Two Sources of Paramagnetic Curie-Type Contribution to the Normal State Magnetic Susceptibility of HTSC YBa₂Cu₃O_6+δ

Abstract:

The experimental evidence for the existence of chain paramagnetic Curie-type contribution to the temperature dependence of the normal (non-superconducting) state magnetic susceptibility χ (T) was obtained for pure high-Tc superconductors (HTSC) YBa₂Cu₃O_6+δ series with different oxygen contents (0.6 < δ ≤ 1). It was shown that this contribution became clearly evident on curves χ (T) only at the temperature T < 150 K. It increases with the amount of oxygen vacancies increase in Cu1–O4 chains, and also depends on the way of the oxygen vacancies ordering.

• Periodical: Solid State Phenomena (Volumes 233-234)
• Pages: 161-164
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.233-234.161
• Online since: July 2015
• Authors: Larisa Mamsurova*, Nikolay Trusevich, Konstantin Pigalskiy, Alexey Vishnev, Igor Mamsurov
• Keywords: Chain Paramagnetism, High Tc Superconductor, Magnetic Susceptibility

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