Phase diagram of CeRh2Si2 under pressure studied by thermopower measurements. (18th March 2015)

• Record Type: Journal Article
• Authors: Palacio-Morales, A; Pourret, A; Knebel, G; Aoki, D; Braithwaite, ; Flouquet, J
• Is Part Of: Journal of physics. Number 592 (2015)
• Page Start: 012002
• Publication Date: 2015-03-18
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/592/1/012002
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We report the evolution of thermoelectric power under hydrostatic pressure up to 17 kbar and at low temperature in the heavy fermion compound CeRh2 Si2 . These measurements were performed using a thermoelectric setup specially designed for piston cylinder pressure cells. The suppression of the antiferromagnetic order (AF) into a paramagnetic order (PM) state was studied and the ( T, P ) phase diagram was precisely obtained. The different magnetic transitions at low temperature as a function of pressure, AF1 -AF2 transition at P'c and AF1 -PM transition at Pc, show significant changes in the thermoelectric signal. This support reconstructions of the Fermi surface in agreement with previous de Haas van Alphen experiments.