Interfacial chemical states of resistance-switching metal/Pr0.7 Ca0.3MnO3 interfaces

R. Yasuhara; T. Yamamoto; I. Ohkubo; H. Kumigashira; M. Oshima

doi:10.1063/1.3496033

Interfacial chemical states of resistance-switching metal/Pr_0.7 Ca_0.3MnO₃ interfaces

R. Yasuhara, T. Yamamoto, I. Ohkubo, H. Kumigashira, M. Oshima

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

42 Citations (Scopus)

Abstract

The relationship between interfacial chemical states and resistance-switching (RS) behaviors at the metal/Pr_0.7Ca _0.3MnO₃ (PCMO) interfaces has been studied by photoemission spectroscopy and x-ray absorption spectroscopy. For Al/PCMO interfaces that exhibit RS behavior, redox reactions between Al and Mn ions occur at the interface. In sharp contrast, no chemical reactions occur at Pt/PCMO interfaces that do not exhibit RS behavior. These results strongly suggest that the interfacial transition layer due to the redox reactions is responsible for the RS behavior at metal/PCMO interfaces.

Original language	English
Article number	132111
Journal	Applied Physics Letters
Volume	97
Issue number	13
DOIs	https://doi.org/10.1063/1.3496033
Publication status	Published - 2010 Sep 27
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3496033

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title = "Interfacial chemical states of resistance-switching metal/Pr0.7 Ca0.3MnO3 interfaces",

abstract = "The relationship between interfacial chemical states and resistance-switching (RS) behaviors at the metal/Pr0.7Ca 0.3MnO3 (PCMO) interfaces has been studied by photoemission spectroscopy and x-ray absorption spectroscopy. For Al/PCMO interfaces that exhibit RS behavior, redox reactions between Al and Mn ions occur at the interface. In sharp contrast, no chemical reactions occur at Pt/PCMO interfaces that do not exhibit RS behavior. These results strongly suggest that the interfacial transition layer due to the redox reactions is responsible for the RS behavior at metal/PCMO interfaces.",

author = "R. Yasuhara and T. Yamamoto and I. Ohkubo and H. Kumigashira and M. Oshima",

note = "Funding Information: This work was supported by the JST PRESTO program, the JST CREST program, and a Grant-in-Aid for Scientific Research (Grant Nos. A19684010 and A19204037) from the Japan Society for the Promotion of Science (JSPS). R.Y. acknowledges the financial support from JSPS. Synchrotron-radiation photoelectron measurements were performed under the Project No. 08S2-003 at the Institute of Materials Structure Science at KEK.",

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AU - Yasuhara, R.

AU - Yamamoto, T.

AU - Ohkubo, I.

AU - Kumigashira, H.

AU - Oshima, M.

N1 - Funding Information: This work was supported by the JST PRESTO program, the JST CREST program, and a Grant-in-Aid for Scientific Research (Grant Nos. A19684010 and A19204037) from the Japan Society for the Promotion of Science (JSPS). R.Y. acknowledges the financial support from JSPS. Synchrotron-radiation photoelectron measurements were performed under the Project No. 08S2-003 at the Institute of Materials Structure Science at KEK.

PY - 2010/9/27

Y1 - 2010/9/27

N2 - The relationship between interfacial chemical states and resistance-switching (RS) behaviors at the metal/Pr0.7Ca 0.3MnO3 (PCMO) interfaces has been studied by photoemission spectroscopy and x-ray absorption spectroscopy. For Al/PCMO interfaces that exhibit RS behavior, redox reactions between Al and Mn ions occur at the interface. In sharp contrast, no chemical reactions occur at Pt/PCMO interfaces that do not exhibit RS behavior. These results strongly suggest that the interfacial transition layer due to the redox reactions is responsible for the RS behavior at metal/PCMO interfaces.

AB - The relationship between interfacial chemical states and resistance-switching (RS) behaviors at the metal/Pr0.7Ca 0.3MnO3 (PCMO) interfaces has been studied by photoemission spectroscopy and x-ray absorption spectroscopy. For Al/PCMO interfaces that exhibit RS behavior, redox reactions between Al and Mn ions occur at the interface. In sharp contrast, no chemical reactions occur at Pt/PCMO interfaces that do not exhibit RS behavior. These results strongly suggest that the interfacial transition layer due to the redox reactions is responsible for the RS behavior at metal/PCMO interfaces.

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Interfacial chemical states of resistance-switching metal/Pr_0.7 Ca_0.3MnO₃ interfaces

Abstract

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