Abstract
We discuss the temperature-concentration phase diagram of doped La2CuO4. The addition of holes introduces a local ferromagnetic exchange coupling between Cu spins. The resulting frustration destroys the 3D Néel state characterizing pure La2CuO4, and generates a new 3D spin-glass phase. In the paramagnetic phase, strongly correlated Cu spins in the planes are canted by the holes, yielding an oscillating dipole-dipole attraction between holes. The possible relevance to superconductivity is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 1330-1333 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 60 |
| Issue number | 13 |
| DOIs | |
| State | Published - 1 Jan 1988 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy