The effect of Er doping on the spin reorientation transition in Ho(1-x)Er(x)Al(2)
| Title | The effect of Er doping on the spin reorientation transition in Ho(1-x)Er(x)Al(2) |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Authors | Khan M, Gschneidner KA, Pecharsky VK |
| Journal Title | Journal of Magnetism and Magnetic Materials |
| Volume | 324 |
| Pages | 1381-1384 |
| Date Published | 04 |
| Type of Article | Article |
| ISBN Number | 0304-8853 |
| Accession Number | WOS:000299010100021 |
| Keywords | C15, EXCHANGE, field, heat, hoal2, Lanthanide material, laves-phase compound, magnetic anisotropy, MAGNETIC-ANISOTROPY, magnetocrystalline anisotropy, SINGLE-CRYSTAL, Spin reorientation, tbal2 |
| Abstract | The magnetothermal properties of pseudo binary Ho(1-x)Er(x)Al(2) alloys have been investigated by heat capacity measurements. Two anomalies are observed in the heat capacity of HoAl(2). A sharp peak at 20 K represents the first order spin reorientation transition, and a second order anomaly occurs in the vicinity of the ferromagnetic transition at 32 K. As Ho is partially replaced by Er in Ho(1-x)Er(x)Al(2) the sharpness of the first order heat capacity peak diminishes with increasing Er concentration, while the temperature of this transition remains practically unaffected. The second order ferromagnetic transition shifts to higher temperature region with increasing Er concentration. The observed behaviors are explained considering the geometry of 4f charge densities of Ho(3+) and Er(3+) and the easy magnetization directions of HoAl(2) and ErAl(2). (C) 2011 Elsevier B.V. All rights reserved. |
| URL | <Go to ISI>://WOS:000299010100021 |
| DOI | 10.1016/j.jmmm.2011.11.045 |
| Alternate Journal | J. Magn. Magn. Mater. |
