Reentrant Irreversibility and Magnetic Transition in Strongly Underdoped Y0.47Pr0.53Ba2Cu3O7-δ Single Crystals
نویسندگان
چکیده
Magnetization measurements on Y0.47Pr0.53Ba2Cu3O7 single crystal in the vicinity of the superconducting transition temperature Tc = 7 K revealed a reentrant irreversibility for applied magnetic fields higher than the irreversibility field Hirr. The transition to the second hysteresis loop occurs through an irreversible jump in magnetization. The temperature range of this irreversibility extends up to 40 K. Generally, this double hysteretic regime has been associated in low dimensional systems with the pinning of spin and/or charge density waves.
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