Dynamical Splayed Ferromagnetic Ground State in the Quantum Spin Ice Yb2Sn2O7
作者： A. Yaouanc , P. Dalmas de Réotier , P. Bonville , J. A. Hodges , V. Glazkov
DOI: 10.1103/PHYSREVLETT.110.127207
关键词:
摘要: From magnetic, specific heat, 170Yb Mossbauer effect, neutron diffraction, and muon spin relaxation measurements on polycrystalline Yb2Sn2O7, we show that below the first order transition at 0.15 K all of Yb3+ ions are long-range magnetically ordered each has a moment 1.1?B which lies ?10° to common fourfold cubic axis. The four sublattice moments have different directions away from this axis therefore noncoplanar. We term arrangement splayed ferromagnetism. This ground state dynamical component with fluctuation rate in megahertz range. net ferromagnetic exchange interaction an anisotropy favors local threefold discuss our results terms phase diagram proposed by Savary Balents [ Phys. Rev. Lett. 108 037202 (2012)] for pyrochlore lattice Kramers 1/2 effective spins.
archives-ouvertes.fr
harvard.edu
tudelft.nl
lib4ri.ch
hse.ru参考文章(38)
Pierre Dalmas de Reotier, Alain Yaouanc, Muon Spin Rotation, Relaxation, and Resonance: Applications to Condensed Matter ,(2011)
P. Dalmas de Réotier, A. Yaouanc, L. Keller, A. Cervellino, B. Roessli, C. Baines, A. Forget, C. Vaju, P. C. M. Gubbens, A. Amato, P. J. C. King, Spin dynamics and magnetic order in magnetically frustrated Tb2Sn2O7. Physical Review Letters. ,vol. 96, pp. 127202- ,(2006) , 10.1103/PHYSREVLETT.96.127202
Claudine Lacroix, Philippe Mendels, Frédéric Mila, Introduction to frustrated magnetism : materials, experiments, theory Introduction to Frustrated Magnetism: Materials, Experiments, Theory. ,vol. 164, ,(2011) , 10.1007/978-3-642-10589-0
D. R. Noakes, G. M. Kalvius, ANOMALOUS ZERO-FIELD MUON SPIN RELAXATION IN HIGHLY DISORDERED MAGNETS Physical Review B. ,vol. 56, pp. 2352- 2355 ,(1997) , 10.1103/PHYSREVB.56.2352
Jason S. Gardner, Michel J. P. Gingras, John E. Greedan, Magnetic Pyrochlore Oxides Reviews of Modern Physics. ,vol. 82, pp. 53- 107 ,(2010) , 10.1103/REVMODPHYS.82.53
M. J. Harris, S. T. Bramwell, D. F. McMorrow, T. Zeiske, K. W. Godfrey, Geometrical frustration in the ferromagnetic pyrochlore Ho 2 Ti 2 O 7 Physical Review Letters. ,vol. 79, pp. 2554- 2557 ,(1997) , 10.1103/PHYSREVLETT.79.2554
Michael Hermele, Matthew P. A. Fisher, Leon Balents, Pyrochlore photons: The U ( 1 ) spin liquid in a S = 1 2 three-dimensional frustrated magnet Physical Review B. ,vol. 69, pp. 064404- ,(2004) , 10.1103/PHYSREVB.69.064404
Hamid R. Molavian, Michel J. P. Gingras, Benjamin Canals, Dynamically induced frustration as a route to a quantum spin ice state in Tb2Ti2O7 via virtual crystal field excitations and quantum many-body effects. Physical Review Letters. ,vol. 98, pp. 157204- ,(2007) , 10.1103/PHYSREVLETT.98.157204
Leon Balents, Spin liquids in frustrated magnets Nature. ,vol. 464, pp. 199- 208 ,(2010) , 10.1038/NATURE08917
Lucile Savary, Leon Balents, Coulombic quantum liquids in spin-1/2 pyrochlores. Physical Review Letters. ,vol. 108, pp. 037202- ,(2012) , 10.1103/PHYSREVLETT.108.037202