by Farid El Gabaly, Silvia Gallego, Carmen Muñoz, Laszlo Szunyogh, Peter Weinberger, Christof Klein, Andreas K. Schmid, Kevin F. McCarty and Juan de la Figuera
Abstract:
By means of spin-polarized low-energy electron microscopy, we show that the magnetic easy axis of one to three atomic-layer thick cobalt films on Ru(0001) changes its orientation twice during deposition: One-monolayer and three-monolayer thick films are magnetized in plane, while two-monolayer films are magnetized out of plane. The Curie temperatures of films thicker than one monolayer are well above room temperature. Fully relativistic calculations based on the screened Korringa-Kohn-Rostoker method demonstrate that only for two-monolayer cobalt films does the interplay between strain, surface, and interface effects lead to perpendicular magnetization.
Reference:
Farid El Gabaly, Silvia Gallego, Carmen Muñoz, Laszlo Szunyogh, Peter Weinberger, Christof Klein, Andreas K. Schmid, Kevin F. McCarty and Juan de la Figuera, “Imaging Spin-Reorientation Transitions in Consecutive Atomic Co Layers on Ru(0001)”, Physical Review Letters, vol. 96, no. 14, pp. 147202.
Bibtex Entry:
@article{el_gabaly_imaging_2006,
	title = {Imaging {Spin}-{Reorientation} {Transitions} in {Consecutive} {Atomic} {Co} {Layers} on {Ru}(0001)},
	volume = {96},
	url = {https://link.aps.org/doi/10.1103/PhysRevLett.96.147202},
	doi = {10.1103/PhysRevLett.96.147202},
	abstract = {By means of spin-polarized low-energy electron microscopy, we show that the magnetic easy axis of one to three atomic-layer thick cobalt films on Ru(0001) changes its orientation twice during deposition: One-monolayer and three-monolayer thick films are magnetized in plane, while two-monolayer films are magnetized out of plane. The Curie temperatures of films thicker than one monolayer are well above room temperature. Fully relativistic calculations based on the screened Korringa-Kohn-Rostoker method demonstrate that only for two-monolayer cobalt films does the interplay between strain, surface, and interface effects lead to perpendicular magnetization.},
	number = {14},
	urldate = {2017-07-21},
	journal = {Physical Review Letters},
	author = {El Gabaly, Farid and Gallego, Silvia and Muñoz, Carmen and Szunyogh, Laszlo and Weinberger, Peter and Klein, Christof and Schmid, Andreas K. and McCarty, Kevin F. and de la Figuera, Juan},
	month = apr,
	year = {2006},
	pages = {147202},
	file = {APS Snapshot:E:\cmam_papers\files\510\PhysRevLett.96.html:text/html;APS Snapshot:E:\Usuarios\Administrator\Zotero\storage\Z3GKQIYA\PhysRevLett.96.html:text/html},
}