Towards a Two-Dimensional Superconducting State of La2−xSrxCuO4 in a Moderate External Magnetic Field
A. A. Schafgans, A. D. LaForge, S. V. Dordevic, M. M. Qazilbash, W. J. Padilla, K. S. Burch, Z. Q. Li, Seiki Komiya, Yoichi Ando, D. N. Basov
DOI 10.1103/PhysRevLett.104.157002 · Physical Review Letters
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Abstract
We report a novel aspect of the competition and coexistence between magnetism and superconductivity in the high-Tc cuprate La2−xSrxCuO4 (La214). With a modest magnetic field applied H∥c axis, we monitored the infrared signature of pair tunneling between the CuO2 planes and discovered the complete suppression of interlayer coupling in a series of underdoped La214 single crystals. We find that the in-plane superconducting properties remain intact, in spite of enhanced magnetism in the planes.
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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