Dr David Williams

Research Interests

• Quantum information and technologies
• Spintronics
• Quantum optics

David Williams received BA and PhD degrees in physics from Cambridge University in 1984 and 1987 respectively, and held a SERC fellowship from 1987-1989 in the Microelectronics Research Laboratory of the Cavendish. He is Chief Research Scientist and the former Laboratory Manager at the Hitachi Cambridge Laboratory, of which he was a founding member in 1989. His research interests have included three-dimensional silicon circuit structures, novel silicon memory devices, mesoscopic quantum electron transport, advanced electron microscopy, coherent electron-phonon interactions and semiconductor-superconductor hybrids. His current projects cover quantum information processing and nanospintronics.

Recent Research projects

My research interests have included three-dimensional silicon circuit structures, novel silicon memory devices, mesoscopic quantum electron transport, advanced electron microscopy, coherent electron-phonon interactions and semiconductor-superconductor hybrids. My current projects cover the following areas :

• Quantum Information
• NanoPhotonics
• Spintronics

Please refer to the main research page of the Laboratory for more information.

Last Publications

• N. Shimatani, Y. Yamaoka, R. Ishihara, A. Andreev, D. A. Williams, S. Oda, and T. Kodera, Appl. Phys. Lett. 117, 094001 (2020), Temperature dependence of hole transport properties through physically defined silicon quantum dots

• K. Peng, S. Y. Wu, J. Tang, F. L. Song, C. J. Qian, S. B. Sun, S. Xiao, M. Wang, H. Ali, D. A. Williams, and X. L. Xu, Phys. Rev. Appl. 8, 6, 064018 (2017), Probing the Dark-Exciton States of a Single Quantum Dot Using Photocurrent Spectroscopy in a Magnetic Field

• L. Fry-Bouriaux, M. C. Rosamond, D. A. Williams, A. G. Davies, and C. Walti, Phys. Rev. B 96, 11, 115435 (2017), Field-enhanced direct tunneling in ultrathin atomic-layer-deposition-grown Au-Al2O3-Cr metal-insulator-metal structures