TY - JOUR
T1 - Highly spin-polarized field emissions induced by quantum size effects in ultrathin films of Fe on W(001)
AU - Li, Bin
AU - Leung, T. C.
AU - Chan, C. T.
PY - 2006
Y1 - 2006
N2 - Spin-polarized field emissions from Fe pseudomorphic ultrathin films on W(001) surfaces are studied by density functional calculations. We found that nearly completely spin-polarized field emission currents can be realized in two and four Fe layers on W(001) and that these systems have the additional advantages of thermal stability and low work functions. The unusually high spin polarizations of the field emission current is traced to the Fe film's quantum size effects leading to spin-polarized quantum well states and surface resonance states.
AB - Spin-polarized field emissions from Fe pseudomorphic ultrathin films on W(001) surfaces are studied by density functional calculations. We found that nearly completely spin-polarized field emission currents can be realized in two and four Fe layers on W(001) and that these systems have the additional advantages of thermal stability and low work functions. The unusually high spin polarizations of the field emission current is traced to the Fe film's quantum size effects leading to spin-polarized quantum well states and surface resonance states.
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000240043800047
UR - https://openalex.org/W2082242750
UR - https://www.scopus.com/pages/publications/33747739506
U2 - 10.1103/PhysRevLett.97.087201
DO - 10.1103/PhysRevLett.97.087201
M3 - Journal Article
SN - 0031-9007
VL - 97
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
M1 - 087201
ER -