Cubic zirconia crystalline surface oxide epitaxial formation on ZrB2(0001) confirmed by circularly-polarized-light photoelectron diffraction

Rie Horie; Fumihiko Matsui; Naoyuki Maejima; Hirosuke Matsui; Kota Tanaka; Hiroshi Daimon; Tomohiro Matsushita; Shigeki Otani; Takashi Aizawa

doi:10.1380/ejssnt.2015.111

Cubic zirconia crystalline surface oxide epitaxial formation on ZrB₂(0001) confirmed by circularly-polarized-light photoelectron diffraction

Rie Horie, Fumihiko Matsui, Naoyuki Maejima, Hirosuke Matsui, Kota Tanaka, Hiroshi Daimon, Tomohiro Matsushita, Shigeki Otani, Takashi Aizawa

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

1 Citation (Scopus)

Abstract

Pure cubic zirconia (c-ZrO₂) is unstable at room temperature. We achieved the epitaxial formation of c-ZrO₂ crystalline surface oxide islands on ZrB₂(0001) by annealing the substrate without sample cleaning at 950°C under ultrahigh-vacuum conditions. The interface structure at the c-ZrO₂ islands and the ZrB₂(0001) substrate was investigated using element-specific circularly-polarized-light photoelectron diffraction, angle-resolved X-ray photoelectron spectroscopy, and reflection high-energy electron diffraction (RHEED). The ZrO₂(111) islands was a twin crystal oriented in ZrO₂[110]//ZrB₂[2110], and was stable up to around 1500°C. The Zr-Zr distance of ZrB₂ bulk and that of ZrO₂(111) agree with at the ratio of 8 to 7.

Original language	English
Pages (from-to)	111-114
Number of pages	4
Journal	e-Journal of Surface Science and Nanotechnology
Volume	13
DOIs	https://doi.org/10.1380/ejssnt.2015.111
Publication status	Published - 2015
Externally published	Yes

Keywords

Epitaxial surface oxide
Photoelectron diffraction
Reflection high-energy electron diffraction (RHEED)
Soft X-ray photoelectron spectroscopy
Surface structure
ZrB
c-ZrO

ASJC Scopus subject areas

Biotechnology
Bioengineering
Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1380/ejssnt.2015.111

Cite this

@article{39d8d10ec7f3413283fa5aa7097b70a8,

title = "Cubic zirconia crystalline surface oxide epitaxial formation on ZrB2(0001) confirmed by circularly-polarized-light photoelectron diffraction",

abstract = "Pure cubic zirconia (c-ZrO2) is unstable at room temperature. We achieved the epitaxial formation of c-ZrO2 crystalline surface oxide islands on ZrB2(0001) by annealing the substrate without sample cleaning at 950°C under ultrahigh-vacuum conditions. The interface structure at the c-ZrO2 islands and the ZrB2(0001) substrate was investigated using element-specific circularly-polarized-light photoelectron diffraction, angle-resolved X-ray photoelectron spectroscopy, and reflection high-energy electron diffraction (RHEED). The ZrO2(111) islands was a twin crystal oriented in ZrO2[110]//ZrB2[2110], and was stable up to around 1500°C. The Zr-Zr distance of ZrB2 bulk and that of ZrO2(111) agree with at the ratio of 8 to 7.",

keywords = "Epitaxial surface oxide, Photoelectron diffraction, Reflection high-energy electron diffraction (RHEED), Soft X-ray photoelectron spectroscopy, Surface structure, ZrB, c-ZrO",

author = "Rie Horie and Fumihiko Matsui and Naoyuki Maejima and Hirosuke Matsui and Kota Tanaka and Hiroshi Daimon and Tomohiro Matsushita and Shigeki Otani and Takashi Aizawa",

note = "Publisher Copyright: {\textcopyright} 2015 The Surface Science Society of Japan.",

year = "2015",

doi = "10.1380/ejssnt.2015.111",

language = "English",

volume = "13",

pages = "111--114",

journal = "e-Journal of Surface Science and Nanotechnology",

issn = "1348-0391",

publisher = "Surface Science Society of Japan",

}

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T1 - Cubic zirconia crystalline surface oxide epitaxial formation on ZrB2(0001) confirmed by circularly-polarized-light photoelectron diffraction

AU - Horie, Rie

AU - Matsui, Fumihiko

AU - Maejima, Naoyuki

AU - Matsui, Hirosuke

AU - Tanaka, Kota

AU - Daimon, Hiroshi

AU - Matsushita, Tomohiro

AU - Otani, Shigeki

AU - Aizawa, Takashi

PY - 2015

Y1 - 2015

N2 - Pure cubic zirconia (c-ZrO2) is unstable at room temperature. We achieved the epitaxial formation of c-ZrO2 crystalline surface oxide islands on ZrB2(0001) by annealing the substrate without sample cleaning at 950°C under ultrahigh-vacuum conditions. The interface structure at the c-ZrO2 islands and the ZrB2(0001) substrate was investigated using element-specific circularly-polarized-light photoelectron diffraction, angle-resolved X-ray photoelectron spectroscopy, and reflection high-energy electron diffraction (RHEED). The ZrO2(111) islands was a twin crystal oriented in ZrO2[110]//ZrB2[2110], and was stable up to around 1500°C. The Zr-Zr distance of ZrB2 bulk and that of ZrO2(111) agree with at the ratio of 8 to 7.

AB - Pure cubic zirconia (c-ZrO2) is unstable at room temperature. We achieved the epitaxial formation of c-ZrO2 crystalline surface oxide islands on ZrB2(0001) by annealing the substrate without sample cleaning at 950°C under ultrahigh-vacuum conditions. The interface structure at the c-ZrO2 islands and the ZrB2(0001) substrate was investigated using element-specific circularly-polarized-light photoelectron diffraction, angle-resolved X-ray photoelectron spectroscopy, and reflection high-energy electron diffraction (RHEED). The ZrO2(111) islands was a twin crystal oriented in ZrO2[110]//ZrB2[2110], and was stable up to around 1500°C. The Zr-Zr distance of ZrB2 bulk and that of ZrO2(111) agree with at the ratio of 8 to 7.

KW - Epitaxial surface oxide

KW - Photoelectron diffraction

KW - Reflection high-energy electron diffraction (RHEED)

KW - Soft X-ray photoelectron spectroscopy

KW - Surface structure

KW - ZrB

KW - c-ZrO

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