基于Cr的磁性团簇Cr$_{7}$Ni的磁化与自旋动力学
材料科学
2008-08-20 v1
摘要
我们研究了CrNi环状磁性团簇的磁化与自旋动力学。在高脉冲场和低温下测量的磁化强度与计算结果进行了比较，表明自旋哈密顿量方法能很好地描述CrNi磁性分子。此外，还研究了声子诱导的分子可观测量弛豫动力学。通过假设自旋-声子耦合通过局域晶场调制发生，可以评估两个一般分子可观测量的涨落衰减。核自旋-晶格弛豫率直接探测了这种涨落，并允许确定磁弹耦合强度。
引用
@article{arxiv.0808.2621,
title = {Magnetization and spin dynamics of a Cr-based magnetic cluster: Cr$_{7}$Ni},
author = {A. Bianchi and S. Carretta and P. Santini and G. Amoretti and Y. Furukawa and K. Kiuchi and Y. Ajiro and Y. Narumi and K. Kindo and J. Lago and E. Micotti and P. Arosio and A. Lascialfari and F. Borsa and G. Timco and R. E. P. Winpenny},
journal= {arXiv preprint arXiv:0808.2621},
year = {2008}
}
备注
3 pages, 2 figures, submitted as a contributed article for the Jems conference in Dublin (September 14-19 2008)