X-ray photoemission studies of BiInO3: Surface termination and effective Debye temperature

被引：8
作者：
Dhingra, Archit [1 ]
Sando, Daniel [2 ,3 ]
Lu, Po-Shen [2 ]
Marzouk, Zoe G. [1 ]
Nagarajan, Valanoor [2 ]
Dowben, Peter A. [1 ]
机构：
[1] Univ Nebraska, Dept Phys & Astron, Jorgenson Hall,855 North 16th St, Lincoln, NE 68588 USA
[2] Univ New South Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia
[3] Univ New South Wales, Mark Wainwright Analyt Ctr, Sydney, NSW 2052, Australia
来源：
JOURNAL OF APPLIED PHYSICS | 2021年 / 130卷 / 02期
基金：
澳大利亚研究理事会; 美国国家科学基金会;
关键词：
PHOTOELECTRON-SPECTROSCOPY; MANGANESE PEROVSKITES; ELECTRONIC-STRUCTURE; OXIDE; XPS; SEGREGATION; POLAR; OXIDATION; CRYSTAL; BISMUTH;
D O I：
10.1063/5.0057556
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
BiInO3 is a potentially polar oxide with distinct optical properties whose origin could result from a surface that has not been well characterized. The surface properties of BiInO3 thin films have been characterized here by temperature dependent angle-resolved x-ray photoemission spectroscopy. A large surface to bulk core-level binding energy shift for the In 3d(5/2) core-level is identified, indicating a surface very different from the bulk. BiInO3 terminates in indium oxide and loses bismuth from the surface of the film at T = 573 K. The Debye-Waller plots suggest effective Debye temperatures of 263 +/- 10 and 556 +/- 27 K for the surface and bulk components of In 3d core-level, respectively.
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页数：6
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