Effect of adsorbates on the formation of doubly excited He atoms during impact of He2+ ions on a Ni(110) surface

Busch, M.; Wethekam, S.; Winter, H.

doi:10.1016/j.nimb.2009.05.053

Cited by 2 publications

(1 citation statement)

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“…The calculated results are consistent with other calculated and experimental results. [24][25][26] As can also be seen in Table 1, the values of magnetic moments M Sur for three surfaces follow the change trend of M Sur(111) < M Sur(100) < M Sur(110) . It is well-recognized that, on a 3d transition metal surface, the magnetic moment enhancement comes from the reduced number of nearest neighbors and weaker interatomic hybridization.…”

Section: Resultsmentioning

confidence: 64%

Spin and surface orientation effects of work function forCr/Ni(111),Cr/Ni(100) andCr/Ni(110) metal gates

Zhong

Cheng

et al. 2014

Int. J. Mod. Phys. B

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Work functions of Cr/Ni(111), Cr/Ni(100) and Cr/Ni(110) surfaces with different magnetic configurations for Cr atoms in the topmost Cr monolayer are investigated using first-principles methods based on density functional theory. The calculated results reveal that work functions vary with crystal orientations and magnetic configurations. The magnitude of the Cr magnetic moments for the three (111), (100) and (110) surfaces follows a change trend with M Cr,Cr/Ni(111) < M Cr,Cr/Ni(100) < M Cr,Cr/Ni(110) . Altering the magnetic configurations of the systems from an original ground state to an excited one will have the total energy and the Fermi level increase. Consequently, it will give rise to the reduction of the work function for the system. Moreover, the quite favorable variation range (4.92-4.41 eV) of the calculated work functions for Cr/Ni(100) system modulated by spin effect implies that the Cr/Ni(100) system may be a more promising candidate. Our work suggests that changing magnetic configurations can modulate the work functions of magnetic metal gates well.

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Section: Resultsmentioning

confidence: 64%