TY  - JOUR
AB  - We measured the temperature dependence of the current and spin polarization, and determined the work functions from Fowler-Nordheim plots. The current increases exponentially with decreasing temperature. Work-function data can be related directly to the height of the internal W-EuS barrier. This barrier is lowered by magnetic splitting of the EuS conduction band for one electron-spin state which should lead to a spin polarization of unity. The measured spin polarization, however, is equal to the polarization of the 4f to the power of 7 electrons of europium.
DA  - 1976
DO  - 10.1103/PhysRevLett.36.982
LA  - eng
IS  - 16
M2  - 982
PY  - 1976
SN  - 0031-9007
SP  - 982-985
T2  - Phys.Rev.Lett.
TI  - Conduction-band tunneling and electron-spin polarization in field emission from magnetically ordered europium sulfide on tungsten
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-17757730
Y2  - 2024-11-24T12:49:25
ER  -