| Full text | |
| Author(s): Show less - |
Jeffries, J. R.
;
Veiga, L. S. I.
;
Fabbris, G.
;
Haskel, D.
;
Huang, P.
;
Butch, N. P.
;
McCall, S. K.
;
Holliday, K.
;
Jenei, Z.
;
Xiao, Y.
;
Chow, P.
Total Authors: 11
|
| Document type: | Journal article |
| Source: | Physical Review B; v. 90, n. 10, p. 10-pg., 2014-09-08. |
| Abstract | |
The compound Sm2CO17 displays magnetic properties amenable to permanent magnet applications owing to both the 3d electrons of Co and the 4f electrons of Sm. The long-standing description of the magnetic interactions between the Sm and Co ions implies a truly ferromagnetic configuration, but some recent calculations challenge this axiom, suggesting at least a propensity for ferrimagnetic behavior. We have used high-pressure synchrotron x-ray techniques to characterize the magnetic and structural properties of Sm2Co17 to reveal a robust ferromagnetic state. The local Sm moment is at most weakly affected by compression, and the ordered moments show a surprising resilience to volumetric compressions of nearly 20%. Density functional theory calculations echo the magnetic robustness of Sm2Co17. (AU) | |
| FAPESP's process: | 13/14338-3 - Interplay between superconductivity and magnetism in systems under pressure and thin films |
| Grantee: | Larissa Sayuri Ishibe Veiga |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |