Phys. Rev. Lett. 91, 200601 (2003) [4 pages]Subharmonics and Aperiodicity in Hysteresis LoopsReceived 15 January 2003; published 12 November 2003 We show that it is possible to have hysteretic behavior for magnets that does not form simple closed loops in steady state, but cycles multiple times before returning to its initial state. We show this by studying the low temperature dynamics of the 3D Edwards-Anderson spin glass. The specific multiple varies from system to system and is often quite large and increases with system size. The last result suggests that the magnetization could be aperiodic in the large system limit for some realizations of randomness. It should be possible to observe this phenomenon experimentally. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.200601
DOI:
10.1103/PhysRevLett.91.200601
PACS:
05.40.–a, 05.70.Ln, 44.10.+i, 75.10.Nr
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