New magnetic configuration in paramagnetic phase of HoCo2
| Title | New magnetic configuration in paramagnetic phase of HoCo2 |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Authors | Bonilla CM, Calvo I, Herrero-Albillos J, Figueroa AI, Castan-Guerrero C, Bartolome J, Rodriguez-Velamazan JA, Schmitz D, Weschke E, Paudyal D, Pecharsky VK, Gschneidner KA, Bartolome F, Garcia LM |
| Journal Title | Journal of Applied Physics |
| Volume | 111 |
| Pages | 07e315 |
| Date Published | 04 |
| Type of Article | Article |
| ISBN Number | 0021-8979 |
| Accession Number | WOS:000303282401278 |
| Keywords | rco2 |
| Abstract | X-ray magnetic circular dichroism (XMCD) measurements on HoCo2 reveal the inversion of Co moment at temperatures higher than the critical temperature, T-c, showing that the net magnetization under a field of the Ho and Co sublattices remain antiparallel even above T-c. The Ho moment also changes its orientation to align antiparallel to the applied field at high temperature giving rise to a new magnetic configuration in the paramagnetic regime. Transverse susceptibility (TS) and small angle neutron scattering (SANS) measurements performed above T-c indicate the existence of sizable magnetic short-range correlated regions in HoCo2. First principles calculations based on spin polarized local-density approximation, LSDA+U have been performed to obtain insights on the origin of the short-range correlated volume. (C) 2012 American Institute of Physics. [doi:10.1063/1.3672258] |
| URL | <Go to ISI>://WOS:000303282401278 |
| DOI | 10.1063/1.3672258 |
| Alternate Journal | J. Appl. Phys. |
