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Non-free-electron momentum- and thickness-dependent evolution ofquantum well states in the Cu/Co/Cu(001) system

Journal Article · · Physical Review B
OSTI ID:889305
We present systematic k{sub {parallel}}-dependent measurements of the Fermi surface and underlying band structure of quantum well states in Cu/Co/Cu(001). Compared to bands from normal emission, we find a complicated evolution of ''split'' QW states as a function of the thicknesses of both the copper overlayer and the cobalt barrier layer. Self-consistent calculations show that the penetration of the quantum well states into the cobalt barrier layer is significant and leads to the observed very non-free-electron behavior of these states.
Research Organization:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development; NationalScience Foundation
DOE Contract Number:
AC02-05CH11231
OSTI ID:
889305
Report Number(s):
LBNL--57817
Journal Information:
Physical Review B, Journal Name: Physical Review B Vol. 73
Country of Publication:
United States
Language:
English

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