Artículos de revistas
Two-Dimensional Magnetic Correlations and Partial Long-Range Order in Geometrically Frustrated Sr2YRuO6
Registro en:
Physical Review Letters. Amer Physical Soc, v. 110, n. 1, 2013.
0031-9007
WOS:000313028500015
10.1103/PhysRevLett.110.017202
Autor
Granado, E
Lynn, JW
Jardim, RF
Torikachvili, MS
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Neutron diffraction on the double perovskite Sr2YRuO6 with a quasi-fcc lattice of Ru moments reveals planar magnetic correlations that condense into a partial long-range ordered state with coupled alternate antiferromagnetic (AFM) YRuO4 square layers coexisting with the short-range correlations below T-N1 = 32 K. A second transition to a fully ordered AFM state below T-N2 = 24 K is observed. The reduced dimensionality of the spin correlations is arguably due to a cancellation of the magnetic coupling between consecutive AFM square layers in fcc antiferromagnets, which is the simplest three-dimensional frustrated magnet model system. DOI: 10.1103/PhysRevLett.110.017202 110 1 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) NSF, U.S. [DMR-0805335] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) NSF, U.S. [DMR-0805335]