Abstract
The rare-earth nickel borocarbides, with the generic formula , have recently been shown to display a rich variety of phenomena. Most striking has been the competition between, and even coexistence of, antiferromagnetism and superconductivity. We have measured the Fermi surface (FS) of , and shown that it possesses nesting features capable of explaining some of the phenomena experimentally observed. In particular, it had previously been conjectured that a particular sheet of FS is responsible for the modulated magnetic structures manifest in some of the series. We report the first direct experimental observation of this sheet.
- Received 12 July 1999
DOI:https://doi.org/10.1103/PhysRevLett.83.4824
©1999 American Physical Society