Magnetism of adsorbed oxygen at low coverage

被引:6
作者
Altman, IS
Pikhitsa, PV
Kim, YJ
Choi, M [1 ]
机构
[1] Seoul Natl Univ, Sch Mech & Aerosp Engn, Inst Adv Machinery & Design, Natl CRI Ctr Nano Particle Control, Seoul 151742, South Korea
[2] Griffith Univ, Fac Environm Sci, Sch Environm Engn, Brisbane, Qld 4111, Australia
来源
PHYSICAL REVIEW B | 2003年 / 67卷 / 14期
关键词
D O I
10.1103/PhysRevB.67.144410
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report the magnetic measurement for oxygen adsorbed on different substrates at low coverage. An intriguing behavior of the oxygen magnetization against the applied magnetic field has been found. We demonstrate that it is an interplay between the substrate orientation of oxygen molecules and a weak antiferromagnetism of unit spins occurring via the substrate that shows such a behavior. The conclusion is made that the interaction of the oxygen molecules with the substrate (being neglected in previous work) plays a crucial role on the physical properties of the system.
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页数:6
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