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We report the use of an atomic magnetometer based on nonlinear magneto-optical rotation with frequency modulated light (FM NMOR) to detect nuclear magnetization of xenon gas. The magnetization of a spin-exchange-polarized xenon sample ($1.7…

We report measurements of spin-dependent scattering of conduction electrons by neutral donors in an accumulation-mode field-effect transistor formed in isotopically enriched silicon. Spin-dependent scattering was detected using electrically…

Materials Science · Physics 2009-11-13 C. C. Lo , J. Bokor , T. Schenkel , A. M. Tyryshkin , S. A. Lyon

A short review of the pulsed electrically detected magnetic resonance (pEDMR) experiment is presented. PEDMR allows the highly sensitive observation of coherent electron spin motion of charge carriers and defects in semiconductors by means…

Quantum Physics · Physics 2009-11-11 Christoph Boehme , Klaus Lips

By comparing the signals of electron spin resonance (ESR) from two crystals of a diamond (spin-labels) the demagnetizing field of the Co, Fe, and Ni samples in the shape of strongly elongated ellipsoids of revolution (disks) has been…

Materials Science · Physics 2010-06-30 N. A. Poklonski , T. M. Lapchuk , N. I. Gorbachuk

We present a methodology for probing the details of electronic susceptibility through minimally-invasive nuclear magnetic resonance techniques. Specifically, we classify electron-mediated long-range interactions in an ensemble of nuclear…

Strongly Correlated Electrons · Physics 2022-08-17 Stephen Carr , Charles Snider , D. E. Feldman , Chandrasekhar Ramanathan , J. B. Marston , V. F. Mitrović

Spectral diffusion arising from $^{29}$Si nuclear spin flip-flops, known to be a primary source of electron spin decoherence in silicon, is also predicted to limit the coherence times of neutral donor nuclear spins in silicon. Here, the…

The nuclear spins of ionized donors in silicon have become an interesting quantum resource due to their very long coherence times. Their perfect isolation, however, comes at a price, since the absence of the donor electron makes the nuclear…

We present measurements of electromagnetically induced transparency with an ensemble of donor- bound electrons in low-doped n-GaAs. We used optical transitions from the Zeeman-split electron spin states to a bound trion state in samples…

Mesoscale and Nanoscale Physics · Physics 2010-10-11 Maksym Sladkov , A. U. Chaubal , M. P. Bakker , A. R. Onur , D. Reuter , A. D. Wieck , C. H. van der Wal

Permanent electric dipole moments (EDMs) are excellent probes of physics beyond the Standard Model, especially on new sources of CP violation. The muon EDM has recently attracted significant attention due to discrepancies in the magnetic…

We calculate the screening of the ion-ion potential due to electrons in the presence of a large background magnetic field, at densities of relevance to neutron star crusts. Using the standard approach to incorporate electron screening…

Solar and Stellar Astrophysics · Physics 2015-03-14 Rishi Sharma , Sanjay Reddy

The elementary optical excitations in two dimensional semiconductors hosting itinerant electrons are attractive and repulsive polarons -- excitons that are dynamically screened by electrons. Exciton-polarons have hitherto been studied in…

Hole spins in semiconductor quantum dots or bound to acceptor impurities show promise as potential qubits, partly because of their weak and anisotropic hyperfine couplings to proximal nuclear spins. Since the hyperfine coupling is weak, it…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 Pericles Philippopoulos , Stefano Chesi , Joe Salfi , Sven Rogge , W. A. Coish

The nitrogen-vacancy (NV) center in diamond has been the focus of research efforts because of its suitability for use in applications such as quantum sensing and quantum simulations. Recently, the electron-spin double resonance (ESDR) of NV…

Quantum Physics · Physics 2023-07-12 Takumi Mikawa , Ryusei Okaniwa , Yuichiro Matsuzaki , Norio Tokuda , Junko Ishi-Hayase

Phosphorus-doped silicon single crystals with 0.19 % <= f <= 99.2 %, where f is the concentration of 29^Si isotopes, are measured at 8 K using a pulsed electron spin resonance technique, thereby the effect of environmental 29^Si nuclear…

Materials Science · Physics 2010-11-16 Eisuke Abe , Akira Fujimoto , Junichi Isoya , Satoshi Yamasaki , Kohei M. Itoh

Pulsed electron paramagnetic resonance measurements of donor electron spins in natural phosphorus-doped silicon (Si:P) and isotopically-purified 28Si:P show a strongly temperature-dependent longitudinal relaxation time, T1, due to an Orbach…

Materials Science · Physics 2009-11-10 A. M. Tyryshkin , S. A. Lyon , A. V. Astashkin , A. M. Raitsimring

Phosphorus donor impurities in silicon are a promising candidate for solid-state quantum computing due to their exceptionally long coherence times and high fidelities. However, individual addressability of exchange coupled donor qubits with…

SERF magnetometers based on dense ensembles of alkali-metal spins are precision quantum sensors that hold the record of measured and projected sensitivity to magnetic fields, in the $\mu\textrm{G}-\textrm{mG}$ range. At geomagnetic fields…

Quantum Physics · Physics 2025-05-29 Mark Dikopoltsev , Uriel Levy , Or Katz

In recent years, a variety of solid-state qubits has been realized, including quantum dots, superconducting tunnel junctions and point defects. Due to its potential compatibility with existing microelectronics, the proposal by Kane based on…

Quantum Physics · Physics 2007-05-23 A. R. Stegner , C. Boehme , H. Huebl , M. Stutzmann , K. Lips , M. S. Brandt

A study of donor electron spins and spin--dependent electronic transitions involving phosphorous ($^{31}$P) atoms in proximity of the (111) oriented crystalline silicon (c-Si) to silicon dioxide (SiO$_{2}$) interface is presented for…

Materials Science · Physics 2015-05-13 S. -Y. Paik , S. -Y. Lee , W. J. Baker , D. R. McCamey. C. Boehme

We present experiments to systematically study the time constants of spin-dependent recombination processes in semiconductors using pulsed electrically detected magnetic resonance (EDMR). The combination of time-programmed optical…