Journal
PHYSICAL REVIEW LETTERS
Volume 97, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.97.247003
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We presented the recent Hall effect data for a number of carriers in La2-xSrxCuO4 as the sum of two components: the temperature independent term n(0)(x), which is due to external doping, and the thermally activated contribution. Their balance determines the crossover temperature T-*(x) from the marginal Fermi liquid to pseudogap regime. The activation energy Delta(x) for thermally excited carriers equals the energy between the Fermi surface arc and the band bottom, as seen in angle-resolved photoemission spectroscopy experiments. Other implications for the (T, x)-phase diagram of cuprates are also discussed.
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