| dc.contributor.author | COFFEY, WILLIAM | en |
| dc.date.accessioned | 2013-11-19T19:33:20Z | |
| dc.date.available | 2013-11-19T19:33:20Z | |
| dc.date.issued | 2012 | en |
| dc.date.submitted | 2012 | en |
| dc.identifier.citation | William T. Coffey and Yuri P. Kalmykov, Thermal fluctuations of magnetic nanoparticles: fifty years after Brown, Journal of Applied Physics, 112, 12, 2012 | en |
| dc.identifier.other | Y | en |
| dc.description | PUBLISHED | en |
| dc.description.abstract | The reversal time, superparamagnetic relaxation time, of the magnetization of fine single domain
ferromagnetic nanoparticles owing to thermal fluctuations plays a fundamental role in information
storage, paleomagnetism, biotechnology, etc. Here a comprehensive tutorial-style review of the
achievements of fifty years of development and generalizations of the seminal work of Brown
[Phys. Rev.
130
, 1677 (1963)] on thermal fluctuations of magnetic nanoparticles is presented.
Analytical as well as numerical approaches to the estimation of the damping and temperature
dependence of the reversal time based on Brown?s Fokker-Planck equation for the evolution of the
magnetic moment orientations on the surface of the unit sphere are critically discussed while the
most promising directions for future research are emphasized | en |
| dc.description.sponsorship | We would like to thank a number of individuals who have greatly helped us, directly or indirectly, in the preparation of the present review. In particular, we thank B. Barbara, R. Chantrell, O. Chubykalo-Fesenko, P.J. Cregg, D.S.F. Crothers, the late J.-L. Dormann, P. Fannin, D. Garanin, L. Geoghegan, E. Kennedy, D.J. McCarthy, H. El Mrabti, B. Mulligan, B. Ouari, Y.L. Raikher, B. Scaife, V.I. Stepanov, A. Thiaville, J.T. Waldron, J.-E. Wegrowe, and W. Wernsdorfer. Special thanks are due to S.V. Titov and P.-M. Dejardin, who have carefully read the entire manuscript and proposed a number of corrections and improvements in the presentation. The partial support of the work by the European Community (Programme FP7, project DMH, No. 295196) is gratefully acknowledged. | en |
| dc.language.iso | en | en |
| dc.relation.ispartofseries | Journal of Applied Physics | en |
| dc.relation.ispartofseries | 112 | en |
| dc.relation.ispartofseries | 12 | en |
| dc.rights | Y | en |
| dc.subject | KRAMERS PROBLEM | en |
| dc.subject | LANGEVIN-DYNAMICS | en |
| dc.subject | CUBIC ANISOTROPY | en |
| dc.subject | TO-NOISE RATIO | en |
| dc.subject | DOMAIN FERROMAGNETIC PARTICLES | en |
| dc.subject | FOKKER-PLANCK EQUATION | en |
| dc.subject | UNIAXIAL SUPERPARAMAGNETIC PARTICLES | en |
| dc.subject | ACTIVATED RATE-PROCESSES | en |
| dc.subject | STONER-WOHLFARTH MODEL | en |
| dc.title | Thermal fluctuations of magnetic nanoparticles: fifty years after Brown | en |
| dc.type | Journal Article | en |
| dc.type.supercollection | scholarly_publications | en |
| dc.type.supercollection | refereed_publications | en |
| dc.identifier.peoplefinderurl | http://people.tcd.ie/wcoffey | en |
| dc.identifier.rssinternalid | 89668 | en |
| dc.identifier.doi | http://dx.doi.org/10.1063/1.4754272 | en |
| dc.relation.ecprojectid | info:eu-repo/grantAgreement/EC/FP7/295196 | |
| dc.rights.ecaccessrights | OpenAccess | |
| dc.contributor.sponsor | European Union (EU) | en |
| dc.contributor.sponsorGrantNumber | 295196 | en |
| dc.identifier.uri | http://hdl.handle.net/2262/67649 | |
