Anomalous Pr Ordering and Structural Analysis for Oxygenated Tetragonal 1212 Compound Pr1.5Ba1.5Cu3O7.2

H. C. Ku; H. M. Luo; Y. P. Chi; B. N. Lin; Y. Y. Hsu; T. J. Lee; J. B. Shi; H. C.I. Kao

doi:10.1023/a:1022546723142

Anomalous Pr Ordering and Structural Analysis for Oxygenated Tetragonal 1212 Compound Pr_1.5Ba_1.5Cu₃O_7.2

H. C. Ku^*, H. M. Luo, Y. P. Chi, B. N. Lin, Y. Y. Hsu, T. J. Lee, J. B. Shi, H. C.I. Kao

^*此作品的通信作者

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

4 引文斯高帕斯（Scopus）

摘要

Magnetic measurement and powder X-ray Rietveld analysis are performed on oxygenated Pri_1.5Ba_1.5Cu₃O_7.2 cuprate. This tetragonal compound with lattice parameters a = 0.38916 nm and c = 1.16177 nm is found to form the TlBa₂CaCu₂O₇ 1212-type structure when written as Cu[Ba_1.5Pr_0.5]PrCu₂O_7.2. Low temperature magnetic data indicate that anomalous Pr order temperature T_N(Pr) decreases from 18 K for orthorhombic PrBa₂Cu₃O_6.9 to 10.5 K for Pr_1.5Ba_1.5Cu₃O_7.2. The increasing Pr-O bond length with decreasing TN indicates that Pr ordering is closely correlated with the wave function overlap between Pr-4f orbital and O-2p_π orbital in the CuO₂ bi-layers.

原文	英語
頁（從 - 到）	885-889
頁數	5
期刊	Journal of Low Temperature Physics
卷	117
發行號	3-4
DOIs	https://doi.org/10.1023/a:1022546723142
出版狀態	已發佈 - 1999
對外發佈	是

ASJC Scopus subject areas

原子與分子物理與光學
一般材料科學
凝聚態物理學

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10.1023/a:1022546723142

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@article{6b6907daa59343a988400eda5fae12dc,

title = "Anomalous Pr Ordering and Structural Analysis for Oxygenated Tetragonal 1212 Compound Pr1.5Ba1.5Cu3O7.2",

abstract = "Magnetic measurement and powder X-ray Rietveld analysis are performed on oxygenated Pri1.5Ba1.5Cu3O7.2 cuprate. This tetragonal compound with lattice parameters a = 0.38916 nm and c = 1.16177 nm is found to form the TlBa2CaCu2O7 1212-type structure when written as Cu[Ba1.5Pr0.5]PrCu2O7.2. Low temperature magnetic data indicate that anomalous Pr order temperature TN(Pr) decreases from 18 K for orthorhombic PrBa2Cu3O6.9 to 10.5 K for Pr1.5Ba1.5Cu3O7.2. The increasing Pr-O bond length with decreasing TN indicates that Pr ordering is closely correlated with the wave function overlap between Pr-4f orbital and O-2pπ orbital in the CuO2 bi-layers.",

author = "Ku, {H. C.} and Luo, {H. M.} and Chi, {Y. P.} and Lin, {B. N.} and Hsu, {Y. Y.} and Lee, {T. J.} and Shi, {J. B.} and Kao, {H. C.I.}",

year = "1999",

doi = "10.1023/a:1022546723142",

language = "English",

volume = "117",

pages = "885--889",

journal = "Journal of Low Temperature Physics",

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publisher = "Springer New York",

number = "3-4",

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TY - JOUR

T1 - Anomalous Pr Ordering and Structural Analysis for Oxygenated Tetragonal 1212 Compound Pr1.5Ba1.5Cu3O7.2

AU - Ku, H. C.

AU - Luo, H. M.

AU - Chi, Y. P.

AU - Lin, B. N.

AU - Hsu, Y. Y.

AU - Lee, T. J.

AU - Shi, J. B.

AU - Kao, H. C.I.

PY - 1999

Y1 - 1999

N2 - Magnetic measurement and powder X-ray Rietveld analysis are performed on oxygenated Pri1.5Ba1.5Cu3O7.2 cuprate. This tetragonal compound with lattice parameters a = 0.38916 nm and c = 1.16177 nm is found to form the TlBa2CaCu2O7 1212-type structure when written as Cu[Ba1.5Pr0.5]PrCu2O7.2. Low temperature magnetic data indicate that anomalous Pr order temperature TN(Pr) decreases from 18 K for orthorhombic PrBa2Cu3O6.9 to 10.5 K for Pr1.5Ba1.5Cu3O7.2. The increasing Pr-O bond length with decreasing TN indicates that Pr ordering is closely correlated with the wave function overlap between Pr-4f orbital and O-2pπ orbital in the CuO2 bi-layers.

AB - Magnetic measurement and powder X-ray Rietveld analysis are performed on oxygenated Pri1.5Ba1.5Cu3O7.2 cuprate. This tetragonal compound with lattice parameters a = 0.38916 nm and c = 1.16177 nm is found to form the TlBa2CaCu2O7 1212-type structure when written as Cu[Ba1.5Pr0.5]PrCu2O7.2. Low temperature magnetic data indicate that anomalous Pr order temperature TN(Pr) decreases from 18 K for orthorhombic PrBa2Cu3O6.9 to 10.5 K for Pr1.5Ba1.5Cu3O7.2. The increasing Pr-O bond length with decreasing TN indicates that Pr ordering is closely correlated with the wave function overlap between Pr-4f orbital and O-2pπ orbital in the CuO2 bi-layers.

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DO - 10.1023/a:1022546723142

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SN - 0022-2291

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EP - 889

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 3-4

ER -

Anomalous Pr Ordering and Structural Analysis for Oxygenated Tetragonal 1212 Compound Pr1.5Ba1.5Cu3O7.2

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Anomalous Pr Ordering and Structural Analysis for Oxygenated Tetragonal 1212 Compound Pr_1.5Ba_1.5Cu₃O_7.2