1. Department
of Physics, Nano-magnetism Research Center, Institute of Nanotechnology
and Advanced Materials, Bar-Ilan University, Ramat-Gan, 52900, Israel
2. ETH Zürich, Photonics Laboratory, Zürich, 8093, Switzerland
3. Instituto
de Física “Gleb Wataghin”, Universidade Estadual de Campinas, C.
P. 6165, 13083-970 Campinas, Sao Paulo, Brazil
4. Departamento
de Fisica, CCT, Universidade Federal de Roraima, 69304-000 Boa Vista, Roraima, Brazil
5. Departamento
de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil