Siegert, C and Ghosh, A and Pepper, M and Farrer, I and Ritchie, DA and Anderson, D and Jones, GAC (2008) Sensitivity of the magnetic state of a spin lattice on itinerant electron orbital phase. In: Physica E: Low-dimensional Systems and Nanostructures, 40 (5). pp. 1460-1463.
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Spatially extended localized spins can interact via indirect exchange interaction through Friedel oscillations in the Fermi sea. In arrays of localized spins such interaction can lead to a magnetically ordered phase. Without external magnetic field such a phase is well understood via a "two-impurity" Kondo model. Here we employ non-equilibrium transport spectroscopy to investigate the role of the orbital phase of conduction electrons on the magnetic state of a spin lattice. We show experimentally that even tiniest perpendicular magnetic field can influence the magnitude of the interspin magnetic exchange.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier. This article also appeared in the 17th International Conference on Electronic Properties of Two-Dimensional Systems.|
|Keywords:||Intrinsic spin lattice;2DEG;Spin interaction; Magnetic state;RKKY;Perpendicular magnetic field.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||08 Aug 2008|
|Last Modified:||19 Sep 2010 04:48|
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