINIUM GALLIUM GARNET, HUBBARD-MODEL, FERROMAGNETISM, GD3GA5O12, DYNAMICS, SYSTEM, STATE, GLASS, ICE |
| UCL classification: | UCL 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.ucl.ac.uk/id/eprint/112725 |
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