Department of Chemistry "U. Schiff" - Università degli Studi di Firenze and INSTM UdR Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland.
Chem Commun (Camb). 2018 Jul 10;54(56):7826-7829. doi: 10.1039/c8cc04703k.
Muon spin relaxation (μSR) experiments on a single-molecule magnet enriched in different Dy isotopes detect unambiguously the slowing down of the zero field spin dynamics for the non-magnetic isotope. This occurs in the low temperature regime dominated by quantum tunnelling, in agreement with previous ac susceptibility investigations. In contrast to the latter, however, μSR is sensitive to all fluctuation modes affecting the lifetime of the spin levels.
对富含不同钆同位素的单分子磁体进行的μSR 实验明确探测到非磁性同位素的零场自旋动力学的减缓。这发生在由量子隧穿主导的低温 regime 中，与先前的交流磁化率研究结果一致。然而，与后者不同的是，μSR 对影响自旋能级寿命的所有波动模式都敏感。
