Magnetic anisotropy of Ni modified by extreme lattice expansion
| Autor: | M. Dietrich, K. Potzger, Mark J. Prandolini, William D. Brewer, P. Imielski, Y. Manzhur, H. H. Bertschat |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Materials science
Condensed matter physics Solid-state physics Field (physics) Magnetism chemistry.chemical_element Condensed Matter Physics Thermal expansion Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Nickel Magnetic anisotropy chemistry Ab initio quantum chemistry methods Hyperfine structure |
| Zdroj: | The European Physical Journal B. 46:535-540 |
| ISSN: | 1434-6036 1434-6028 |
| DOI: | 10.1140/epjb/e2005-00286-0 |
| Popis: | The induced magnetism of isolated (Cd) adatoms, soft-landed onto ultrathin Ni layers grown pseudo-morphologically on Pd(001) (aPd = 3.8907 A), was studied using the perturbed angular correlation (PAC) technique. The magnitude of the induced magnetic response (magnetic hyperfine field of |5.2| T) was found to be ca. 30% smaller than on bulk Ni (aNi = 3.524 A) surfaces. This result is compared to ab initio calculations. Additionally, the magnetic anisotropy of the induced response was found to be modified as compared to bulk Ni surfaces and the induced hyperfine field was observed to emerge from the plane at an angle of 50(5)○ to the surface normal. This canted magnetic anisotropy is attributed to the large lattice expansion of the ultrathin Ni film on Pd(001). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|