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EPS CMD Europhysics Prize 2018 - the call for nominations is open

Posted By Administration, Thursday 28 September 2017
Updated: Thursday 28 September 2017
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News from CMD26 - Condensed Matter in Groningen

Posted By admin, Thursday 26 May 2016

The 26th Conference of the Condensed Matter Division of the EPS will take place in Groningen, the Netherlands, from 4 to 9 September 2016.
Please take note of the following important dates:

  • Notification of acceptance of abstracts: June 17th, 2016

  • Early registration deadline: June 20th, 2016

  • Author payment deadline: July 11th, 2016 
Further details on the conference can be found at: http://cmd26.eu/

Tags:  Condensed Matter  EPS CMD  Europhysics Prize 2016 

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2016 EPS CMD Europhysics Prize

Posted By Administration, Monday 23 May 2016

The prize is awarded every 2 years by the Condensed Matter Division of the European Physical Society for outstanding achievement in condensed matter physics.

The European Physical Society Condensed Matter Division is proud to announce that the 2016 EPS CMD Europhysics Prize is awarded to

  • Peter Böni
  • Aleksandr N. Bogdanov
  • Christian Pfleiderer
  • Achim Rosch
  • Ashvin Vishwanath

“for the theoretical prediction, the experimental discovery and the theoretical analysis of a magnetic skyrmion phase in MnSi, a new state of matter.”

Discovery of a Skyrmion Phase in MnSi

Initially proposed as a model for hadrons in a mesonic field theory in particle physics, skyrmions have recently been discovered in magnetic systems thus establishing the existence of a new state of matter. Such structures exhibit a topological Hall effect and can be moved by currents much smaller than those required to displace domain walls thus opening the door to applications in data storage.

This nomination is in support of an exemplary collaboration of both theoretical and experimental groups on a most intriguing magnetic state of topological nature: a magnetic skyrmion crystal. In the remarkable pioneering studies by the nominees, this state was first proposed theoretically and subsequently discovered by neutron scattering in MnSi and its features have been impressively analyzed theoretically.

Magnetic skyrmions are spin textures on length scales of tens of nanometers that behave like particles. Similar to a vortex in a superconductor, a skyrmion cannot be unwound without creating discontinuities. This topological stability is reflected by a nonzero topological index also known as the skyrmion number.

Prior to the theoretical work by A.N. Bogdanov and co-workers [1, 2], conventional wisdom stated that skyrmions cannot spontaneously form as ground states in magnetic materials. It thus came as a considerable surprise that these authors were able to demonstrate that skyrmion lattices may spontaneously form in noncentrosymmetric magnetic systems if longitudinal fluctuations of the magnetization are facilitated. MnSi was proposed as one of the suitable candidates for such a scenario as it exhibited strong longitudinal magnetization fluctuations and the absence of a centre of inversion may result in a Dzyaloshinskii-Moriya contribution to the Hamiltonian.

Independently of these authors, A. Vishwanath and co-workers [3] theoretically proposed the existence of a “helical spin crystal” in MnSi, motivated by its enigmatic high-pressure phase. These authors also showed that the resulting skyrmion spin crystal can be interpreted as a multimode superposition of helical spin spirals. In subsequent work, Vishwanath and co-author also predicted the existence of a topological Hall effect resulting from a fixed phase relationship of these spin spirals, a phenomenon which has subsequently been verified in Ref. [4].

These theoretical proposals were taken up by a team around C. Pfleiderer, P. Böni, and A. Rosch, building on their respective expertise in transport properties of unconventional phases in MnSi, neutron scattering on noncollinearly ordered magnetic systems, and the provision of visionary theoretical support. Resulting from this combined expertise, the team was able to identify and theoretically explain the novel skyrmion phase in MnSi. The first experimental evidence for the existence of a skyrmion crystal in MnSi was provided by small angle neutron scattering (SANS) [5]. The SANS diffraction pattern was consistent with a hexagonal skyrmion lattice which was interpreted as a triple wavevector state. While prior theoretical work suggested the exclusive stability of a conical helical state in a field, the authors demonstrated within a sophisticated theoretical analysis in Ref. [5] that the thermodynamic fluctuations around the skyrmion crystal were fundamental in stabilizing the observed skyrmion crystal.

While highly suggestive of a skyrmion crystal, the SANS results did not yet unambiguously prove a fixed phase relationship between the spin spirals. To settle this issue, C. Pfleiderer, P. Böni, A. Rosch and co- workers investigated the Hall effect in Ref [4]. The observed Hall resistivity showed an additional contribution, in quantitative agreement with a Berry-phase induced emergent magnetic field originating from the nonvanishing skyrmion number of the topologically nontrivial skyrmion lattice.

Finally, C. Pfleiderer, P. Böni, A. Rosch and co-workers demonstrated that skyrmions can be manipulated similarly to other magnetic topological defects such as domain walls. Applying currents that were more than five orders of magnitude weaker than those used in similar experiments on domain walls, the authors observed a distinct rotation of the skyrmion lattice. This demonstrates the extraordinarily weak pinning of the skyrmion lattice and opens the door to manipulation of skyrmions in related systems.

This unique effort led by this group of theorists and experimentalists has resulted in the identification of a new state of matter that has literally created a “skyrmion-boom” in the condensed matter community. Not only have skyrmions also been identified in a larger class of systems, but also explicit proposals emerged to use skyrmions instead of domain walls for racetrack-type memory technologies. It is testament to the excellent work by P. Böni, A.N. Bogdanov, C. Pfleiderer, A. Rosch, A. Vishwanath that skyrmions have become such an exciting field of current research and they highly deserve the EPS CMD Europhysics Prize 2016.

