2013/05/09 by L. J. Chang, M. R. Lees, G. Balakrishnan +3
Chemistry · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Inorganic Fluorides and Related Compounds #Magnetic field #Magnetic moment #Magnetic monopole #Magnetization #Muon #Muon spin spectroscopy #Nuclear physics #Physics #Physics of Superconductivity and Magnetism #Precession #Relaxation (psychology) #Rotation (mathematics) #Spin (aerodynamics) #Spin ice #Superconductivity #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1038/srep01881
published as Scientific Reports 3, 1881 (2013) · 15 pages, 6 figures, to appear in Scientific Reports
arxiv created 2013/05/09 · openalex publication_date 2013/05/23 · arxiv updated 2013/05/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In the ground state of Ho2Ti2O7 spin ice, the disorder of the magnetic moments follows the same rules as the proton disorder in water ice. Excitations take the form of magnetic monopoles that interact via a magnetic Coulomb interaction. Muon spin rotation has been used to probe the low-temperature magnetic behaviour in single crystal Ho2-xYxTi2O7 (x = 0, 0.1, 1, 1.6 and 2). At very low temperatures, a linear field dependence for the relaxation rate of the muon precession λ(B), that in some previous experiments on Dy2Ti2O7 spin ice has been associated with monopole currents, is observed in samples with x = 0, and 0.1. A signal from the magnetic fields penetrating into the silver sample plate due to the magnetization of the crystals is observed for all the samples containing Ho allowing us to study the unusual magnetic dynamics of Y doped spin ice.