Fixed triangle in Bi2-XPbXSr2CaCu 2O8+Y and Bi2-XPbXSr 2Ca2Cu3O10+Y systems

C. Q. Guo; C. Y. Zhang; S. J. Hao; W. T. Jin; H. Zhang

doi:10.1142/S0217979213620154

Fixed triangle in Bi_2-XPb_XSr₂CaCu ₂O_8+Y and Bi_2-XPb_XSr ₂Ca₂Cu₃O_10+Y systems

C. Q. Guo
, C. Y. Zhang
, S. J. Hao
, W. T. Jin
, H. Zhang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The structural characteristics of Bi_2-xPb_xSr ₂CaCu₂O_8+y (Bi-2212) and Bi _2-xPb_xSr₂Ca₂Cu₃O _10+y (Bi-2223) with x changing from 0 to 0.8 were studied by X-ray diffraction and Rietveld refinement. By careful calculation of chemical bond lengths and angles, it is found that there exists a fixed triangle on the Cu-O planes in the two systems, and then makes the Cu-O planes stable. The fluctuations of this fixed triangle were investigated, and it is found that there is a close relationship between it and T_c's. In addition, we discussed the origin of this special local structure. It may be caused by the interaction between the perovskite block and the rock salt block in a unit cell, which may play an important role in the mechanism of high temperature superconductivity.

Original language	English
Article number	1362015
Journal	International Journal of Modern Physics B
Volume	27
Issue number	15
DOIs	https://doi.org/10.1142/S0217979213620154
State	Published - 20 Jul 2013
Externally published	Yes

Keywords

BSCCO
Block model
structure
superconductivity

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10.1142/S0217979213620154

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title = "Fixed triangle in Bi2-XPbXSr2CaCu 2O8+Y and Bi2-XPbXSr 2Ca2Cu3O10+Y systems",

abstract = "The structural characteristics of Bi2-xPbxSr 2CaCu2O8+y (Bi-2212) and Bi 2-xPbxSr2Ca2Cu3O 10+y (Bi-2223) with x changing from 0 to 0.8 were studied by X-ray diffraction and Rietveld refinement. By careful calculation of chemical bond lengths and angles, it is found that there exists a fixed triangle on the Cu-O planes in the two systems, and then makes the Cu-O planes stable. The fluctuations of this fixed triangle were investigated, and it is found that there is a close relationship between it and Tc's. In addition, we discussed the origin of this special local structure. It may be caused by the interaction between the perovskite block and the rock salt block in a unit cell, which may play an important role in the mechanism of high temperature superconductivity.",

keywords = "BSCCO, Block model, structure, superconductivity",

author = "Guo, \{C. Q.\} and Zhang, \{C. Y.\} and Hao, \{S. J.\} and Jin, \{W. T.\} and H. Zhang",

year = "2013",

month = jul,

day = "20",

doi = "10.1142/S0217979213620154",

language = "英语",

volume = "27",

journal = "International Journal of Modern Physics B",

issn = "0217-9792",

publisher = "World Scientific",

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}

TY - JOUR

T1 - Fixed triangle in Bi2-XPbXSr2CaCu 2O8+Y and Bi2-XPbXSr 2Ca2Cu3O10+Y systems

AU - Guo, C. Q.

AU - Zhang, C. Y.

AU - Hao, S. J.

AU - Jin, W. T.

AU - Zhang, H.

PY - 2013/7/20

Y1 - 2013/7/20

N2 - The structural characteristics of Bi2-xPbxSr 2CaCu2O8+y (Bi-2212) and Bi 2-xPbxSr2Ca2Cu3O 10+y (Bi-2223) with x changing from 0 to 0.8 were studied by X-ray diffraction and Rietveld refinement. By careful calculation of chemical bond lengths and angles, it is found that there exists a fixed triangle on the Cu-O planes in the two systems, and then makes the Cu-O planes stable. The fluctuations of this fixed triangle were investigated, and it is found that there is a close relationship between it and Tc's. In addition, we discussed the origin of this special local structure. It may be caused by the interaction between the perovskite block and the rock salt block in a unit cell, which may play an important role in the mechanism of high temperature superconductivity.

AB - The structural characteristics of Bi2-xPbxSr 2CaCu2O8+y (Bi-2212) and Bi 2-xPbxSr2Ca2Cu3O 10+y (Bi-2223) with x changing from 0 to 0.8 were studied by X-ray diffraction and Rietveld refinement. By careful calculation of chemical bond lengths and angles, it is found that there exists a fixed triangle on the Cu-O planes in the two systems, and then makes the Cu-O planes stable. The fluctuations of this fixed triangle were investigated, and it is found that there is a close relationship between it and Tc's. In addition, we discussed the origin of this special local structure. It may be caused by the interaction between the perovskite block and the rock salt block in a unit cell, which may play an important role in the mechanism of high temperature superconductivity.

KW - BSCCO

KW - Block model

KW - structure

KW - superconductivity

UR - https://www.scopus.com/pages/publications/84878235891

U2 - 10.1142/S0217979213620154

DO - 10.1142/S0217979213620154

M3 - 文章

AN - SCOPUS:84878235891

SN - 0217-9792

VL - 27

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 15

M1 - 1362015

ER -

Fixed triangle in Bi_2-XPb_XSr₂CaCu ₂O_8+Y and Bi_2-XPb_XSr ₂Ca₂Cu₃O_10+Y systems

Abstract

Keywords

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