Magnetic order in the normal state of the archetypal high-Tc superconductor La2-xSrxCuO4
C. Panagopoulos, M. Majoros, T. Nishizaki, H. Iwasaki
TL;DR
This study reveals magnetic order in the normal state of La2-xSrxCuO4, appearing above Tc but below the pseudogap temperature, with properties linked to doping levels, indicating complex magnetic phenomena in high-Tc superconductors.
Contribution
It provides detailed bulk magnetization measurements showing magnetic order in the normal state of La2-xSrxCuO4, highlighting its doping dependence and interaction with magnetic domains.
Findings
Magnetic hysteresis observed above Tc
Order correlates with doping levels
Magnetic domains influence the order
Abstract
We report detailed bulk magnetization measurements of the normal state in the high transition temperature (high-Tc) superconductor La2-xSrxCuO4. A magnetic order in the form of hysteresis in the low field magnetization was observed at temperatures well above Tc but below the pseudogap temperature. The order arises from the interaction of magnetic domains, and the doping (x) dependence of its onset and strength broadly follows that of Tc(x).
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