2007/12/02 by Hans Huebl, Felix Hoehne, Benno Grolik +4 · 4 citations
Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Atomic physics #Condensed matter physics #Echo (communications protocol) #Electron #Mechanical and Optical Resonators #Nuclear magnetic resonance #Nuclear physics #Optoelectronics #Physics #Pulse sequence #Quantum #Quantum and electron transport phenomena #Quantum decoherence #Quantum mechanics #Qubit #Silicon #Spin (aerodynamics) #Spin echo #quant-ph
paper · pdf · doi:10.1103/physrevlett.100.177602
published as Phys. Rev. Lett. 100, 177602 (2008) · 14 pages, 3 figures
arxiv created 2007/12/02 · openalex publication_date 2008/04/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The electrical detection of spin echoes via echo tomography is used to observe coherent processes associated with the electrical readout of the spin state of phosphorus donor electrons in silicon near a SiO2 interface. Using the Carr-Purcell pulse sequence, an echo decay with a time constant of 1.7+/-0.2 micros is observed and discussed in terms of decoherence and recombination times. Electrical spin echo tomography thus can be used to study the dynamics of the spin-dependent transport processes, e.g., in realistic spin qubit devices for quantum information processing.