Please use this identifier to cite or link to this item:
https://doi.org/10.1088/0953-8984/21/45/456006
DC Field | Value | |
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dc.title | Equilibrium susceptibilities of superparamagnets: Longitudinal and transverse, quantum and classical | |
dc.contributor.author | García-Palacios, J.L. | |
dc.contributor.author | Gong, J.B. | |
dc.contributor.author | Luis, F. | |
dc.date.accessioned | 2014-10-16T09:24:19Z | |
dc.date.available | 2014-10-16T09:24:19Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | García-Palacios, J.L., Gong, J.B., Luis, F. (2009). Equilibrium susceptibilities of superparamagnets: Longitudinal and transverse, quantum and classical. Journal of Physics Condensed Matter 21 (45) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/21/45/456006 | |
dc.identifier.issn | 09538984 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/96514 | |
dc.description.abstract | The equilibrium susceptibility of uniaxial paramagnets is studied in a unified framework which permits us to connect traditional results of the theory of quantum paramagnets, S = 1/2,1,3/2,⋯, with molecular magnetic clusters, S∼5,10,20 all the way up (S = 30,50,100,⋯,) to the theory of classical superparamagnets. This is done using standard tools of quantum statistical mechanics and linear-response theory (the Kubo correlator formalism). Several features of the temperature dependence of the susceptibility curves (crossovers, peaks, deviations from Curie law) are studied and their scalings with S identified and characterized. Both the longitudinal and transverse susceptibilities are discussed, as well as the response of the ensemble with anisotropy axes oriented at random. For the latter case a simple approximate formula is derived too, and its range of validity assessed, which could be used in the modelization of experiments. © 2009 IOP Publishing Ltd. | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.description.doi | 10.1088/0953-8984/21/45/456006 | |
dc.description.sourcetitle | Journal of Physics Condensed Matter | |
dc.description.volume | 21 | |
dc.description.issue | 45 | |
dc.description.page | - | |
dc.description.coden | JCOME | |
dc.identifier.isiut | 000271090200027 | |
Appears in Collections: | Staff Publications |
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