Localization effects and pseudogap state in YBa2Cu3O7-d single crystals with different oxygen content

Pseudogap

Автор(и)

  • M.A. Obolenskii V.N. Karazin Kharkov National University, 4 Svoboda sq., Kharkiv, 61077, Ukraine
  • R.V. Vovk V.N. Karazin Kharkov National University, 4 Svoboda sq., Kharkiv, 61077, Ukraine
  • A.V. Bondarenko V.N. Karazin Kharkov National University, 4 Svoboda sq., Kharkiv, 61077, Ukraine
  • N.N. Chebotaev V.N. Karazin Kharkov National University, 4 Svoboda sq., Kharkiv, 61077, Ukraine

DOI (Low Temperature Physics):


https://doi.org/10.1063/1.2215373

Ключові слова:

YBa2Cu3O7–d single crystals, preudogap, localization, oxygen content, crossover.

Анотація

We have investigated the evolution of the temperature dependence of the in-plane and off-plane conductivity of YBa2Cu3O7–d single crystals due to the decrease of the oxygen content in the samples caused by a heat treatment. The concentration dependence of the in-plane and off-plane energy gaps has been determined. It has been shown that the enhancement of the localization effects results in a suppression of the pseudogap state. At the same time, the decrease of the oxygen content results in a relative narrowing of the temperature interval in which the regime of the fluctuating conductivity is realized.

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Опубліковано

2006-04-21

Як цитувати

(1)
M.A. Obolenskii, R.V. Vovk, A.V. Bondarenko, and N.N. Chebotaev, Localization effects and pseudogap state in YBa2Cu3O7-d single crystals with different oxygen content: Pseudogap, Low Temp. Phys. 32, (2006) [Fiz. Nizk. Temp. 32, 746-752, (2006)] DOI: https://doi.org/10.1063/1.2215373.

Номер

Том 32 № 6 (2006)

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