Lin, Qiong-Gui; Hu, Xin-Jian - In: The European Physical Journal B - Condensed Matter and … 56 (2007) 3, pp. 235-241
We study the influence of a contact (or delta) potential on the Aharonov-Bohm scattering of nonrelativistic particles. In general the contact potential has no effect on the scattering as expected. However, when the magnetic flux and the strength of the contact potential take some special values,...