Magnetic Compton scattering studies of the Invar alloy Fe{sub 3}Pt
The magnetic Compton profiles (MCP) for both ordered and disordered Fe{sub 3}Pt samples have been measured above and below their Curie temperature. These measurements show that the average moment per atom at room temperature is 2.8{sub {mu}{sub B}} {plus_minus} 0.1{sub {mu}{sub B}} for disordered Fe{sub 3}Pt and 1.8{sub {mu}{sub B}} {plus_minus} 0.1{sub {mu}{sub B}} for ordered Fe{sub 3}Pt., At temperatures above {Tc}, we measured a substantial reduction in the moment (0.6{sub {mu}{sub B}} {plus_minus} 0.1{sub {mu}{sub B}} for disordered Fe{sub 3}Pt and 0.6{sub {mu}{sub B}} {plus_minus} 0.1{sub {mu}{sub B}} for ordered Fe{sub 3}Pt) and a change in the shape of the MCP. These results indicate a decrease of the d-like moment on the Fe atoms in the disordered phase. The MCP for the ordered phase shows a change in the total moment, yet the momentum distribution is substantially different and cannot be described by this analysis.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 84834
- Report Number(s):
- ANL/XFD/CP-83323; CONF-9411234-1; ON: DE95013385
- Resource Relation:
- Conference: Applications of synchrotron radiation techniques to materials science, Boston, MA (United States), 28 Nov - 2 Dec 1994; Other Information: PBD: Feb 1995
- Country of Publication:
- United States
- Language:
- English
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