Preserved entropy and fragile magnetism
Paul C. Canfield, Sergey L. Bud'ko
TL;DR
This paper discusses the exploration of strongly correlated electron systems characterized by preserved entropy and fragile magnetism, aiming to discover new materials with unique magnetic and electronic properties.
Contribution
It proposes a research framework for discovering and developing lanthanide and transition metal-based systems exhibiting fragile magnetism or preserved entropy.
Findings
Examples include YbBiPt, YbAgGe, and BaFe2As2.
Suppressed magnetism reveals underlying correlated electron phenomena.
Potential pathways for new material discovery are outlined.
Abstract
A large swath of strongly correlated electron systems can be associated with the phenomena of preserved entropy and fragile magnetism. In this overview we present our thoughts and plans for the discovery and development of lanthanide and transition metal based, strongly correlated systems that are revealed by suppressed, fragile magnetism or grow out of preserved entropy. We will present and discuss current examples such as YbBiPt, YbAgGe, YbFe2Zn20, PrAg2In, BaFe2As2, CaFe2As2, LaCrSb3 and LaCrGe3 as part of our motivation and to provide illustrative examples.
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