Magnetic Quantum Dots Steer and Detach Microtubules From Kinesin‐Coated Surfaces

Magnetic Semiconductor Quantum Dots

Cdo.5Mno.5S diluted magnetic semiconductor (DMS) quantum dots (QDs) of crystallite size ranging from 24 A to the bulk have been chemically synthesized using an aqueous solution precipitation method and thermal annealing. Subsequent characterization indicates that the "as prepared" material is of the cubic zinc blende structure which evolves with increasing size to the bulk hexagonal wurtzite st...

Spin Polarized Current Generation from Quantum Dots without Magnetic Fields

Rectangular quantum dots in high magnetic fields

Rights: © 2004 American Physical Society (APS). This is the accepted version of the following article: Räsänen, E. & Harju, A. & Puska, M. J. & Nieminen, Risto M. 2004. Rectangular quantum dots in high magnetic fields. Physical Review B. Volume 69, Issue 16. 165309/1-5. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.69.165309, which has been published in final form at http://journals.aps.or...

Magnetic response of disordered ballistic quantum dots.

The weak field average magnetic susceptibility of square shaped mesoscopic conductors is studied within a semiclassical framework. Long semiclassical trajectories are strongly affected by static disorder and differ sharply from those of clean systems. They give rise to a large linear paramagnetic susceptibility which is disorder independent and in agreement with recent experiments. The crossove...

Conductance in quantum wires by three quantum dots arrays

A noninteracting quantum-dot arrays side coupled to a quantum wire is studied. Transport through the quantum wire is investigated by using a noninteracting Anderson tunneling Hamiltonian. The conductance at zero temperature develops an oscillating band with resonances and antiresonances due to constructive and destructive interference in the ballistic channel, respectively. Moreover, we have fo...