Publications relevant for this nomination

[1] U.K. Rössler, A.N. Bogdanov, C. Pfleiderer, Spontaneous Skyrmion Ground States in Magnetic Metals, Nature 442, 797 (2006).

[2] A.N. Bogdanov , D.A. Yablonskii, Thermodynamically Stable “Vortices” in Magnetically Ordered Crystals – The Mixed State of Magnets, Sov. Phys. JETP 68, 101 (1989).

[3] B. Binz, A. Vishwanath, V. Aji, Theory of the Helical Spin Crystal: A Candidate for the Partially Ordered State of MnSi, Phys. Rev. Lett. 96, 207202 (2006).

[4] A.Neubauer, C. Pfleiderer, B. Binz, A. Rosch, R. Ritz, P.G. Niklowitz, P. Böni, Topological Hall Effect in the A-Phase of MnSi, Phys. Rev. Lett. 102, 186602 (2009).

[5] S. Mühlbauer, B. Binz, F. Jonietz, C. Pfleiderer, A. Rosch, A. Neubauer, R. Georgii, P. Böni, Skyrmion Lattice in a Chiral Magnet, Science 323, 915 (2009).

[6] F. Jonietz, S. Mühlbauer, C. Pfleiderer, A. Neubauer, W. Münzer, A. Bauer, T. Adams, R. Georgii, P. Böni, R.A. Duine, K. Everschor, M. Garst, A. Rosch, Spin Transfer Torques in MnSi at Ultralow Current Densities, Science 330, 1648 (2010).

Tags:  2016  EPS CMD  EPS Condensed Matter Division  Europhysics Prize 2016  prize 

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Nominations for the EPS Liquid Matter Prize

Posted By Administration, Tuesday 17 May 2016

Dear Colleague, 

In 2017, the Liquids Section of the EPS Condensed Matter Division will award the European Physical Society’s Liquid Matter Prize. The prize will be awarded to a single person who has made outstanding contributions to the science of liquid matter in the experimental or theoretical area and who is still active in research.  The award may be given for pure or applied research. 

The prize will be awarded during the 10th Liquid Matter Conference to be held in Ljubljana, Slovenia, 17–21 July 2017. We would appreciate receiving your suggestions for deserving candidates. The nomination must include a short citation and a brief description of the main achievements of the candidate. 

Nominations should be sent by email to the Chair of the Prize Jury, Professor Igor Musevic, Jozef Stefan Institute, Slovenia, igor.musevic@ijs.si no later than 1 June 2016. 

With best regards, 

Igor Musevic
Chair of the Prize Jury and LMC 2017 conference

Tags:  call  Condensed Matter  EPS CMD  liquids  prize 

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CMD26 - abstract submission now open

Posted By Administration, Tuesday 29 March 2016

CMD26, to be held from 5-9 September 2016 in Groningen, the Netherlands, is now accepting submission of abstracts for oral and poster presentations. Please click http://cmd26.eu/abstract-submission/ for direct access to the CMD26 abstract submission page.

The deadline for abstract submission is 30 April 2016.

More info
Visit the website of the conference: CMD26
Follow the conference on Facebook

Tags:  conferences  EPS CMD 

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Call for nominations for the EPS CMD Europhysics Prize 2016

Posted By Administration, Wednesday 27 January 2016
Updated: Thursday 28 January 2016

Dear EPS members,
Dear EPS friends,

The EPS Condensed Matter Division Europhysics Prize for Outstanding Achievements in Condensed Matter Physics has been presented annually since 1975 by the European Physical Society, and has become one of the most prestigious awards for condensed matter physics in Europe.

The selection committee is pleased to request nominations for the 2016 EPS Condensed Matter Division Europhysics Prize. The prize laureates will receive a cash award, as well as an invitation to attend and present their work at the 26th Condensed Matter General Conference (CMD 26) that will take place in Groningen, the Netherlands, from September 5th through September 9th, 2016. 

The EPS Europhysics Prize is awarded in recognition of recent work by one or more individuals in the area of condensed matter physics, and, more specifically, work leading to advances in the fields of electronic, electrical, and materials engineering that, in the opinion of the Society's selection committee, is of particular scientific excellence and merit. Recent work is defined as work that has been completed within the 5 years prior to the award. The prize may be awarded for either pure or applied research, at the discretion of the Society.

Only complete nominations will be considered. For a nomination to be complete, it must include:

  • a complete CV
  • a publication list (5 pages maximum)
  • an indication of the three most relevant papers to the nomination
  • a description of the work justifying the nomination (2 pages maximum)
  • a suggested short citation

Nomination may be made online by using the nomination form that can be found here.

The deadline for the receipt of nominations is
 January 31st, 2016.

Nominations may also be made by email by sending all materials in a .zip file to d.lee@eps.org or by regular mail to the address below:

Europhysics Prize 2016
EPS
6, rue des Frères Lumière
68200 Mulhouse, France


Please keep your nomination confidential. Proposals will be acknowledged but not followed by any further correspondence.

On behalf of the selection committee and its chairman, I thank you in advance for helping us.

Yours sincerely,

David Lee
Secretary General
European Physical Society


More information
EPS CMD website
EPS CMD Prizes
EPS CMD Europhysics Prize charter
List of previous prize recipients


Tags:  call  Condensed Matter  EPS CMD  Europhysics Prize 2016 

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EPS CMD Europhysics Prize 2014 awarded

Posted By Administration, Friday 13 June 2014

The Condensed Matter Division of the European Physical Society is proud to announce the award of the 2014 European Physical Society Condensed Matter Division Europhysics Prize to:

Harold Y. Hwang, Jochen Mannhart and Jean-Marc Triscone

Citations and full biographies of the laureates can be found on the CMD website

Tags:  Condensed Matter  EPS CMD  Europhysics Prize 2014 

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