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Condensed Matter > Superconductivity

Title: Spin Dynamics near the Superconductor-to-Insulator Transition in Impurity-Doped YBa2Cu4O8

Authors: Y. Itoh, T. Machi, N. Watanabe, S. Adachi, N. Koshizuka
(Submitted on 10 Jul 2001)
Abstract: We studied low-frequency spin dynamics near the impurity-induced superconductor-to-insulator transition for underdoped high-Tc superconductor YBa2(Cu1-xMx)4O8 (M=Ni, Zn) using the Cu nuclear quadrupole resonance (NQR) spin-echo technique. We observed remarkable suppression of the normal-state pseudo spin-gap and a loss of Cu NQR spectrum intensity at low temperatures around the critical impurity concentration.
Comments: 6 pages, 4 figures. To be published in J. Phys. Soc. Jpn. Vol.70, No.7 (2001)
Subjects: Superconductivity (cond-mat.supr-con); Strongly Correlated Electrons (cond-mat.str-el)
Journal reference: J. Phys. Soc. Jpn. 70 (2001) 1881
Cite as: arXiv:cond-mat/0107187v1 [cond-mat.supr-con]

Submission history

From: Yutaka Itoh [view email]
[v1] Tue, 10 Jul 2001 03:43:57 GMT (220kb)
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