nov
08
2016
All-optical control of giant magnetic polarons in a magnetic semiconductor
By intranet
O trabalho Light-induced polaron magnetization in EuTe at temperatures reaching 150 K, publicado no Physical Review (Rapid Communications) em 9/5/2016,relata a primeira fotoexcitação e detecção óptica de pólarons magnéticos gigantescos em um semicondutor magnético intrínseco. O pólaron magnético descoberto é uma quasi-partícula, constituída de um elétron fotoexcitado em interação com milhares de átomos spin-polarizados em seu entorno. O momento magnético desta partícula foi medido no EuTe, obtendo-se mais do que 500 magnetons de Bohr, confirmando previsões teóricas.
Português, Brasil
By the controlled addition of doping impurities, Prof. Renato Jardim and collaborators from EEL-USP, UNIFEI and UNICAMP developed a new family of superconductors with relatively high critical temperature. In a recent paper, the hexagonal structure stabilization of the Nb5Ge3 compound doped with carbon atoms was reported.
DFMT I.C. student Henrique Jose Correia Zanoli received an Honorable Mention Award in the 20º International Scientific Initiation Symposium of USP. The awarded study “Structural and electronic analysis of amino acids by semi-empirical quantum computational methods” was supervised by Profa. Helena M. Petrilli in the NANOMOL group and supported by FAPESP I.C. scholarship.
The second edition of the MS Meeting (November 21-22) celebrated the 50th anniversary of the LESBT - Laboratório de Estado Sólido e Baixas Temperaturas. The event program was centered in this laboratory history, pioneer in the development of low temperatures in Brazil, and filled by scientific lectures and historical keynotes given by DFMT members and invited speakers.