Direct estimation of zero-field energy gap in the nano-scale single molecular magnet V15
Direct estimation of zero-field energy gap in the nano-scale single molecular magnet V15
复制标题
纳米级单分子磁体V15中零场能隙的直接估计
DOI：
10.1016/j.jmmm.2006.10.313
复制
发表时间：
2007
影响因子：
2.7
通讯作者：
M. Luban
中科院分区：
文献类型：
--
作者：
Koichi Kajiyoshi;T. Kambe;M. Mino;H. Nojiri;P. Kögerler;M. Luban
对单分子磁体V15进行了低频（0.6 ~ 3GHz）和低温（~ 0.5K）的电子自旋共振（ESR）研究。在最低温度下的非线性场依赖性的共振意味着零场间隙的存在。共振场的角度依赖性具有很强的各向异性。我们直接估计零场能隙为30 mK，并使用Dzyaloshinskiii-Moriya相互作用模型分析能级。
The electron spin resonance (ESR) at low frequency (0.6–3 GHz) and at low temperature (∼ 0.5 K) was performed for the single molecular magnet V 15. Non-linear field dependence of resonance at the lowest temperature implies the existence of the zero-field gap. The angle dependence of resonance field has strong anisotropy. We directly estimate the zero-field energy gap of 30 mK and analyze the energy levels using the model with Dzyaloshinskii–Moriya interaction.