4 papers
A multi-stop time-of-flight spectrometer for the measurement of positron annihilation-induced electrons in coincidence with the Doppler-shifted annihilation gamma photon
V. A. Chirayath, R. W. Gladen, A. D. McDonald +12
Here we describe an advanced multi functional, variable-energy positron beam system capable of measuring the energies of multiple positron-induced electrons in coincidence with the…
Charge transfer and tunable built-in electric fields across semiconductor-crystalline oxide interfaces
Zheng Hui Lim, Nicholas F. Quackenbush, Aubrey Penn +10
Built-in electric fields across heterojunctions between semiconducting materials underpin the functionality of modern device technologies. Heterojunctions between semiconductors an…
Interfacial Structure of SrZrTiO films on Ge
Tongjie Chen, Kamyar Ahmadi-Majlan, Zheng Hui Lim +4
The interfacial structure of SrZrTiO films grown on semiconducting Ge substrates are investigated by synchrotron X-ray diffraction and first-principles density fu…
Atomic layer control of metal-insulator behavior in oxide quantum wells integrated directly on silicon
Kamyar Ahmadi-Majlan, Tong-Jie Chen, Zheng Hui Lim +6
We present electrical and structural characterization of epitaxial LaTiO3/SrTiO3 quantum wells integrated directly on Si(100). The quantum wells exhibit metallic transport describe…