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- Title
XMCD study of the local magnetic and structural properties of microcrystalline NdFeB-based alloys.
- Authors
Menushenkov, A.; Ivanov, V.; Shchetinin, I.; Zhukov, D.; Menushenkov, V.; Rudnev, I.; Ivanov, A.; Wilhelm, F.; Rogalev, A.; Savchenko, A.
- Abstract
X-ray Magnetic Circular Dichroism (XMCD) technique was used to investigate local magnetic properties of microcrystalline NdZrFeB samples, oriented along either easy or hard magnetization direction. The Nd L and Fe K edge XMCD spectra were measured at room temperature under a magnetic field of T. A very strong dependence of XMCD spectra on the sample orientation has been observed at the Nd L -edges, whereas the Fe K-edge XMCD spectra are found to be practically isotropic. This result indicates that magnetic anisotropy of NdFeB-based alloys originates from the Nd sublattice. In addition, element selective magnetization curves have been recorded by measuring the intensity of XMCD signals as a function of an applied magnetic field up to T. To find a correlation between local and macroscopic magnetic properties of studied samples we compared these data with magnetization curves, measured by vibrating sample magnetometer up to T. Results are important for understanding the origin of high-coercivity state in NdFeB-based intermetallic compounds.
- Subjects
MAGNETIC circular dichroism; MAGNETIC properties of intermetallic compounds; MAGNETIZATION; ZIRCONIUM alloys; MAGNETIC anisotropy; X-ray spectra
- Publication
JETP Letters, 2017, Vol 105, Issue 1, p38
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364017010039