Structural anomalies in Nd2-xCexCuO4-y: Evidence for mixed valence and charge transfer

P. H. Hor; Y. Y. Xue; Y. Y. Sun; Y. C. Tao; Z. J. Huang; W. Rabalais; C. W. Chu

doi:10.1016/0921-4534(89)91295-1

Structural anomalies in Nd_2-xCe_xCuO_4-y: Evidence for mixed valence and charge transfer

P. H. Hor, Y. Y. Xue, Y. Y. Sun, Y. C. Tao, Z. J. Huang, W. Rabalais, C. W. Chu

副校長室

研究成果: Article › 同行評審

23 引文斯高帕斯（Scopus）

摘要

The electron oxide superconductors Nd_2-xCe_xCuO_4-y have been investigated by X-ray diffraction, XPS, magnetization and resistivity measurements. We found that Ce-ions lie between the 3+ and 4+ valence states, and that sharp changes in various bond-lengths occur near x=0.15 coinciding with the onset of superconductivity. The later has been taken as evidence for electron-transfer to the CuO₂-layers. The results and their implications are discussed.

原文	English
頁（從 - 到）	629-633
頁數	5
期刊	Physica C: Superconductivity and its applications
卷	159
發行號	5
DOIs	https://doi.org/10.1016/0921-4534(89)91295-1
出版狀態	Published - 1989 七月 15

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

存取文件

10.1016/0921-4534(89)91295-1

其它文件與鏈接

指紋深入研究「Structural anomalies in Nd2-xCexCuO4-y: Evidence for mixed valence and charge transfer」主題。共同形成了獨特的指紋。

引用此

@article{54ca4f4b65c4472f9c0dfccab11db0bb,

title = "Structural anomalies in Nd2-xCexCuO4-y: Evidence for mixed valence and charge transfer",

abstract = "The electron oxide superconductors Nd2-xCexCuO4-y have been investigated by X-ray diffraction, XPS, magnetization and resistivity measurements. We found that Ce-ions lie between the 3+ and 4+ valence states, and that sharp changes in various bond-lengths occur near x=0.15 coinciding with the onset of superconductivity. The later has been taken as evidence for electron-transfer to the CuO2-layers. The results and their implications are discussed.",

author = "Hor, {P. H.} and Xue, {Y. Y.} and Sun, {Y. Y.} and Tao, {Y. C.} and Huang, {Z. J.} and W. Rabalais and Chu, {C. W.}",

note = "Funding Information: This work is supporteidn part by NSF Low Tem-peraturesP hysics Program No. DMR 8616539, DARPA GrantN o. MDA 972-88-G-002T,e xasC enter for Superconductivaitty t heU niversityo f Houston, NASA Grant No. NAGW 977 and the T.L.L. TempleF oundation.",

year = "1989",

month = jul,

day = "15",

doi = "10.1016/0921-4534(89)91295-1",

language = "English",

volume = "159",

pages = "629--633",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "5",

}

TY - JOUR

T1 - Structural anomalies in Nd2-xCexCuO4-y

T2 - Evidence for mixed valence and charge transfer

AU - Hor, P. H.

AU - Xue, Y. Y.

AU - Sun, Y. Y.

AU - Tao, Y. C.

AU - Huang, Z. J.

AU - Rabalais, W.

AU - Chu, C. W.

N1 - Funding Information: This work is supporteidn part by NSF Low Tem-peraturesP hysics Program No. DMR 8616539, DARPA GrantN o. MDA 972-88-G-002T,e xasC enter for Superconductivaitty t heU niversityo f Houston, NASA Grant No. NAGW 977 and the T.L.L. TempleF oundation.

PY - 1989/7/15

Y1 - 1989/7/15

N2 - The electron oxide superconductors Nd2-xCexCuO4-y have been investigated by X-ray diffraction, XPS, magnetization and resistivity measurements. We found that Ce-ions lie between the 3+ and 4+ valence states, and that sharp changes in various bond-lengths occur near x=0.15 coinciding with the onset of superconductivity. The later has been taken as evidence for electron-transfer to the CuO2-layers. The results and their implications are discussed.

AB - The electron oxide superconductors Nd2-xCexCuO4-y have been investigated by X-ray diffraction, XPS, magnetization and resistivity measurements. We found that Ce-ions lie between the 3+ and 4+ valence states, and that sharp changes in various bond-lengths occur near x=0.15 coinciding with the onset of superconductivity. The later has been taken as evidence for electron-transfer to the CuO2-layers. The results and their implications are discussed.

UR - http://www.scopus.com/inward/record.url?scp=0024702279&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024702279&partnerID=8YFLogxK

U2 - 10.1016/0921-4534(89)91295-1

DO - 10.1016/0921-4534(89)91295-1

M3 - Article

AN - SCOPUS:0024702279

VL - 159

SP - 629

EP - 633

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 5

ER -