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Magnetic Monopoles in Spin Ice

Friday 17th February 2012

Department of Physics, University of Warwick

Organiser: O.A. Petrenko (Physics, Warwick), S.T. Bramwell (UCL)

Conference email: physicsdays at forums dot warwick dot ac dot uk


Background and Purpose

Recent developments in the physics of spin ice have identified emergent magnetic monopole excitations that couple to laboratory magnetic fields. Since 2008 there have been many high impact publications in this area including several in Science or Nature group journals. The field is rapidly advancing, with many new ideas being advanced, and new avenues explored. In particular, currents of magnetic monopoles in spin ice are closely analogous to protonic currents in water ice, a solid electrolyte. Hence there is a strong overlap with ice physics and electrochemistry, which has introduced new concepts into magnetism that that from a traditional viewpoint seem very alien. The interchange of ideas between magnetism, ice physics and electrochemistry promises exciting advances in all these areas, yet it is important that scientists engage in discussion and the exchange of information to prevent progress from stagnating.



10.00 - Arrival and coffee 
11.00 Steve Bramwell Overview: what are the issues in the field?
11.45 Ivan Ryzhkin Magnetic monopoles and relaxation processes in spin ice
12.30 - Lunch
14.00 Ludovic Jaubert Concept of the Dual Electrolyte
14.15 Vojtech Kaiser Numerical simulation of Wien effect
14.30 Laura Bovo Magnetic relaxation above 1 K
14.45 Elsa Lhotel Magnetic relaxation below 1 K
15.00 Stephen Blundell   MuSR and Wien effect
15.15 Martin Lees MuSR experiments
15.30 - Tea break
16.30 Claudio Castelnovo Thermal runaway & phonons
16.45 Shaun Fisher Thermal measurements
17.00 Oleg Petrenko Ultrasound measurements
17.15 Jorge Quintanilla Quantum dynamics
17.30 Nic Shannon Spin ice with quantum fluctuations
17.45 Peter Holdsworth Summary
18.00 - Final Discussion
18.15 - Close
- - -



Participation is by invitation only. Please contact physicsdays at forums dot warwick dot ac dot uk if you think this workshop is interesting. Normally, we would be happy to accept self-invitations, but will not be able to pay for any expenses in this case.

This list of participants is accurate as of 30th January 2012.


  Name Affiliation
1 Steve Bramwell UCL
2 Peter Holdsworth Lyon, France
3 Shaun Fisher Lancaster
4 Vojtech Kaiser ENS Lyon & MPIPKS Dresden

Nic Shannon


Jorge Quintanilla

7 Ivan Ryzhkin Moscow, Russia

Prabhakaran Dharmalingam


Ludovic Jaubert


Laura Bovo


Sean Giblin

ISIS, Rutherford Appleton Lab

Claudio Castelnovo

Royal Holloway

Stephen Blundell


Elsa Lhotel

CNRS Grenoble, France

Adrian Hillier

ISIS, Rutherford Appleton Lab
16 Simon Banks UCL
17 Martin Lees Warwick
18 Geetha Balakrishnan Warwick

Tom Hase

20 Oleg Petrenko





All talks will be held in Room 2.06 of the Materials and Analytical Sciences Building, University of Warwick. This is building 37 of the Warwick central campus. Please note that the university is located at the outskirts of Coventry and not in Warwick. See for travel details and for maps of the central campus. In case you come by car, parking is available for delegates at car park 15.



Oleg Petrenko
Physics Department
University of Warwick
Coventry CV4 7AL
United Kingdom

e-mail: physicsdays at forums dot warwick dot ac dot uk
Phone: +44 (0)24 76573128
Fax: +44 (0)24 76150897

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