Theoretical studies have predicted a Kondo effect driven charge density wave order with two sublattices characterized by different single-ion Kondo temperatures. Here, X-ray photoemission spectroscopy provides evidence of a dual Kondo effect in the charge ordered phase of YbPd, elucidating the mechanism of its zero thermal expansion.
- Yen-Fa Liao
- Bodry Tegomo Chiogo
- Ashish Chainani
