LOW-TEMPERATURE MAGNETIC REMANENCE, MOLECULAR FIELD, AND APPROACH TO SATURATION OF HOLMIUM METAL
Journal Article
·
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
Magnetization approaching absolute magnetic saturation was achieved for polycrystalline holmium metal. At 1.3 ction prod- K and 70.000 gauss, the magnetic moment is approaching 4.0 Bohr magnetons per atom of holmium in contrast to the 10 Bohr magnetons per atom expected on the basis of the spectroscopically determined quantum numbers. The actual results are explained on the basis of crystalline electric field splitting of the ground term of holmium and application of the Pauli exclusion principle. In the liquid belium range, there is a pronounced hysteresis; i.e., the moment at 10,000 gauss is 50% higher in decreasing fields than in increasing fields. The remanence is 0.22 Bohr magneton per atom of holmium at 4.2 ction prod- K and 0.42 Bohr magneton per atom at 1.3 ction prod- K. A sample motion technique was used to measure the magnetic moment of the 5-gram sample. The equipment was calibrated with iron and nickel. (auth)
- Research Organization:
- U.S. Naval Research Lab., Washington, D.C.
- NSA Number:
- NSA-14-010841
- OSTI ID:
- 4185235
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 117; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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