Interpretation of the Neutron Scattering Data on Flux Lattices of Superconductors
D. Chang, C.-Y. Mou, B. Rosenstein, C. L. Wu
DOI 10.1103/PhysRevLett.80.145 · Physical Review Letters
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Abstract
Small angle neutron scattering (SANS) experiments are analyzed using a recently developed and properly generalized one-field effective free energy method. In the case of experiment of Keimer et al. on YBa2Cu3O7, we show that the fourfold symmetry of the underlying crystal is explicitly broken, but the reflection with respect to the [110] and [11¯0] axes remains a symmetry. The vortex lattice also becomes generally oblique instead of rectangular body centered. An unexpectedly rich phase diagram is described.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| ErNi2B2C 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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