Magnetic phase diagram and magnetic pairing in doped La2CuO4

Amnon Aharony*, R. J. Birgeneau, A. Coniglio, M. A. Kastner, H. E. Stanley

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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 languageEnglish
Pages (from-to)1330-1333
Number of pages4
JournalPhysical Review Letters
Issue number13
StatePublished - 1988


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