Design of an ultrahigh vacuum transfer mechanism to interconnect an oxide molecular beam epitaxy growth chamber and an x-ray photoemission spectroscopy analysis system

Journal Article · Sat Jun 15 00:00:00 EDT 2013 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4804195· OSTI ID:22118657

Rutkowski, M. M.; Zhaoquan, Zeng ^[1]; McNicholas, K. M. ^[2]; Brillson, L. J. ^[1]

---

1. Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States)
2. Department of Electrical and Computer Engineering, Ohio State University, Columbus, Ohio 43210 (United States)

We designed a mechanism and the accompanying sample holders to transfer between a VEECO 930 oxide molecular beam epitaxy (MBE) and a PHI Versa Probe X-ray photoemission spectroscopy (XPS) chamber within a multiple station growth, processing, and analysis system through ultrahigh vacuum (UHV). The mechanism consists of four parts: (1) a platen compatible with the MBE growth stage, (2) a platen compatible with the XPS analysis stage, (3) a sample coupon that is transferred between the two platens, and (4) the accompanying UHV transfer line. The mechanism offers a robust design that enables transfer back and forth between the growth chamber and the analysis chamber, and yet is flexible enough to allow transfer between standard sample holders for thin film growth and masked sample holders for making electrical contacts and Schottky junctions, all without breaking vacuum. We used this mechanism to transfer a barium strontium titanate thin film into the XPS analysis chamber and performed XPS measurements before and after exposing the sample to the air. After air exposure, a thin overlayer of carbon was found to form and a significant shift ({approx}1 eV) in the core level binding energies was observed.

• OSTI ID: 22118657
• Journal Information: Review of Scientific Instruments, Vol. 84, Issue 6; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BARIUM
BARIUM COMPOUNDS
BINDING ENERGY
DESIGN
LAYERS
MOLECULAR BEAM EPITAXY
OXIDES
PHOTOEMISSION
SAMPLE HOLDERS
STRONTIUM
STRONTIUM COMPOUNDS
THIN FILMS
X RADIATION
X-RAY PHOTOELECTRON SPECTROSCOPY