Mr
Victor Porée
(Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland)
The search for spin liquid ground states in frustrated magnets has held a considerable place in condensed matter physics over the last decades as it represents a large playground for both theoreticians and experimentalists [1-3].
Quantum Spin Liquids (QSLs) have been and still are of particular interest as they evade long-range magnetic order down to zero temperature, being instead characterized by emergent gauge fields and fractionalized quasiparticle excitations [4-6].
The Ce2Sn2O7 pyrochlore stands as a serious candidate for the realization of a special type of QSL – the octupolar quantum spin ice [7].
Using macroscopic as well as microscopic probes, the dipolar-octupolar nature of the degrees of freedom was found. This led to substantial efforts aiming at isolating and characterizing the type of correlations developing below 1 Kelvin in Ce2Sn2O7, the results demonstrating that a quantum liquid of magnetic octupoles forms, in agreement with the octupolar quantum spin ice scenario.
[1] - J. Villain, Insulating Spin Glasses, Z. Physik B 33,31-42 (1979).
[2] - P.W. Anderson, The Resonating Valence Bond State in La2CuO4 and Superconductivity, Science, Vol. 235, Issue 4793, pp. 1196-1198 (1987) .
[3] - L. Balents, Spin Liquids in frustrated magnets, Nature volume 464, pages 199–208 (2010).
[4] - O. Benton & al., Seeing the light: Experimental signatures of emergent electromagnetism in a quantum spin ice, Physical Review B 86, 075154 (2012).
[5] - S. Lee & al., Generic quantum spin ice, Physical Review B 86, 104412 (2012).
[6] - M.J.P. Gingras and P.A. McClarty, Quantum spin ice: a search for gapless quantum spin liquids in pyrochlore magnets, Report on Progress in Physics. 77 056501 (2014).
[7] - R. Sibille & al., Candidate Quantum Spin Liquid in the Ce3+ Pyrochlore Stannate Ce2Sn2O7, Physical Review L 115, 097202 (2015).
Mr
Victor Porée
(Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland)
Dr
Nicolas Gauthier
(Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, California 94025, USA)
Dr
Elsa Lhotel
(Institut Néel, CNRS–Université Joseph Fourier, 38042 Grenoble, France)
Dr
Sylvain Petit
(LLB, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France)
Dr
Vladimir Pomjakushin
(Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland)
Dr
Jacques Ollivier
(Institut Laue-Langevin, CS 20156, F-38042 Grenoble Cedex 9, France)
Dr
Russell A. Ewings
(ISIS Pulsed Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK)
Dr
Toby G. Perring
(ISIS Pulsed Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK)
Dr
Clemens Ritter
(Institut Laue-Langevin, CS 20156, F-38042 Grenoble Cedex 9, France)
Dr
Thomas Hansen
(Institut Laue-Langevin, CS 20156, F-38042 Grenoble Cedex 9, France)
Dr
Andrew Wildes
(Institut Laue-Langevin, CS 20156, F-38042 Grenoble Cedex 9, France)
Dr
David A. Keen
(ISIS Pulsed Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK)
Dr
Gøran J. Nilsen
(ISIS Pulsed Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK)
Dr
Lukas Keller
(Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland)
Dr
Tom Fennell
(Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland)
Dr
Romain Sibille
(Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland)
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