Comparison of YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems: Raman and XPS studies

In Sang Yang; Y. J. Wee; S. J. Kim; Kyun Nahm; Chul Koo Kim; Moonsup Han; W. C. Yang; S. J. Oh

doi:10.1103/PhysRevB.48.7570

Comparison of YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems: Raman and XPS studies

In Sang Yang, Y. J. Wee, S. J. Kim, Kyun Nahm, Chul Koo Kim, Moonsup Han, W. C. Yang, S. J. Oh

Department of Physics

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Abstract

We report results of Raman and x-ray photoemission spectroscopy (XPS) measurements of the YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems. No appreciable changes were observed for YBa2Cu3-xZnxO7 in either measurement. On the other hand, Raman frequencies of Ba and apical oxygen (Oz) modes increase and the binding energies of Ba core levels show an increasing trend as y increases in Er1-yPryBa2Cu3O7. Results for Er1-yPryBa2Cu3O7 are consistent with our prevous work for Pr-doped 1:2:3 superconductors and can be explained in terms of hole localization at Ba sites. Our experimental results indicate that the suppression mechanism in the YBa2Cu3-xZnxO7 system is different from that in the Er1-yPryBa2Cu3O7 system.

Original language	English
Pages (from-to)	7570-7575
Number of pages	6
Journal	Physical Review B
Volume	48
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.48.7570
State	Published - 1993

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title = "Comparison of YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems: Raman and XPS studies",

abstract = "We report results of Raman and x-ray photoemission spectroscopy (XPS) measurements of the YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems. No appreciable changes were observed for YBa2Cu3-xZnxO7 in either measurement. On the other hand, Raman frequencies of Ba and apical oxygen (Oz) modes increase and the binding energies of Ba core levels show an increasing trend as y increases in Er1-yPryBa2Cu3O7. Results for Er1-yPryBa2Cu3O7 are consistent with our prevous work for Pr-doped 1:2:3 superconductors and can be explained in terms of hole localization at Ba sites. Our experimental results indicate that the suppression mechanism in the YBa2Cu3-xZnxO7 system is different from that in the Er1-yPryBa2Cu3O7 system.",

author = "Yang, {In Sang} and Wee, {Y. J.} and Kim, {S. J.} and Kyun Nahm and Kim, {Chul Koo} and Moonsup Han and Yang, {W. C.} and Oh, {S. J.}",

year = "1993",

doi = "10.1103/PhysRevB.48.7570",

language = "English",

volume = "48",

pages = "7570--7575",

journal = "Physical Review B",

issn = "0163-1829",

publisher = "American Physical Society",

number = "10",

}

TY - JOUR

T1 - Comparison of YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems

T2 - Raman and XPS studies

AU - Yang, In Sang

AU - Wee, Y. J.

AU - Kim, S. J.

AU - Nahm, Kyun

AU - Kim, Chul Koo

AU - Han, Moonsup

AU - Yang, W. C.

AU - Oh, S. J.

PY - 1993

Y1 - 1993

N2 - We report results of Raman and x-ray photoemission spectroscopy (XPS) measurements of the YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems. No appreciable changes were observed for YBa2Cu3-xZnxO7 in either measurement. On the other hand, Raman frequencies of Ba and apical oxygen (Oz) modes increase and the binding energies of Ba core levels show an increasing trend as y increases in Er1-yPryBa2Cu3O7. Results for Er1-yPryBa2Cu3O7 are consistent with our prevous work for Pr-doped 1:2:3 superconductors and can be explained in terms of hole localization at Ba sites. Our experimental results indicate that the suppression mechanism in the YBa2Cu3-xZnxO7 system is different from that in the Er1-yPryBa2Cu3O7 system.

AB - We report results of Raman and x-ray photoemission spectroscopy (XPS) measurements of the YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems. No appreciable changes were observed for YBa2Cu3-xZnxO7 in either measurement. On the other hand, Raman frequencies of Ba and apical oxygen (Oz) modes increase and the binding energies of Ba core levels show an increasing trend as y increases in Er1-yPryBa2Cu3O7. Results for Er1-yPryBa2Cu3O7 are consistent with our prevous work for Pr-doped 1:2:3 superconductors and can be explained in terms of hole localization at Ba sites. Our experimental results indicate that the suppression mechanism in the YBa2Cu3-xZnxO7 system is different from that in the Er1-yPryBa2Cu3O7 system.

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U2 - 10.1103/PhysRevB.48.7570

DO - 10.1103/PhysRevB.48.7570

M3 - Article

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SN - 0163-1829

VL - 48

SP - 7570

EP - 7575

JO - Physical Review B

JF - Physical Review B

IS - 10

ER -

Comparison of YBa2Cu3-xZnxO7 and Er1-yPryBa2Cu3O7 systems: Raman and XPS studies

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