Bruno-Alfonso, A. [UNESP]Latge, A.2014-05-202014-05-202008-05-01Physical Review B. College Pk: Amer Physical Soc, v. 77, n. 20, p. 8, 2008.1098-0121http://hdl.handle.net/11449/42355The electronic states of quantum rings with centerlines of arbitrary shape and non-uniform width in a threading magnetic field are calculated. The solutions of the Schrodinger equation with Dirichlet boundary conditions are obtained by a variational separation of variables in curvilinear coordinates. We obtain a width profile that compensates for the main effects of the curvature variations in the centerline. Numerical results are shown for circular, elliptical, and limacon-shaped quantum rings. We also show that smooth and tiny variations in the width may strongly affect the Aharonov-Bohm oscillations.8engArtigo10.1103/PhysRevB.77.205303WOS:000256971800059Acesso abertoWOS000256971800059.pdf