Possible persistent current in a ring made of the perfect crystalline insulator
نویسندگان
چکیده
منابع مشابه
Persistent Mobile Lattice Excitations in a Crystalline Insulator
We examine tracks in crystals of muscovite of high energy charged particles, and of mobile lattice excitations created by kinetic atomic scattering. The mobile lattice excitations are interpreted as a type of breather, here called a quodon. The typical energy of a quodon can be found from the decay of potassium K atoms in the crystal and supports their interpretation as a type of breather. In t...
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We describe a ”train” effect which may exist in small metallic and semiconductor rings and might be associated with the long-standing problem of the persistent current enhancement. The current is associated with the cooperative motion of N electrons constituing the N -electron ”train”. The train arises via an excitation or a backflow of spin waves or of interchannel charge density sound modes. ...
متن کاملTopological effects on magnitude of persistent current in a ring
We show that defects in 1D rings decrease the conductance (when the ring is opened up) many more times than it decreases the persistent currents. This means that the states in such a 1D ring are very sensitive to twisting of boundary condition but conductance of the system is small. In 1D the electron effectively sees a periodic potential and escapes localization. This does not happen in higher...
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ژورنال
عنوان ژورنال: Physica E: Low-dimensional Systems and Nanostructures
سال: 2008
ISSN: 1386-9477
DOI: 10.1016/j.physe.2007.09.042