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7 papers
Images of metallic and insulating domains on the surface of a (La0.4Pr0.6)0.67Ca0.33MnO3 film
Surendra Singh, M. R. Fitzsimmons, H. Jeen +2
Using conductive atomic force microscopy, we observed non-uniform distributions of metallic and insulating domains on the surface of a single crystalline (La0.4Pr0.6)0.67Ca0.33MnO3…
Implementation of quantum logic operations and creation of entanglement in a silicon-based quantum computer with constant interaction
G. P. Berman, G. W. Brown, M. E. Hawley +2
We describe how to implement quantum logic operations in a silicon-based quantum computer with phosphorus atoms serving as qubits. The information is stored in the states of nuclea…
Strongly Enhanced Current Densities in Superconducting Coated Conductors of YBa2Cu3O7-x + BaZrO3
J. L. MacManus-Driscoll, S. R. Foltyn, Q. X. Jia +7
There are numerous potential applications for superconducting tapes, based on YBa2Cu3O7-x (YBCO) films coated onto metallic substrates. A long established goal of more than 15 year…
Observation of Buried Phosphorus Dopants near Clean Si(100)-(2x1) with Scanning Tunneling Microscopy
Geoffrey W. Brown, Holger Grube, Marilyn E. Hawley
We have used scanning tunneling microscopy to identify individual phosphorus dopant atoms near the clean silicon (100)-(2x1) reconstructed surface. The charge-induced band bending…
Split-off dimer defects on the Si(001)2x1 surface
S. R. Schofield, N. A. Marks, N. J. Curson +6
Dimer vacancy (DV) defect complexes in the Si(001)2x1 surface were investigated using high-resolution scanning tunneling microscopy and first principles calculations. We find that…
Towards the fabrication of phosphorus qubits for a silicon quantum computer
J. L. O'Brien, S. R. Schofield, M. Y. Simmons +7
The quest to build a quantum computer has been inspired by the recognition of the formidable computational power such a device could offer. In particular silicon-based proposals, u…