Unusual Pr antiferromagnetic ordering in high-Tc cuprates

H. C. Ku; Y. Y. Hsu; B. N. Lin

doi:10.1016/S0022-3697(01)00114-7

Unusual Pr antiferromagnetic ordering in high-T_c cuprates

H. C. Ku^*, Y. Y. Hsu, B. N. Lin

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

The anomalous Pr antiferromagnetic order with high Néel temperature T_N(Pr) are reported throughout the whole Pr_1+xBa_2-xCu₃O_7-y or 1212-type Cu(Ba_2-xPr_x)PrCu₂O_7-y system (-0.2<x<1; -0.4<y<1), where three distinct crystal structures were observed: orthorhombic 1212-chain O(I) (space group Pmmm), tetragonal T (P4/mmm), and orthorhombic O(II) (Cmmm). Systematic variation of T_N(Pr) in this system as well as in other 1212 and 2212 cuprates M_nA₂PrCu₂O₇ (n = 1, 2, M = Hg, Tl, Pb/Cu, Bi, Nb, Cu; A = Sr, Ba, Ba/Pr) was discussed through the correlation of T_N(Pr) with Pr-O bond length. The importance of quasi-two-dimensional Pr-O-Pr superexchange magnetic coupling through strong wave function overlap between the overextended Pr-4f orbital with eight O-2p_π orbitals in the adjacent CuO₂ bi-layer is discussed. No superconductivity was observed in the present study.

Original language	English
Pages (from-to)	1819-1825
Number of pages	7
Journal	Journal of Physics and Chemistry of Solids
Volume	62
Issue number	9-10
DOIs	https://doi.org/10.1016/S0022-3697(01)00114-7
Publication status	Published - 2001 Oct
Externally published	Yes

Keywords

D. Crystal structure
D. Magnetic properties

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/S0022-3697(01)00114-7

Cite this

@article{09937e5edd9944e9acddb57d0d43a14c,

title = "Unusual Pr antiferromagnetic ordering in high-Tc cuprates",

abstract = "The anomalous Pr antiferromagnetic order with high N{\'e}el temperature TN(Pr) are reported throughout the whole Pr1+xBa2-xCu3O7-y or 1212-type Cu(Ba2-xPrx)PrCu2O7-y system (-0.2N(Pr) in this system as well as in other 1212 and 2212 cuprates MnA2PrCu2O7 (n = 1, 2, M = Hg, Tl, Pb/Cu, Bi, Nb, Cu; A = Sr, Ba, Ba/Pr) was discussed through the correlation of TN(Pr) with Pr-O bond length. The importance of quasi-two-dimensional Pr-O-Pr superexchange magnetic coupling through strong wave function overlap between the overextended Pr-4f orbital with eight O-2pπ orbitals in the adjacent CuO2 bi-layer is discussed. No superconductivity was observed in the present study.",

keywords = "D. Crystal structure, D. Magnetic properties",

author = "Ku, {H. C.} and Hsu, {Y. Y.} and Lin, {B. N.}",

note = "Funding Information: This work was supported by the National Science Council of ROC under contract nos. NSC89-2112-M-007-088 and NSC89-2112-M-007-090.",

year = "2001",

month = oct,

doi = "10.1016/S0022-3697(01)00114-7",

language = "English",

volume = "62",

pages = "1819--1825",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Limited",

number = "9-10",

}

TY - JOUR

T1 - Unusual Pr antiferromagnetic ordering in high-Tc cuprates

AU - Ku, H. C.

AU - Hsu, Y. Y.

AU - Lin, B. N.

N1 - Funding Information: This work was supported by the National Science Council of ROC under contract nos. NSC89-2112-M-007-088 and NSC89-2112-M-007-090.

PY - 2001/10

Y1 - 2001/10

N2 - The anomalous Pr antiferromagnetic order with high Néel temperature TN(Pr) are reported throughout the whole Pr1+xBa2-xCu3O7-y or 1212-type Cu(Ba2-xPrx)PrCu2O7-y system (-0.2N(Pr) in this system as well as in other 1212 and 2212 cuprates MnA2PrCu2O7 (n = 1, 2, M = Hg, Tl, Pb/Cu, Bi, Nb, Cu; A = Sr, Ba, Ba/Pr) was discussed through the correlation of TN(Pr) with Pr-O bond length. The importance of quasi-two-dimensional Pr-O-Pr superexchange magnetic coupling through strong wave function overlap between the overextended Pr-4f orbital with eight O-2pπ orbitals in the adjacent CuO2 bi-layer is discussed. No superconductivity was observed in the present study.

AB - The anomalous Pr antiferromagnetic order with high Néel temperature TN(Pr) are reported throughout the whole Pr1+xBa2-xCu3O7-y or 1212-type Cu(Ba2-xPrx)PrCu2O7-y system (-0.2N(Pr) in this system as well as in other 1212 and 2212 cuprates MnA2PrCu2O7 (n = 1, 2, M = Hg, Tl, Pb/Cu, Bi, Nb, Cu; A = Sr, Ba, Ba/Pr) was discussed through the correlation of TN(Pr) with Pr-O bond length. The importance of quasi-two-dimensional Pr-O-Pr superexchange magnetic coupling through strong wave function overlap between the overextended Pr-4f orbital with eight O-2pπ orbitals in the adjacent CuO2 bi-layer is discussed. No superconductivity was observed in the present study.

KW - D. Crystal structure

KW - D. Magnetic properties

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