New investigations using magnetization-step method.

• Grant number: 98/11522-6
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: December 01, 1998
• End date: February 28, 2003
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Xavier Gratens
• Grantee: Xavier Gratens
• Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 99/10359-7 - Research on semiconductors involving low temperatures and high magnetic fields, AP.TEM

Abstract

The purpose of the project is the investigation of the exchange interaction in the following diluted magnetic semiconductors (DMS) : Cd(1-x)Mn(x)X (X = Te, Se, S), Pb(1-x)Ce(x)Se and Sn(1-x)A(x)Te (A = Eu and Gd). In this way, the method that will be used is the magnetization-step (MST) spectroscopy Because magnetic interactions are often weak, it is necessary to carry out the MST measurements at very low temperatures and the Low Temperature group at USP is the only group which has the equipment and know-how to carry out MST research in the milliKelvin regime. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

V. A. MEZA; X. GRATENS; R. F. JARDIM; L. BEN-DOR. Preparation and general physical properties of polycrystalline PrBa2Cu3O7-y obtained from sol-gel precursors. Brazilian Journal of Physics, v. 32, n. 3, p. 731-738, 2002-09-00. (00/07362-5, 98/11522-6, 99/10798-0)