Photo-excitation of single crystals of La2CuO4+δ near the metal-insulator transition
✍ Scribed by G. Yu; C.H. Lee; A.J. Heeger; S.-W. Cheong; Z. Fisk
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 557 KB
- Volume
- 190
- Category
- Article
- ISSN
- 0921-4534
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📜 SIMILAR VOLUMES
Measurements are reported of the conductivity and the dielectric constant (¢1) at frequencies (to) up to 20 MHz and magnetic fields up to 15 T for a single crystal of La2CuO4+y with y varied in the range 0.001 -0.01. The frequency dependence of the conductivity at low temperatures follows a power la
Single crystals of antiferromagnetic La2CuO4+ b (TN=250K) which show superconductivity ( Tc=32K ) with the Mcissner fraction of 9.1% were grown from a melt with excess of CuO. The electrical resistivity and the Hall effect have been measured on the as-grown and heat-treated samples under high magnet