Current-flux characteristics in mesoscopic non-superconducting rings.
نویسندگان
چکیده
We propose four different mechanisms responsible for the paramagnetic or diamagnetic persistent currents in normal metal rings and determine the circumstances for changes of the current from paramagnetic to diamagnetic and vice versa. This might qualitatively reproduce the experimental results of Bluhm et al (2009 Phys. Rev. Lett. 102 136802).
منابع مشابه
Persistent current in one-dimensional non-superconducting mesoscopic rings: effects of single hopping impurity, in-plane electric field and foreign atoms
Persistent current in one-dimensional non-superconducting mesoscopic rings threaded by a slowly varying magnetic flux φ is studied based on the tight-binding model. The behavior of the persistent current is discussed in three aspects: (a) single hopping impurity, (b) in-plane electric field and (c) in presence of some foreign atoms. PACS No.: 73.23.-b; 73.23.Ra; 73.63.Nm
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عنوان ژورنال:
- Journal of physics. Condensed matter : an Institute of Physics journal
دوره 22 42 شماره
صفحات -
تاریخ انتشار 2010