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Electron spin echo envelope modulation (ESEEM) has been observed for the first time from a coupled hetero-spin pair of electron and nucleus in liquid solution. Previously, modulation effects in spin echo experiments have only been described…

We demonstrate electron spin polarization detection and electron paramagnetic resonance (EPR) spectroscopy using a direct current superconducting quantum interference device (dc-SQUID) magnetometer. Our target electron spin ensemble is…

Mesoscale and Nanoscale Physics · Physics 2024-06-24 Hiraku Toida , Yuichiro Matsuzaki , Kosuke Kakuyanagi , Xiaobo Zhu , William J. Munro , Kae Nemoto , Hiroshi Yamaguchi , Shiro Saito

Integrated magnetic sensors that allow simultaneous EPR and magnetization measurements have been developed to study single molecule magnets. A high frequency microstrip resonator has been integrated with a micro-Hall effect magnetometer.…

Materials Science · Physics 2009-11-11 G. de Loubens , G. D. Chaves , A. D. Kent , C. Ramsey , E. del Barco , C. Beedle , D. N. Hendrickson

An experimental platform of ultralow-temperature pulsed ENDOR (electron-nuclear double resonance) spectroscopy is constructed for the bulk materials. Coherent property of the coupled electron and nuclear spins of the rare-earth (RE) dopants…

A new method for detecting the magnetic resonance of electronic spins at low temperature is demonstrated. It consists in measuring the signal emitted by the spins with a superconducting qubit that acts as a single-microwave-photon detector,…

Magnetic clock transitions (CTs), defined by vanishing first-order sensitivity of the transition frequency to magnetic field fluctuations, provide a powerful route to suppress decoherence in donor spin systems. Here, we present the…

Electrical detection of spins is an essential tool in understanding the dynamics of spins in semiconductor devices, providing valuable insights for applications ranging from optoelectronics and spintronics to quantum information processing.…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 C. C. Lo , M. Urdampilleta , P. Ross , M. F. Gonzalez-Zalba , J. Mansir , S. A. Lyon , M. L. W. Thewalt , J. J. L. Morton

We experimentally demonstrate a simple and robust protocol for the detection of weak radio-frequency magnetic fields using a single electron spin in diamond. Our method relies on spin locking, where the Rabi frequency of the spin is…

Quantum Physics · Physics 2013-01-14 M. Loretz , T. Rosskopf , C. L. Degen

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

We describe instrumentation for a high-frequency electron paramagnetic resonance (EPR) and pulsed electron-electron double resonance (PELDOR) spectroscopy. The instrumentation is operated in the frequency range of 107$-$120 GHz and…

Instrumentation and Detectors · Physics 2015-06-19 Franklin H. Cho , Viktor Stepanov , Susumu Takahashi

Coherent spin resonance methods, such as nuclear magnetic resonance and electron spin resonance spectroscopy, have led to spectrally highly sensitive, non-invasive quantum imaging techniques. Here, we propose a pump-probe spin resonance…

Quantum Physics · Physics 2024-12-02 Philipp Haslinger , Stefan Nimmrichter , Dennis Rätzel

We report the development of a continuous-wave and pulsed X-band electron spin resonance (ESR) spectrometer for the study of spins on ordered surfaces down to cryogenic temperatures. The spectrometer operates in ultra-high vacuum and…

We describe a quasi-optical multifrequency ESR spectrometer operating in the 75-225 GHz range and optimized at 210 GHz for general use in condensed matter physics, chemistry and biology. The quasi-optical bridge detects the change of mm…

Materials Science · Physics 2012-10-23 Kalman L Nagy , Dario Quintavalle , Titusz Feher , Andras Janossy

The investigation of paramagnetic species (such as point defects, dopants, and impurities) in solid-state electronic devices is significant because of their effect on device performance. Conventionally, these species are detected and imaged…

Materials Science · Physics 2015-05-20 Itai Katz , Matthias Fehr , Alexander Schnegg , Klaus Lips , Aharon Blank

The nitrogen-vacancy (NV) center has enabled widespread study of nanoscale nuclear magnetic resonance (NMR) spectroscopy at low magnetic fields. NMR spectroscopy at high magnetic fields significantly improves the technique's spectral…

Mesoscale and Nanoscale Physics · Physics 2021-09-15 Benjamin Fortman , Laura Mugica-Sanchez , Noah Tischler , Cooper Selco , Yuxiao Hang , Karoly Holczer , Susumu Takahashi

Nanoscale nuclear magnetic resonance (NMR) signals can be measured through hyperfine interaction to paramagnetic electron sensor spins. A heterodyne approach is widely used to overcome the electron spin lifetime limit in spectral…

In this study, novel use of the electromagnetic field profile of a localized spoof surface plasmonic mode to detect electron spin resonance is being reported. The mode is supported on a resonator with a complementary metallic spiral…

Applied Physics · Physics 2021-05-04 Subhadip Roy , Anuvab Nandi , Pronoy Das , Chiranjib Mitra

In this work, we demonstrate the use of frequency-tunable superconducting NbTiN coplanar waveguide microresonators for multi-frequency pulsed electron spin resonance (ESR) experiments. By applying a bias current to the center pin, the…

Quantum Physics · Physics 2017-07-19 A. T. Asfaw , A. J. Sigillito , A. M. Tyryshkin , T. Schenkel , S. A. Lyon

We describe a fully broadband approach for electron spin resonance (ESR) experiments where it is possible to not only tune the magnetic field but also the frequency continuously over wide ranges. Here a metallic coplanar transmission line…

Dopants in silicon have been studied for many decades using optical and electron spin resonance (ESR) spectroscopy. Recently, new features have been observed in the spectra of dopants in isotopically enriched 28Si since the reduced…

Materials Science · Physics 2015-06-17 S. Shankar , A. M. Tyryshkin , S. A. Lyon