Search Results - "Ledbetter, M. P"
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Temperature dependence of the nitrogen-vacancy magnetic resonance in diamond
Published in Physical review letters (19-02-2010)“…The temperature dependence of the magnetic-resonance spectra of nitrogen-vacancy (NV-) ensembles in the range of 280-330 K was studied. Four samples prepared…”
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Detecting domain walls of axionlike models using terrestrial experiments
Published in Physical review letters (11-01-2013)“…Stable topological defects of light (pseudo)scalar fields can contribute to the Universe's dark energy and dark matter. Currently, the combination of…”
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Long-lived heteronuclear spin-singlet states in liquids at a zero magnetic field
Published in Physical review letters (21-02-2014)“…We report an observation of long-lived spin-singlet states in a 13C-1H spin pair in a zero magnetic field. In 13C-labeled formic acid, we observe spin-singlet…”
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Zero-field remote detection of NMR with a microfabricated atomic magnetometer
Published in Proceedings of the National Academy of Sciences - PNAS (19-02-2008)“…We demonstrate remote detection of nuclear magnetic resonance (NMR) with a microchip sensor consisting of a microfluidic channel and a microfabricated vapor…”
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Polarized alkali-metal vapor with minute-long transverse spin-relaxation time
Published in Physical review letters (13-08-2010)“…We demonstrate lifetimes of Zeeman populations and coherences in excess of 60 sec in alkali-metal vapor cells with inner walls coated with an alkene material…”
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Remote detection of nuclear magnetic resonance with an anisotropic magnetoresistive sensor
Published in Proceedings of the National Academy of Sciences - PNAS (19-02-2008)“…We report the detection of nuclear magnetic resonance (NMR) using an anisotropic magnetoresistive (AMR) sensor. A "remote-detection" arrangement was used in…”
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Nonlinear amplification of small spin precession using long-range dipolar interactions
Published in Physical review letters (18-02-2005)“…In measurements of small signals using spin precession the precession angle usually grows linearly in time. We show that a dynamic instability caused by spin…”
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Constraints on short-range spin-dependent interactions from scalar spin-spin coupling in deuterated molecular hydrogen
Published in Physical review letters (25-01-2013)“…A comparison between existing nuclear magnetic resonance measurements and calculations of the scalar spin-spin interaction (J coupling) in deuterated molecular…”
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Parahydrogen-enhanced zero-field nuclear magnetic resonance
Published in Nature physics (01-07-2011)“…Nuclear magnetic resonance, conventionally detected in magnetic fields of several tesla, is a powerful analytical tool for the determination of molecular…”
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Broadband magnetometry by infrared-absorption detection of nitrogen-vacancy ensembles in diamond
Published in Applied physics letters (25-10-2010)“…We demonstrate magnetometry by detection of the spin state of high-density nitrogen-vacancy ensembles in diamond using optical absorption at 1042 nm. With this…”
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Near-zero-field nuclear magnetic resonance
Published in Physical review letters (01-09-2011)“…We investigate nuclear magnetic resonance (NMR) in near zero field, where the Zeeman interaction can be treated as a perturbation to the electron mediated…”
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Liquid-state nuclear spin comagnetometers
Published in Physical review letters (15-06-2012)“…We discuss nuclear spin comagnetometers based on ultralow-field nuclear magnetic resonance in mixtures of miscible solvents, each rich in a different nuclear…”
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Optical detection of NMR J-spectra at zero magnetic field
Published in Journal of magnetic resonance (1997) (01-07-2009)“…Scalar couplings of the form J I 1 · I 2 between nuclei impart valuable information about molecular structure to nuclear magnetic-resonance spectra. Here we…”
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Parahydrogen-enhanced zero-field nuclear magnetic resonance
Published in Nature physics (01-05-2011)Get full text
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Note: Detection of a single cobalt microparticle with a microfabricated atomic magnetometer
Published in Review of scientific instruments (01-08-2011)“…We present magnetic detection of a single, 2 μm diameter cobalt microparticle using an atomic magnetometer based on a microfabricated vapor cell. These results…”
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Zero-field nuclear magnetic resonance spectroscopy of viscous liquids
Published in Journal of magnetic resonance (1997) (01-01-2015)“…[Display omitted] •Resolved zero-field NMR spectra obtained for bulk ethylene glycol.•Relaxation times and spin–spin couplings vary with temperature and water…”
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Polarized nuclear target based on parahydrogen induced polarization
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-12-2012)“…We discuss a novel concept of a polarized nuclear target for accelerator fixed-target scattering experiments, which is based on parahydrogen induced…”
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Numerical and experimental studies of long-range magnetic dipolar interactions
Published in The Journal of chemical physics (15-07-2004)“…We describe several numerical methods developed to analyze the behavior of spin polarized liquids in the presence of long-range magnetic dipolar interactions…”
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Production and detection of atomic hexadecapole at Earth's magnetic field
Published in Optics express (21-07-2008)“…Optical magnetometers measure magnetic fields with extremely high precision and without cryogenics. However, at geomagnetic fields, important for applications…”
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