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Hyperfine interactions between electron and nuclear spins have been widely used in material science, organic chemistry, and structural biology as a sensitive probe to the local chemical environment through spatial identification of nuclear…

Mesoscale and Nanoscale Physics · Physics 2022-12-28 Jinkyung Kim , Kyungju Noh , Yi Chen , Fabio Donati , Andreas J. Heinrich , Christoph Wolf , Yujeong Bae

We present the design and implementation of a scanning probe microscope, which combines electrically detected magnetic resonance (EDMR) and (photo-)conductive atomic force microscopy ((p)cAFM). The integration of a 3-loop 2-gap X-band…

We propose a new technique for the detection of single atoms in ultracold quantum gases. The technique is based on scanning electron microscopy and employs the electron impact ionization of trapped atoms with a focussed electron probe.…

Statistical Mechanics · Physics 2007-05-23 T. Gericke , C. Utfeld , N. Hommerstad , H. Ott

We present the first findings of the new electrically-detected electron spin resonance technique (EDESR), which reveal the point defects in the ultra-narrow silicon quantum wells (Si-QW) confined by the superconductor delta-barriers. This…

We report the first study of the micro-SQUID response of a molecular system to electromagnetic radiation. The advantages of our micro-SQUID technique in respect to pulsed electron paramagnetic resonance (EPR) techniques consist in the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 W. Wernsdorfer , A. Mueller , D. Mailly , B. Barbara

Single spin detection is a key objective in the field of metrology. There have been many experimental and theoretical investigations for the spin detection based on the use of probe spins. A probe spin shows the precession due to…

Quantum Physics · Physics 2017-08-01 Syuhei Uesugi , Yuichiro Matsuzaki , Suguru Endo , Shiro Saito , Junko Ishi-Hayase

We propose a model to account for the observed ESR-like signal at the Larmor frequency in the current noise STM experiments identifying spin centers on various substrates. The theoretical understanding of this phenomenon, which allows for…

Mesoscale and Nanoscale Physics · Physics 2014-02-19 Alvaro Caso , Baruch Horovitz , Liliana Arrachea

We consider an electronic spin, such as a nitrogen-vacancy (NV) center in diamond, weakly coupled to a large number (bath) of nuclear spins, and subjected to the Rabi driving with a periodically alternating phase (multiple rotary echo). We…

Mesoscale and Nanoscale Physics · Physics 2015-03-25 V. V. Mkhitaryan , F. Jelezko , V. V. Dobrovitski

Mapping the positions of single electron spins is a highly desired capability for applications such as nanoscale magnetic resonance imaging and quantum network characterization. Here, we demonstrate a method based on rotating an external…

Mesoscale and Nanoscale Physics · Physics 2022-11-11 Dan Yudilevich , Rainer Stöhr , Andrej Denisenko , Amit Finkler

We have observed a nearly fourfold increase in the electron spin resonance (ESR) signal from an ensemble of single-walled carbon nanotubes (SWCNTs) due to oxygen desorption. By performing temperature-dependent ESR spectroscopy both before…

Materials Science · Physics 2012-05-08 W. D. Rice , R. T. Weber , A. D. Leonard , J. M. Tour , P. Nikolaev , S. Arepalli , V. Berka , A. -L. Tsai , J. Kono

We make the first study the optical energy level structure and interactions of pairs of single rare earth ions using a hybrid electro-optical detection method applied to Er-implanted silicon. Two examples of Er3+ pairs were identified in…

Rare-earth related electron spins in crystalline hosts are unique material systems, as they can potentially provide a direct interface between telecom band photons and long-lived spin quantum bits. Specifically, their optically accessible…

Quantum Physics · Physics 2020-05-06 Thomas Kornher , Da-Wu Xiao , Kangwei Xia , Fiammetta Sardi , Nan Zhao , Roman Kolesov , Jörg Wrachtrup

In this work, we study the development of a coplanar waveguide (CPW) resonator and its use in an electron spin resonance (ESR) spectrometer. The CPW resonator is designed to operate in S-band. It has a short circuit configuration which…

Applied Physics · Physics 2020-12-16 Subhadip Roy , Anuvab Nandi , Pronoy Das , Chiranjib Mitra

Hybrid spin-mechanical systems are a promising platform for future quantum technologies. Usually they require application of additional microwave fields to project integer spin to a readable state. We develop a theory of optically detected…

Mesoscale and Nanoscale Physics · Physics 2019-09-18 A. V. Poshakinskiy , G. V. Astakhov

Quantum dots patterned by atomically precise placement of phosphorus donors in single crystal silicon have long spin lifetimes, advantages in addressability, large exchange tunability, and are readily available few-electron systems. To be…

Mesoscale and Nanoscale Physics · Physics 2016-07-06 Yu Wang , Chin-Yi Chen , Gerhard Klimeck , Michelle Y. Simmons , Rajib Rahman

We applied a tabletop, ultrafast, high-harmonic generation (HHG) source to measure the element-specific ferromagnetic resonance (FMR) in ultra-thin magnetic alloys and multilayers on an opaque Si substrate. We demonstrate a continuous wave…

Materials Science · Physics 2024-04-25 Michael Tanksalvala , Anthony Kos , Jacob Wisser , Scott Diddams , Hans T. Nembach , Justin M. Shaw

It is proposed that nuclear (or electron) spins in a trapped molecule would be well isolated from the environment and the state of each spin can be measured by means of mechanical detection of magnetic resonance. Therefore molecular traps…

Quantum Physics · Physics 2007-05-23 Haiqing Wei , Xin Xue

The ability to sensitively image electric fields is important for understanding many nanoelectronic phenomena, including charge accumulation at surfaces and interfaces and field distributions in active electronic devices. A particularly…

Mesoscale and Nanoscale Physics · Physics 2023-02-14 William S. Huxter , Martin F. Sarott , Morgan Trassin , Christian L. Degen

The quest to enhance the sensitivity of electron spin resonance (ESR) is an ongoing challenge. One potential strategy involves increasing the frequency, for instance, moving from Q-band (approximately 35 GHz) to W-band (approximately 94…

Chemical Physics · Physics 2024-11-22 Moamen Jbara , Oleg Zgadzai , Wolfgang Harneit , Aharon Blank

A promising technique for measuring single electron spins is magnetic resonance force microscopy (MRFM), in which a microcantilever with a permanent magnetic tip is resonantly driven by a single oscillating spin. If the quality factor of…

Quantum Physics · Physics 2013-05-29 Shesha Raghunathan , Todd A. Brun , Hsi-Sheng Goan
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