TY - JOUR
KW - Carbon dioxide
KW - Manganese
KW - X-ray Diffraction
KW - Spin polarization
KW - Cobalt
KW - Spin dynamics
KW - Germanium
KW - Heusler
KW - Anomalous X-ray diffraction
KW - Antisite disorder
KW - Atomic disorder
KW - Band theory
KW - Conduction electrons
KW - Half metallic ferromagnets
KW - Half metals
KW - Heusler alloys
KW - High precision
KW - Spin state
KW - Structural defect
KW - Sub-lattices
AU - B Ravel
AU - J.O Cross
AU - M.P Raphael
AU - V.G Harris
AU - Ramamoorthy Ramesh
AU - L.V Saraf
AB - Heusler alloys Co 2MnX, where X is Ge or Si, are predicted by the band theory to be a half-metallic ferromagnets, i.e., metals with all conduction electrons of the same spin state. To date, Heusler alloys have been measured with spin polarizations of 50%-60%, higher than Fe (∼40%), but not a true half metal. Structural defects involving site swapping between the Co and Mn sublattices have been proposed as a mechanism to diminish spin polarization. In this work, we present an anomalous x-ray diffraction measurement on Co 2MnGe to determine antisite disorder in thin films with a high precision. © 2002 American Institute of Physics. © 2002 American Institute of Physics.
BT - Applied Physics Letters
DO - 10.1063/1.1513216
LA - eng
M1 - 15
N1 - cited By 84
N2 - Heusler alloys Co 2MnX, where X is Ge or Si, are predicted by the band theory to be a half-metallic ferromagnets, i.e., metals with all conduction electrons of the same spin state. To date, Heusler alloys have been measured with spin polarizations of 50%-60%, higher than Fe (∼40%), but not a true half metal. Structural defects involving site swapping between the Co and Mn sublattices have been proposed as a mechanism to diminish spin polarization. In this work, we present an anomalous x-ray diffraction measurement on Co 2MnGe to determine antisite disorder in thin films with a high precision. © 2002 American Institute of Physics. © 2002 American Institute of Physics.
PY - 2002
SP - 2812
EP - 2814
T2 - Applied Physics Letters
TI - Atomic disorder in Heusler Co 2MnGe measured by anomalous x-ray diffraction
VL - 81
SN - 00036951
ER -