| Title | Origin of the spin reorientation transitions in (Fe1-xCox)(2)B alloys |
| Publication Type | Journal Article |
| Year of Publication | 2015 |
| Authors | Belashchenko, KD, Ke, LQ, Dane, M, Benedict, LX, Lamichhane, TN, Taufour, V, Jesche, A, Bud'ko, SL, Canfield, PC, Antropov, VP |
| Journal | Applied Physics Letters |
| Volume | 106 |
| Pagination | 062408 |
| Date Published | 02 |
| Type of Article | Article |
| ISBN Number | 0003-6951 |
| Accession Number | WOS:000349845300048 |
| Keywords | Borides, magnetocrystalline anisotropy |
| Abstract | Low-temperature measurements of the magnetocrystalline anisotropy energy K in (Fe1-xCox)(2)B alloys are reported, and the origin of this anisotropy is elucidated using a first-principles electronic structure analysis. The calculated concentration dependence K(x) with a maximum near x = 0.3 and a minimum near x = 0.8 is in excellent agreement with experiment. This dependence is traced down to spin-orbital selection rules and the filling of electronic bands with increasing electronic concentration. At the optimal Co concentration, K depends strongly on the tetragonality and doubles under a modest 3% increase of the c/a ratio, suggesting that the magnetocrystalline anisotropy can be further enhanced using epitaxial or chemical strain. (C) 2015 AIP Publishing LLC. |
| DOI | 10.1063/1.4908056 |
| Custom 1 | CMI |
| Custom 2 | Complex States |
