2006/10/31 by T. Lancaster, S. J. Blundell, Daniel Andreica +12 · 30 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Frustration #Hydrostatic pressure #Magnetic and transport properties of perovskites and related materials #Magnetism #Materials science #Multiferroics and related materials #Muon spin spectroscopy #Order (exchange) #Physics #Relaxation (psychology) #Spin (aerodynamics) #Spin glass #Spins #Thermodynamics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.98.197203
published in Physical Review Letters 98(19), 197203 (American Physical Society) · 4 pages, 3 figures, v2 (updated figures and minor changes to text)
arxiv created 2007/04/16 · openalex publication_date 2007/05/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The ferroelectromagnet YMnO3 consists of weakly coupled triangular layers of S=2 spins. Below T(N) approximately equal to 70 K muon-spin relaxation data show two oscillatory relaxing signals due to magnetic order, with no purely relaxing signals resolvable (which would require different coexisting spin distributions). The transition temperature T(N) increases with applied hydrostatic pressure, even though the ordered moment decreases. These results suggest that pressure increases both the exchange coupling between the layers and the frustration within the layers.