Disorder in frustrated antiferromagnets

• Grant number: 17/22562-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2018
• End date: January 31, 2019
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Eric de Castro e Andrade
• Grantee: Nathan Pratta Teodosio
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 13/00681-8 - Disordered magnets: ground state, excitations, and thermodynamics, AP.JP

Abstract

The effects of frustration in magnetic systems with continuous symmetry lead to a large variety of physical phenomena, ranging from non-collinear magnetic order to the absence of long-range order. In this project, we will study how the competition between magnetic exchange couplings generates a phase transition at finite temperatures in two-dimensions. We are also interested in the fate of this unusual transition in the presence of disorder. (AU)