Charge transfer mechanism and T-c(x) dependence in Y-0.8(Ca)(0.2)Ba2Cu3O6+x
Abstract
We propose a model for the charge transfer mechanism in Y0.8(Ca)0.2Ba2Cu3O6+x to count the hole doping of CuO2 planes and the x dependence of the critical transition temperature Tc. It is assumed that the total number of doped holes in the planes is the sum of the numbers of holes that are introduced through two separate channels: substitution of Y3+ by Ca2+ and from CuO chains that are longer than a minimal (critical) length lmin needed for charge transfer to take place. The Tc(x) dependence is obtained by combining the calculated x dependence of doping, p(x), and the universal Tc versus p relation. Although calculated Tc(x) dependences for lmin = 3 and 4 both correlate remarkably well with the experimental Tc(x), we argue that the value lmin = 3 gives a reasonable overall agreement.
Source:
Superconductor Science and Technology, 2008, 21, 7, 075012-Note:
- Preprint version: https://doi.org/10.48550/arXiv.0705.0299
DOI: 10.1088/0953-2048/21/7/075012
ISSN: 0953-2048; 1361-6668
WoS: 000256544400013
Scopus: 2-s2.0-44449178661
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Institution/Community
VinčaTY - JOUR AU - Matić, Vladimir M. AU - Lazarov, Nenad Đ. AU - Bradarić, Ivica PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3463 AB - We propose a model for the charge transfer mechanism in Y0.8(Ca)0.2Ba2Cu3O6+x to count the hole doping of CuO2 planes and the x dependence of the critical transition temperature Tc. It is assumed that the total number of doped holes in the planes is the sum of the numbers of holes that are introduced through two separate channels: substitution of Y3+ by Ca2+ and from CuO chains that are longer than a minimal (critical) length lmin needed for charge transfer to take place. The Tc(x) dependence is obtained by combining the calculated x dependence of doping, p(x), and the universal Tc versus p relation. Although calculated Tc(x) dependences for lmin = 3 and 4 both correlate remarkably well with the experimental Tc(x), we argue that the value lmin = 3 gives a reasonable overall agreement. T2 - Superconductor Science and Technology T1 - Charge transfer mechanism and T-c(x) dependence in Y-0.8(Ca)(0.2)Ba2Cu3O6+x VL - 21 IS - 7 SP - 075012 DO - 10.1088/0953-2048/21/7/075012 ER -
@article{ author = "Matić, Vladimir M. and Lazarov, Nenad Đ. and Bradarić, Ivica", year = "2008", abstract = "We propose a model for the charge transfer mechanism in Y0.8(Ca)0.2Ba2Cu3O6+x to count the hole doping of CuO2 planes and the x dependence of the critical transition temperature Tc. It is assumed that the total number of doped holes in the planes is the sum of the numbers of holes that are introduced through two separate channels: substitution of Y3+ by Ca2+ and from CuO chains that are longer than a minimal (critical) length lmin needed for charge transfer to take place. The Tc(x) dependence is obtained by combining the calculated x dependence of doping, p(x), and the universal Tc versus p relation. Although calculated Tc(x) dependences for lmin = 3 and 4 both correlate remarkably well with the experimental Tc(x), we argue that the value lmin = 3 gives a reasonable overall agreement.", journal = "Superconductor Science and Technology", title = "Charge transfer mechanism and T-c(x) dependence in Y-0.8(Ca)(0.2)Ba2Cu3O6+x", volume = "21", number = "7", pages = "075012", doi = "10.1088/0953-2048/21/7/075012" }
Matić, V. M., Lazarov, N. Đ.,& Bradarić, I.. (2008). Charge transfer mechanism and T-c(x) dependence in Y-0.8(Ca)(0.2)Ba2Cu3O6+x. in Superconductor Science and Technology, 21(7), 075012. https://doi.org/10.1088/0953-2048/21/7/075012
Matić VM, Lazarov NĐ, Bradarić I. Charge transfer mechanism and T-c(x) dependence in Y-0.8(Ca)(0.2)Ba2Cu3O6+x. in Superconductor Science and Technology. 2008;21(7):075012. doi:10.1088/0953-2048/21/7/075012 .
Matić, Vladimir M., Lazarov, Nenad Đ., Bradarić, Ivica, "Charge transfer mechanism and T-c(x) dependence in Y-0.8(Ca)(0.2)Ba2Cu3O6+x" in Superconductor Science and Technology, 21, no. 7 (2008):075012, https://doi.org/10.1088/0953-2048/21/7/075012 . .