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New investigations using magnetization-step method

Grant number: 98/11522-6
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): December 01, 1998
Effective date (End): February 28, 2003
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Xavier Gratens
Grantee:Xavier Gratens
Home 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


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, Set. 2002.

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