A model for the chain-to-plane charge transfer in YBa2Cu3O6+x
Apstrakt
A model for the chain-to-plane charge transfer is proposed to account for the two plateaus, at 60 K and at 90 K, of the T-c(x) characteristics of the YBa2Cu3O6+x high-T-c superconductor. It is assumed that the number of holes transferred from a CuO chain of length l to two nearby CuO2 sheets is proportional to l (that is, to the number of oxygen atoms in the chain), if the chain length is greater than, or equal to, a certain critical chain length, l(cr), that is required to trigger the charge transfer process. No holes are assumed to have been transferred from chains of length l LT l(cr). The calculated T-c(x) dependence is found to be in excellent agreement with the experimentally reported T-c(x). The critical chain length parameter is estimated to be equal to l(cr) = 11 (eleven oxygen atoms in a chain), which is a greater value than that obtained in the previously proposed model for the chain-to-plane charge transfer (l(cr) = 4). The results obtained out of the proposed model are bri...efly discussed.
Ključne reči:
YBCO / oxygen ordering / critical temperature / dopingIzvor:
Chinese Physics B, 2012, 21, 11Finansiranje / projekti:
- Superprovodnost, magnetizam i fluktuacione pojave (RS-MESTD-Basic Research (BR or ON)-171027)
DOI: 10.1088/1674-1056/21/11/117401
ISSN: 1674-1056
WoS: 000310950400069
Scopus: 2-s2.0-84869099392
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Matić, Vladimir M. AU - Lazarov, Nenad Đ. AU - Milić, Mirjana M. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5155 AB - A model for the chain-to-plane charge transfer is proposed to account for the two plateaus, at 60 K and at 90 K, of the T-c(x) characteristics of the YBa2Cu3O6+x high-T-c superconductor. It is assumed that the number of holes transferred from a CuO chain of length l to two nearby CuO2 sheets is proportional to l (that is, to the number of oxygen atoms in the chain), if the chain length is greater than, or equal to, a certain critical chain length, l(cr), that is required to trigger the charge transfer process. No holes are assumed to have been transferred from chains of length l LT l(cr). The calculated T-c(x) dependence is found to be in excellent agreement with the experimentally reported T-c(x). The critical chain length parameter is estimated to be equal to l(cr) = 11 (eleven oxygen atoms in a chain), which is a greater value than that obtained in the previously proposed model for the chain-to-plane charge transfer (l(cr) = 4). The results obtained out of the proposed model are briefly discussed. T2 - Chinese Physics B T1 - A model for the chain-to-plane charge transfer in YBa2Cu3O6+x VL - 21 IS - 11 DO - 10.1088/1674-1056/21/11/117401 ER -
@article{ author = "Matić, Vladimir M. and Lazarov, Nenad Đ. and Milić, Mirjana M.", year = "2012", abstract = "A model for the chain-to-plane charge transfer is proposed to account for the two plateaus, at 60 K and at 90 K, of the T-c(x) characteristics of the YBa2Cu3O6+x high-T-c superconductor. It is assumed that the number of holes transferred from a CuO chain of length l to two nearby CuO2 sheets is proportional to l (that is, to the number of oxygen atoms in the chain), if the chain length is greater than, or equal to, a certain critical chain length, l(cr), that is required to trigger the charge transfer process. No holes are assumed to have been transferred from chains of length l LT l(cr). The calculated T-c(x) dependence is found to be in excellent agreement with the experimentally reported T-c(x). The critical chain length parameter is estimated to be equal to l(cr) = 11 (eleven oxygen atoms in a chain), which is a greater value than that obtained in the previously proposed model for the chain-to-plane charge transfer (l(cr) = 4). The results obtained out of the proposed model are briefly discussed.", journal = "Chinese Physics B", title = "A model for the chain-to-plane charge transfer in YBa2Cu3O6+x", volume = "21", number = "11", doi = "10.1088/1674-1056/21/11/117401" }
Matić, V. M., Lazarov, N. Đ.,& Milić, M. M.. (2012). A model for the chain-to-plane charge transfer in YBa2Cu3O6+x. in Chinese Physics B, 21(11). https://doi.org/10.1088/1674-1056/21/11/117401
Matić VM, Lazarov NĐ, Milić MM. A model for the chain-to-plane charge transfer in YBa2Cu3O6+x. in Chinese Physics B. 2012;21(11). doi:10.1088/1674-1056/21/11/117401 .
Matić, Vladimir M., Lazarov, Nenad Đ., Milić, Mirjana M., "A model for the chain-to-plane charge transfer in YBa2Cu3O6+x" in Chinese Physics B, 21, no. 11 (2012), https://doi.org/10.1088/1674-1056/21/11/117401 . .