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Magnetic-Field-Induced Localization of Quasiparticles in Underdoped La$ {2-x}$Sr$ x$CuO$ 4$ Single Crystals by Sun, X. F.; Komiya, Seiki; Takeya, J.; Ando, Yoichi is a scholarly article available to read on EtoBox.

What is Magnetic-Field-Induced Localization of Quasiparticles in Underdoped La$ {2-x}$Sr$ x$CuO$ 4$ Single Crystals about?

Magnetic-field-induced ordering of electrons around vortices is a striking phenomenon recently found in high-$T_c$ cuprates. To identify its consequence in the quasiparticle dynamics, the magnetic-field ($H$) dependence of the low-temperature thermal conductivity $\kappa$ of La$_{2-x}$Sr$_x$CuO$_4$ crystals is studied for a wide doping range. It is found that the behavior of $\kappa(H)$ in the sub-Kelvin region changes drastically across optimum doping, and the data for underdoped samples are indicative of unusual magnetic-field-induced localization of quasiparticles; this localization phenomenon is probably responsible for the unusual "insulating normal state" under high magnetic fields.

Author

Sun, X. F.; Komiya, Seiki; Takeya, J.; Ando, Yoichi

Published

2003

Language

EN