About the Authors

Luiz G. A. Alves

Affiliation Departamento de Física and National Institute of Science and Technology for Complex Systems, Universidade Estadual de Maringá, Maringá, Brazil

Haroldo V. Ribeiro

hvr@dfi.uem.br

Affiliation Departamento de Física and National Institute of Science and Technology for Complex Systems, Universidade Estadual de Maringá, Maringá, Brazil

Ervin K. Lenzi

Affiliation Departamento de Física and National Institute of Science and Technology for Complex Systems, Universidade Estadual de Maringá, Maringá, Brazil

Renio S. Mendes

Affiliation Departamento de Física and National Institute of Science and Technology for Complex Systems, Universidade Estadual de Maringá, Maringá, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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