Photoemission study of YBa2Cu3Oy thin films under light illumination

D. Asakura; J. W. Quilty; K. Takubo; S. Hirata; T. Mizokawa; Y. Muraoka; Z. Hiroi

doi:10.1103/PhysRevLett.93.247006

Photoemission study of YBa₂Cu₃O_y thin films under light illumination

D. Asakura^*, J. W. Quilty, K. Takubo, S. Hirata, T. Mizokawa, Y. Muraoka, Z. Hiroi

^*Corresponding author for this work

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

23 Citations (Scopus)

Abstract

The photovoltage due to the photocarrier injections (PCI) effect at the heterojunction of YBCO/STO:Nb was investigated using x-ray photoemission spectroscopy (XPS) combined with the laser source. The magnitude of the photovoltaic-induced shift in the core level was found to be 0.78 V at a laser frequency of 30 Hz at 130 K. The relaxation time of the photovoltage and maximum photovoltage was also analyzed. It was concluded that the photovoltage can be slightly enhanced with cooling from 300 to 130 K and saturated below 130 K.

Original language	English
Article number	247006
Journal	Physical Review Letters
Volume	93
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.93.247006
Publication status	Published - 2004 Dec 10
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.93.247006

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@article{56696470362348aea11653bb82aed7fa,

title = "Photoemission study of YBa2Cu3Oy thin films under light illumination",

abstract = "The photovoltage due to the photocarrier injections (PCI) effect at the heterojunction of YBCO/STO:Nb was investigated using x-ray photoemission spectroscopy (XPS) combined with the laser source. The magnitude of the photovoltaic-induced shift in the core level was found to be 0.78 V at a laser frequency of 30 Hz at 130 K. The relaxation time of the photovoltage and maximum photovoltage was also analyzed. It was concluded that the photovoltage can be slightly enhanced with cooling from 300 to 130 K and saturated below 130 K.",

author = "D. Asakura and Quilty, {J. W.} and K. Takubo and S. Hirata and T. Mizokawa and Y. Muraoka and Z. Hiroi",

note = "Funding Information: This work was supported by a Grant-in-Aid for Scientific Research in the priority area “Novel Quantum Phenomena in Transition-Metal Oxides” from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.",

year = "2004",

month = dec,

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doi = "10.1103/PhysRevLett.93.247006",

language = "English",

volume = "93",

journal = "Physical Review Letters",

issn = "0031-9007",

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T1 - Photoemission study of YBa2Cu3Oy thin films under light illumination

AU - Asakura, D.

AU - Quilty, J. W.

AU - Takubo, K.

AU - Hirata, S.

AU - Mizokawa, T.

AU - Muraoka, Y.

AU - Hiroi, Z.

N1 - Funding Information: This work was supported by a Grant-in-Aid for Scientific Research in the priority area “Novel Quantum Phenomena in Transition-Metal Oxides” from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.

PY - 2004/12/10

Y1 - 2004/12/10

N2 - The photovoltage due to the photocarrier injections (PCI) effect at the heterojunction of YBCO/STO:Nb was investigated using x-ray photoemission spectroscopy (XPS) combined with the laser source. The magnitude of the photovoltaic-induced shift in the core level was found to be 0.78 V at a laser frequency of 30 Hz at 130 K. The relaxation time of the photovoltage and maximum photovoltage was also analyzed. It was concluded that the photovoltage can be slightly enhanced with cooling from 300 to 130 K and saturated below 130 K.

AB - The photovoltage due to the photocarrier injections (PCI) effect at the heterojunction of YBCO/STO:Nb was investigated using x-ray photoemission spectroscopy (XPS) combined with the laser source. The magnitude of the photovoltaic-induced shift in the core level was found to be 0.78 V at a laser frequency of 30 Hz at 130 K. The relaxation time of the photovoltage and maximum photovoltage was also analyzed. It was concluded that the photovoltage can be slightly enhanced with cooling from 300 to 130 K and saturated below 130 K.

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JO - Physical Review Letters

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ER -

Photoemission study of YBa₂Cu₃O_y thin films under light illumination

Abstract

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