arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0803.3975cond-mat.mtrl-sci
收藏

GaAs中亚表面Mn原子的STM图像:表面和杂质态杂化的证据

STM images of sub-surface Mn atoms in GaAs: evidence of hybridization of surface and impurity states

J. -M. Jancu, J. -Ch. Girard, M. Nestoklon, A. Lemaitre, F. Glas, Z. Z. Wang

摘要:

我们证明了亚表面Mn原子的扫描隧道显微镜(STM)图像是由杂质态与本征表面态的杂化形成的。它们不能用体杂质波函数成像来解释。使用低温装置获得的高原子分辨率的图像进行比较先进的,无参数的紧束缚模拟占两个屈曲(110)表面和真空电子特性。

英文摘要:

We prove that scanning tunneling microscopy (STM) images of sub-surface Mn atoms in GaAs are formed by hybridization of the impurity state with intrinsic surface states. They cannot be interpreted in terms of bulk-impurity wavefunction imaging. High atomic resolution images obtained using a low-temperature apparatus are compared with advanced, parameter-free tight-binding simulations accounting for both the buckled (110) surface and vacuum electronic properties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