2 papers
cond-mat.mtrl-sci2018
On the Emergence of Topologically Protected Boundary States in Topological/Normal Insulator Heterostructures
M. Costa, A. T. Costa, Walter A. Freitas +3
We have performed a systematic investigation of the formation of topologically protected boundary states (TPBS) in topological/normal insulators (TI/NI) heterostructures. Using a r…
cond-mat.str-el2004
Heisenberg spins on a cone: an interplay between geometry and magnetism
W. A. Freitas, W. A. Moura-Melo, A. R. Pereira
This work is devoted to the study of how spin texture excitations are affected by the presence of a static nonmagnetic impurity whenever they lie on a conical support. We realize a…