TY - JOUR
T1 - Oxygen adsorption and magnetic properties of ultrathin Co/Ir(111) films
AU - Ho, Huei Ying
AU - Tsay, Jyh Shen
AU - Chen, Yu Shan
PY - 2010/7
Y1 - 2010/7
N2 - During oxygen exposure to ultrathin Co/Ir(111) films, both the oxidative process and physical adsorption occur. The diffusion length of oxygen is around two monolayers of Co. Within this thickness, Co films are almost oxidative and ferromagnetism disappears. For thicker films with nanometer thickness, after completing the oxidative process at the beginning of oxygen exposure, the physical adsorption becomes a major process. By controlling the amount of further exposure to oxygen, the coercive force in the polar configuration can be adjusted while keeping the Kerr rotation at a nearly constant value.
AB - During oxygen exposure to ultrathin Co/Ir(111) films, both the oxidative process and physical adsorption occur. The diffusion length of oxygen is around two monolayers of Co. Within this thickness, Co films are almost oxidative and ferromagnetism disappears. For thicker films with nanometer thickness, after completing the oxidative process at the beginning of oxygen exposure, the physical adsorption becomes a major process. By controlling the amount of further exposure to oxygen, the coercive force in the polar configuration can be adjusted while keeping the Kerr rotation at a nearly constant value.
UR - http://www.scopus.com/inward/record.url?scp=77956533096&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956533096&partnerID=8YFLogxK
U2 - 10.1143/JJAP.49.075802
DO - 10.1143/JJAP.49.075802
M3 - Article
AN - SCOPUS:77956533096
SN - 0021-4922
VL - 49
SP - 758021
EP - 758024
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 7 PART 1
ER -