Polarized Epithermal Neutron Studies of Magnetic Domains
Journal Article
·
· Application of Accelerators in Research and Industry
The average size and shape of magnetic domains in a material can be determined from the precession of polarized neutrons traversing the material. Epithermal neutrons (0.5eV<En<100eV), which process more slowly than thermals, effectively probe the internal structure of samples that are thick or have large domains or large internal fields. Such epithermal neutron measurements require a neutron polarizer and analyzer based on cryogenically polarized spin filters. We discuss the measurements at JINR, Dubna, of magnetic domains in a 2.0 cm. diam. crystal of holmium using 1.7 to 59eV neutrons polarized by a dynamically polarized proton target and analyzed with a statically polarized dysprosium target.
- Research Organization:
- Triangle Universities Nuclear Laboratory (TUNL) and (NCSU)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- FG02-97ER41042
- OSTI ID:
- 774290
- Report Number(s):
- ER41042; TRN: US0701755
- Journal Information:
- Application of Accelerators in Research and Industry, Vol. CP392
- Country of Publication:
- United States
- Language:
- English
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