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- Tarasov, A, et al.
(författare)
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Quantized Magnetic Confinement in Quantum Wires
- 2010
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Ingår i: PHYSICAL REVIEW LETTERS. - : American Physical Society. - 0031-9007. ; 104:18, s. 186801-
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Tidskriftsartikel (refereegranskat)abstract
- Ballistic quantum wires are exposed to longitudinal profiles of perpendicular magnetic fields composed of a spike and a homogeneous part. An asymmetric magnetoconductance peak as a function of the homogeneous magnetic field is found, comprising quantized conductance steps in the interval where the homogeneous magnetic field and the magnetic barrier have identical polarities, and a characteristic shoulder with several resonances in the interval of opposite polarities. The observations are interpreted in terms of inhomogeneous diamagnetic shifts of the quantum wire modes leading to magnetic confinement.
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