Absence of the paramagnetic contribution in the low-temperature specific heat of La1.9Sr0.1Cu0.98Zn0.02O4

Jiunn-Yuan Lin*, C. F. Chang, H. D. Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The absence of the paramagnetic contribution in the low-temperature specific heat (C) of Zn-doped cuprates has attracted much attention recently. The phenomenon was usually explained as possible screening in the superconducting state. We have measured C of La1.9Sr0.1Cu0.98Zn0.02O4 which is not superconducting. Intriguingly, The upper limit of the magnetic contribution is found to be two orders of magnitude smaller than the expected value with no screening effect. This result puts the above explanation in a serious jeopardy.

Original languageEnglish
Pages (from-to)673-674
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume341-348
Issue numberPART 1
DOIs
StatePublished - 1 Jan 2000

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