NDLI: Magnetic-state control in a 3d dimer on a metallic substrate

Content Provider	Springer Nature Link
Author	Dudnik, M. G. Uzdin, V. M.
Copyright Year	2015
Abstract	The Alexander-Anderson model is used to investigate the magnetic states of a dimer composed of 3d-element atoms on a metallic substrate in the local mean-field approximation enabling the examination of noncollinear magnetic states. The magnetic moments localized near the dimer atoms are calculated self-consistently depending on the angle θ between them under the action of an external magnetic field. The dependence between the angle θ of the ground state and the number N of d electrons around the dimer atom is determined. The transition between the antiferromagnetic and ferromagnetic exchange interactions of the dimer magnetic moments is implemented with increasing N. The dimer ground state near the transition is noncollinear, cannot be described by the Heisenberg model, and is very sensitive to the influence of an external magnetic field. The interaction between 3d-dimer atoms and the substrate, gas adsorption, and external fields can vary the number of d electrons, making it possible to control magnetic states on an atomic scale.
Starting Page	540
Ending Page	545
Page Count	6
File Format	PDF
ISSN	10274510
Journal	Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques
Volume Number	9
Issue Number	3
e-ISSN	18197094
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-06-07
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	collective-electron magnetism Alexander-Anderson model magnetic dimer noncollinear magnetic ordering self-consistent calculations Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Surfaces, Coatings and Films

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