Theory of the magnetic excitations in the Cu-O superconductors
Per Hedegrd, Michael Brix Pedersen
DOI 10.1103/PhysRevB.42.10035 · Physical Review B
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Abstract
We show that the recent neutron-scattering data of Shirane et al. on large, superconducting La2−xSrxCuO4 single crystals can be explained in a model with bosonic spins. A part of the spin system Bose condenses at incommensurate k points, resulting in a spiral spin structure. The rest of the spin system goes into a pair condensate, whose excitations describe the spin excitations of the spiral state. Some suggestions for experimental tests are given.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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