Energy-gap driven low-temperature magnetic and transport properties in Cr$_{1/3}M$S$_2$ ($M$ = Nb or Ta)
ArXiv 2105.01393 (2021)
Megahertz dynamics in skyrmion systems probed with muon-spin relaxation
ArXiv 2011.1033 (2020)
Magnetic order and ballistic spin transport in a sine-Gordon spin chain
(2020)
Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)] n (Ln = Sm, La) using implanted muons
Journal of Physics: Condensed Matter IOP Publishing 31:39 (2019) 394002
Abstract:
We present the results of muon-spin relaxation ([Formula: see text]SR) measurements on antiferromagnetic and ferromagnetic spin chains. In antiferromagnetic CuF2(pyz) we identify a transition to long range magnetic order taking place at [Formula: see text] K, allowing us to estimate a ratio with the intrachain exchange of [Formula: see text] and the ratio of interchain to intrachain exchange coupling as [Formula: see text]. The ferromagnetic chain [Sm(hfac)3(boaDTDA)] n undergoes an ordering transition at [Formula: see text] K, seen via a broad freezing of dynamic fluctuations on the muon (microsecond) timescale and implying [Formula: see text]. The ordered radical moment continues to fluctuate on this timescale down to 0.3 K, while the Sm moments remain disordered. In contrast, the radical spins in [La(hfac)3(boaDTDA)] n remain magnetically disordered down to T = 0.1 K suggesting [Formula: see text].Local magnetism, magnetic order and spin freezing in the 'nonmetallic metal' FeCrAs
Journal of Physics: Condensed Matter IOP Publishing 31:28 (2019) 285803