Longueur et valence de liaison dans les nouveaux cuprates T * Nd1,2Sr0,8-xY(Ln)xCuO4-δ (Ln = Ho, Er, Yb)

Gabriel Cǎruntu; Michèle Crespin; Dumitru Gînju; Loan Berdan

Longueur et valence de liaison dans les nouveaux cuprates T * Nd_1,2Sr_0,8-xY(Ln)_xCuO_4-δ (Ln = Ho, Er, Yb)

Translated title of the contribution: Bondlength and valence bond in the new cuprates T * of Nd_1.2Sr_0.8-xY(Ln)_xCuO_4-δ (Ln = Ho, Er, Yb)

Gabriel Cǎruntu, Michèle Crespin, Dumitru Gînju, Loan Berdan

https://www.cmich.edu/academics/colleges/college-science-engineering/departments-schools/chemistry-and-biochemistry

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

Abstract

We have studied the charge distribution on the new T* copper oxides Nd_1.2Sr_0.8-xY(Ln)_xCuO_4-δ (Ln = Ho, Er, Yb) by using the valence bond model and the structural information of these oxides. The results show an unequal distribution of charges with a strong delocalisation in the RS part of the structure with a small excess located in the fluorite and perovskite blocs. On the basis of results provided by the literature we can conclude that such a distribution is not favorable for a superconducting transition in these systems.

Translated title of the contribution	Bondlength and valence bond in the new cuprates T * of Nd_1.2Sr_0.8-xY(Ln)_xCuO_4-δ (Ln = Ho, Er, Yb)
Original language	French
Pages (from-to)	201-206
Number of pages	6
Journal	Revue Roumaine de Chimie
Volume	46
Issue number	3
State	Published - Mar 2001

Cite this

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abstract = "We have studied the charge distribution on the new T* copper oxides Nd1.2Sr0.8-xY(Ln)xCuO4-δ (Ln = Ho, Er, Yb) by using the valence bond model and the structural information of these oxides. The results show an unequal distribution of charges with a strong delocalisation in the RS part of the structure with a small excess located in the fluorite and perovskite blocs. On the basis of results provided by the literature we can conclude that such a distribution is not favorable for a superconducting transition in these systems.",

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AU - Cǎruntu, Gabriel

AU - Crespin, Michèle

AU - Gînju, Dumitru

AU - Berdan, Loan

PY - 2001/3

Y1 - 2001/3

N2 - We have studied the charge distribution on the new T* copper oxides Nd1.2Sr0.8-xY(Ln)xCuO4-δ (Ln = Ho, Er, Yb) by using the valence bond model and the structural information of these oxides. The results show an unequal distribution of charges with a strong delocalisation in the RS part of the structure with a small excess located in the fluorite and perovskite blocs. On the basis of results provided by the literature we can conclude that such a distribution is not favorable for a superconducting transition in these systems.

AB - We have studied the charge distribution on the new T* copper oxides Nd1.2Sr0.8-xY(Ln)xCuO4-δ (Ln = Ho, Er, Yb) by using the valence bond model and the structural information of these oxides. The results show an unequal distribution of charges with a strong delocalisation in the RS part of the structure with a small excess located in the fluorite and perovskite blocs. On the basis of results provided by the literature we can conclude that such a distribution is not favorable for a superconducting transition in these systems.

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JO - Revue Roumaine de Chimie

JF - Revue Roumaine de Chimie

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ER -

Longueur et valence de liaison dans les nouveaux cuprates T * Nd_1,2Sr_0,8-xY(Ln)_xCuO_4-δ (Ln = Ho, Er, Yb)

Abstract

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