Steven T. Bramwell

Steven T. Bramwell
Born (1961-06-07) 7 June 1961 (age 63)
NationalityBritish
Alma materOxford University
Known forspin ice, magnetic monopole, magnetricity, BHP distribution
AwardsHolweck Prize (2010)[1]
Europhysics Prize (2012)[2]
Scientific career
Fieldsphysics and chemistry
InstitutionsLondon Centre for Nanotechnology, University College London
Websitewww.ucl.ac.uk/physics-astronomy/people/professor-steven-bramwell

Steven T. Bramwell (born 7 June 1961) is a British physicist and chemist who works at the London Centre for Nanotechnology and the Department of Physics and Astronomy, University College London. He is known for his experimental discovery of spin ice with M. J. Harris and his calculation of a critical exponent observed in two-dimensional magnets with P. C. W. Holdsworth. A probability distribution for global quantities in complex systems, the "Bramwell-Holdsworth-Pinton (BHP) distribution", (to be implemented in Mathematica[3]) is named after him.[4]

In 2009 Bramwell's group was one of several to report experimental evidence of magnetic monopole excitations in spin ice.[5][6][7][8][9] He coined the term "magnetricity" to describe currents of these effective magnetic "monopoles" in condensed-matter systems.[10]

Bramwell studied chemistry at Oxford University, obtaining his PhD in 1989. He was a professor of physical chemistry at University College London from 2000-2009, before becoming a Professor in the Department of Physics and Astronomy.

  1. ^ Cite error: The named reference holweck was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference europhysics was invoked but never defined (see the help page).
  3. ^ Trott, Michael; Marichev, Oleg (1 February 2013). "The Ultimate Univariate Probability Distribution Explorer". blog.wolfram.com. Retrieved 23 March 2013.{{cite web}}: CS1 maint: multiple names: authors list (link)
  4. ^ Crooks, Gavin E. "Survey of simple, continuous, univariate probability distributions" (PDF). Three Plus One. S2CID 18883018. Archived from the original (PDF) on 6 July 2017.
  5. ^ Fennell, T.; Deen, P. P.; Wildes, A. R.; Schmalzl, K.; Prabhakaran, D.; Boothroyd, A. T.; Aldus, R. J.; McMorrow, D. F.; Bramwell, S. T. (16 October 2009). "Magnetic Coulomb Phase in the Spin Ice Ho2Ti2O7". Science. 326 (5951): 415–417. Bibcode:2009Sci...326..415F. doi:10.1126/science.1177582. ISSN 0036-8075. PMID 19729619. S2CID 206521792.
  6. ^ Morris, D. J. P.; Tennant, D. A.; Grigera, S. A.; Klemke, B.; Castelnovo, C.; Moessner, R.; Czternasty, C.; Meissner, M.; Rule, K. C.; Hoffmann, J.-U.; Kiefer, K. (16 October 2009). "Dirac Strings and Magnetic Monopoles in the Spin Ice Dy2Ti2O7". Science. 326 (5951): 411–414. arXiv:1011.1174. doi:10.1126/science.1178868. ISSN 0036-8075. PMID 19729617. S2CID 104322712.
  7. ^ Bramwell, S. T.; Giblin, S. R.; Calder, S.; Aldus, R.; Prabhakaran, D.; Fennell, T. (October 2009). "Measurement of the charge and current of magnetic monopoles in spin ice". Nature. 461 (7266): 956–959. arXiv:0907.0956. Bibcode:2009Natur.461..956B. doi:10.1038/nature08500. ISSN 1476-4687. PMID 19829376. S2CID 17790972.
  8. ^ Jaubert, L. D. C.; Holdsworth, P. C. W. (April 2009). "Signature of magnetic monopole and Dirac string dynamics in spin ice". Nature Physics. 5 (4): 258–261. arXiv:0903.1074. doi:10.1038/nphys1227. ISSN 1745-2481.
  9. ^ Kadowaki, Hiroaki; Doi, Naohiro; Aoki, Yuji; Tabata, Yoshikazu; J. Sato, Taku; W. Lynn, Jeffrey; Matsuhira, Kazuyuki; Hiroi, Zenji (13 October 2009). "Observation of Magnetic Monopoles in Spin Ice". Journal of the Physical Society of Japan. 78 (10): 103706. doi:10.1143/JPSJ.78.103706. ISSN 0031-9015. S2CID 118373241.
  10. ^ Powell, Devin (14 February 2011). "'Magnetricity' Created in Crystals of Spin Ice". wired.com. Retrieved 23 March 2013.