Investigation of magnetism in rare-earth (RE) intermetallic compounds by measuring the magnetic hyperfine field using PAC spectroscopy: RERh2 and RECo5

• Grant number: 14/02582-0
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Start date: August 07, 2014
• End date: October 25, 2014
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Artur Wilson Carbonari
• Grantee: Artur Wilson Carbonari
• Visiting researcher: Vasily I. Krylov
• Visiting researcher institution: Lomonosov Moscow State University (MSU), Russia
• Host Institution: Instituto de Pesquisas Energéticas e Nucleares (IPEN). Secretaria de Desenvolvimento Econômico (São Paulo - Estado). São Paulo , SP, Brazil

Abstract

In the present project, the magnetic hyperfine field in RERh2 and RECo5 compounds, where RE is a rare-earth element, will be investigated by perturbed gamma-gamma angular correlation spectroscopy using 111Cd as probe nuclei. These data will add to Mossbauer spectroscopy data collected by Dr. Krylov. The aim of the present collaboration is to understand the coupling mechanism in the studied compounds by means of the magnetic hyperfine interaction data acquired by two hyperfine interactions techniques using different probe nuclei at different sites of the crystalline structure of the materials. Therefore, it will be possible to get a detailed description of the behavior of the magnetic interactions at an atomic level. (AU)