Interaction of metal with oxide films: V on Cr2O3(0001)/Re(0001) and Cr on V2O3(0001)/Re(0001)

Wende Xiao; Kan Xie; Qinlin Guo; E. G. Wang

doi:10.1088/0953-8984/14/25/302

Interaction of metal with oxide films: V on Cr₂O₃(0001)/Re(0001) and Cr on V₂O₃(0001)/Re(0001)

Wende Xiao
, Kan Xie
, Qinlin Guo^*
, E. G. Wang

^*Corresponding author for this work

Chinese Academy of Sciences

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

4 Citations (Scopus)

Abstract

The interactions of V with Cr₂O₃(0001) films and Cr with V₂O₃(0001) films at room temperature are studied using x-ray photoelectron spectroscopy and low-energy-electron diffraction. The results show that the deposited V is oxidized and the Cr₂O₃(0001) surface is reduced at the initial coverage due to the interaction of V with the Cr₂O₃ substrate; V becomes metallic at V coverage greater than 5 monolayer equivalent. Full oxidization of the deposited vanadium cannot be achieved by O₂ exposure at room temperature for 20 min. However, V₂O₃(0001) films have been observed after heating the sample to 600-700 K in oxygen ambient at 1 × 10^-7 mbar. Similar results have been obtained for the Cr/V₂O₃(0001)/Re(0001) system.

Original language	English
Article number	302
Pages (from-to)	6321-6328
Number of pages	8
Journal	Journal of Physics Condensed Matter
Volume	14
Issue number	25
DOIs	https://doi.org/10.1088/0953-8984/14/25/302
Publication status	Published - 1 Jul 2002
Externally published	Yes

Access to Document

10.1088/0953-8984/14/25/302

Cite this

@article{09ff5e4321964245a8d49036d7b0b357,

title = "Interaction of metal with oxide films: V on Cr2O3(0001)/Re(0001) and Cr on V2O3(0001)/Re(0001)",

abstract = "The interactions of V with Cr2O3(0001) films and Cr with V2O3(0001) films at room temperature are studied using x-ray photoelectron spectroscopy and low-energy-electron diffraction. The results show that the deposited V is oxidized and the Cr2O3(0001) surface is reduced at the initial coverage due to the interaction of V with the Cr2O3 substrate; V becomes metallic at V coverage greater than 5 monolayer equivalent. Full oxidization of the deposited vanadium cannot be achieved by O2 exposure at room temperature for 20 min. However, V2O3(0001) films have been observed after heating the sample to 600-700 K in oxygen ambient at 1 × 10-7 mbar. Similar results have been obtained for the Cr/V2O3(0001)/Re(0001) system.",

author = "Wende Xiao and Kan Xie and Qinlin Guo and Wang, \{E. G.\}",

year = "2002",

month = jul,

day = "1",

doi = "10.1088/0953-8984/14/25/302",

language = "English",

volume = "14",

pages = "6321--6328",

journal = "Journal of Physics Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd.",

number = "25",

}

TY - JOUR

T1 - Interaction of metal with oxide films

T2 - V on Cr2O3(0001)/Re(0001) and Cr on V2O3(0001)/Re(0001)

AU - Xiao, Wende

AU - Xie, Kan

AU - Guo, Qinlin

AU - Wang, E. G.

PY - 2002/7/1

Y1 - 2002/7/1

N2 - The interactions of V with Cr2O3(0001) films and Cr with V2O3(0001) films at room temperature are studied using x-ray photoelectron spectroscopy and low-energy-electron diffraction. The results show that the deposited V is oxidized and the Cr2O3(0001) surface is reduced at the initial coverage due to the interaction of V with the Cr2O3 substrate; V becomes metallic at V coverage greater than 5 monolayer equivalent. Full oxidization of the deposited vanadium cannot be achieved by O2 exposure at room temperature for 20 min. However, V2O3(0001) films have been observed after heating the sample to 600-700 K in oxygen ambient at 1 × 10-7 mbar. Similar results have been obtained for the Cr/V2O3(0001)/Re(0001) system.

AB - The interactions of V with Cr2O3(0001) films and Cr with V2O3(0001) films at room temperature are studied using x-ray photoelectron spectroscopy and low-energy-electron diffraction. The results show that the deposited V is oxidized and the Cr2O3(0001) surface is reduced at the initial coverage due to the interaction of V with the Cr2O3 substrate; V becomes metallic at V coverage greater than 5 monolayer equivalent. Full oxidization of the deposited vanadium cannot be achieved by O2 exposure at room temperature for 20 min. However, V2O3(0001) films have been observed after heating the sample to 600-700 K in oxygen ambient at 1 × 10-7 mbar. Similar results have been obtained for the Cr/V2O3(0001)/Re(0001) system.

UR - https://www.scopus.com/pages/publications/0036640680

U2 - 10.1088/0953-8984/14/25/302

DO - 10.1088/0953-8984/14/25/302

M3 - Article

AN - SCOPUS:0036640680

SN - 0953-8984

VL - 14

SP - 6321

EP - 6328

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 25

M1 - 302

ER -

Interaction of metal with oxide films: V on Cr₂O₃(0001)/Re(0001) and Cr on V₂O₃(0001)/Re(0001)

Abstract

Access to Document

Other files and links

Fingerprint

Cite this