Structural and Magnetic Properties of Ultrathin Fe Films on Pt(001) Surface
ZHANG Li-Juan, HE Ke, JIA Jin-Feng, XUE Qi-Kun
State Key Laboratory for Surface Physics and International Centre for Quantum Structures, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
Structural and Magnetic Properties of Ultrathin Fe Films on Pt(001) Surface
ZHANG Li-Juan;HE Ke;JIA Jin-Feng;XUE Qi-Kun
State Key Laboratory for Surface Physics and International Centre for Quantum Structures, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
Abstract： Magnetic anisotropy evolution of ultrathin Fe films grown on Pt(001) single-crystal surface is investigated by UHV in situ surface magneto-optical Kerr effect (SMOKE) measurement. After annealing at ～600K, the magnetic anisotropy of Fe film switches from in-plane to perpendicular at low coverage, leading to a spin reorientation transition (SRT). Meanwhile, in the range of 3--4 monolayer (ML) thickness, the coercivity of the Fe polar hysteresis loop decreases dramatically. Further scanning tunnelling microscopy (STM) and low energy electron diffraction (LEED) investigation correlates the magnetic properties with the film structures. We attribute this SRT to the formation of Fe--Pt ordered alloy.
ZHANG Li-Juan;HE Ke;JIA Jin-Feng;XUE Qi-Kun. Structural and Magnetic Properties of Ultrathin Fe Films on Pt(001) Surface[J]. 中国物理快报, 2005, 22(1): 203-206.
ZHANG Li-Juan, HE Ke, JIA Jin-Feng, XUE Qi-Kun. Structural and Magnetic Properties of Ultrathin Fe Films on Pt(001) Surface. Chin. Phys. Lett., 2005, 22(1): 203-206.
2005, Vol. 22 
