论文标题
通过氢原子吸附对单个磁分子的可逆单自旋控制
Reversible Single Spin Control of Individual Magnetic Molecule by Hydrogen Atom Adsorption
论文作者
论文摘要
对单个旋转或分子的单个自旋的可逆控制在北极物理学和基于自旋的电子中的潜在应用非常感兴趣。在这里，我们证明，通过AU（111）在AU（111）上，锰苯烷氨酸分子的肿瘤共振已通过摩尔型和与单一的固定型进行了稳健的途径。正如密度功能理论计算进一步揭示的那样，即使在此过程中Mn离子的电子总数几乎保持不变，获得一个单个氢原子会导致3D轨道内的电荷重新分布，而分子旋转状态从s = 3/2降低到S = 1的s = 1直接有助于kondo resonance resonance消失。该过程通过局部电压脉冲或热退火来颠倒，以解剖氢原子。
The reversible control of a single spin of an atom or a molecule is of great interest in Kondo physics and a potential application in spin based electronics.Here we demonstrate that the Kondo resonance of manganese phthalocyanine molecules on an Au(111) substrate have been reversibly switched off and on via a robust route through attachment and detachment of single hydrogen atom to the magnetic core of the molecule. As further revealed by density functional theory calculations, even though the total number of electrons of the Mn ion remains almost the same in the process, gaining one single hydrogen atom leads to redistribution of charges within 3d orbitals with a reduction of the molecular spin state from S = 3/2 to S = 1 that directly contributes to the Kondo resonance disappearance. This process is reversed by a local voltage pulse or thermal annealing to desorb the hydrogen atom.
