About the Authors

Luiz G. A. Alves

Affiliations Departamento de Física, Universidade Estadual de Maringá, Maringá, PR 87020-900, Brazil, National Institute of Science and Technology for Complex Systems, CNPq, Rio de Janeiro, RJ 22290-180, Brazil

Renio S. Mendes

Affiliations Departamento de Física, Universidade Estadual de Maringá, Maringá, PR 87020-900, Brazil, National Institute of Science and Technology for Complex Systems, CNPq, Rio de Janeiro, RJ 22290-180, Brazil

Ervin K. Lenzi

Affiliations Departamento de Física, Universidade Estadual de Maringá, Maringá, PR 87020-900, Brazil, National Institute of Science and Technology for Complex Systems, CNPq, Rio de Janeiro, RJ 22290-180, Brazil, Departamento de Física, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR 84030-900, Brazil

Haroldo V. Ribeiro

hvr@dfi.uem.br

Affiliations Departamento de Física, Universidade Estadual de Maringá, Maringá, PR 87020-900, Brazil, Departamento de Física, Universidade Tecnológica Federal do Paraná, Apucarana, PR 86812-460, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HVR LGAA. Performed the experiments: HVR LGAA. Analyzed the data: HVR LGAA. Contributed reagents/materials/analysis tools: HVR LGAA RSM EKL. Wrote the paper: HVR LGAA RSM EKL. Prepared the figures: HVR LGAA.