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Magnetic resonance with ensembles of electron spins is nowadays performed in frequency ranges up to 240 GHz and in corresponding magnetic fields of up to 10 T. However, experiments with single electron and nuclear spins so far only reach…

A theory of low temperature (T) electron spin resonance (ESR) in half-integer spin antiferromagnetic chains is developed using field theory methods and avoiding previous approximations. It is compared to experiments on Cu benzoate. Power…

强关联电子 · 物理学 2009-10-31 Masaki Oshikawa , Ian Affleck

High frequency electron spin resonance (ESR) spectroscopy is an invaluable tool for identification and characterization of spin systems. Nanoscale ESR using the nitrogen-vacancy (NV) center has been demonstrated down to the level of a…

介观与纳米尺度物理 · 物理学 2020-05-05 Benjamin Fortman , Junior Pena , Karoly Holczer , Susumu Takahashi

Electron spin resonance (ESR) spectroscopy is the method of choice for characterizing paramagnetic impurities, with applications ranging from chemistry to quantum computing, but it gives access only to ensemble-averaged quantities due to…

Electron spin resonance with a scanning tunneling microscope (ESR-STM) combines the high energy resolution of spin resonance spectroscopy with the atomic scale control and spatial resolution of STM. Here we describe the upgrade of a…

On-chip Electron Spin Resonance (ESR) of magnetic molecules requires the ability to precisely position nanosized samples in antinodes of the electro-magnetic field for maximal magnetic interaction. A method is developed to entrap…

介观与纳米尺度物理 · 物理学 2009-08-28 N. Groll , S. Bertaina , M. Pati , N. S. Dalal , I. Chiorescu

We report measurements of electron spin echo envelope modulation (ESEEM) performed at millikelvin temperatures in a custom-built high-sensitivity spectrometer based on superconducting micro-resonators. The high quality factor and small mode…

We present three designs for planar superconducting microwave resonators for electron spin resonance (ESR) experiments. We implement finite element simulations to calculate the resonance frequency and quality factors as well as the…

介观与纳米尺度物理 · 物理学 2019-08-21 Stefan Weichselbaumer , Petio Natzkin , Christoph W. Zollitsch , Mathias Weiler , Rudolf Gross , Hans Huebl

We report on electron spin resonance spectroscopy measurements using a superconducting flux qubit with a sensing volume of 6 fl. The qubit is read out using a frequency-tunable Josephson bifurcation amplifier, which leads to an inferred…

量子物理 · 物理学 2020-05-13 Rangga P. Budoyo , Kosuke Kakuyanagi , Hiraku Toida , Yuichiro Matsuzaki , Shiro Saito

We report electron spin resonance (ESR) measurements on a large-area silicon MOSFET. An ESR signal at g-factor 1.9999(1), and with a linewidth of 0.6 G, is observed and found to arise from two-dimensional (2D) electrons at the Si/SiO2…

材料科学 · 物理学 2009-12-20 S. Shankar , A. M. Tyryshkin , S. Avasthi , S. A. Lyon

We report an electron spin resonance (ESR) study of the s=1/2-Heisenberg pseudo-ladder magnet CaCu2O3 in pulsed magnetic fields up to 40 T. At sub-Terahertz frequencies we observe an ESR signal originating from a small amount of…

强关联电子 · 物理学 2009-11-11 M. Goiran , M. Costes , J. M. Broto , F. C. Chou , R. Klingeler , E. Arushanov , S. -L. Drechsler , B. Büchner , V. Kataev

We present a broadband microwave setup for electrically detected magnetic resonance (EDMR) based on microwave antennae with the ability to apply arbitrarily shaped pulses for the excitation of electron spin resonance (ESR) and nuclear…

介观与纳米尺度物理 · 物理学 2015-05-20 F. M. Hrubesch , G. Braunbeck , A. Voss , M. Stutzmann , M. S. Brandt

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…

应用物理 · 物理学 2021-05-04 Subhadip Roy , Anuvab Nandi , Pronoy Das , Chiranjib Mitra

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…

应用物理 · 物理学 2020-12-16 Subhadip Roy , Anuvab Nandi , Pronoy Das , Chiranjib Mitra

Direct electron spin resonance (ESR) on a high mobility two dimensional electron gas in a single AlAs quantum well reveals an electronic $g$-factor of 1.991 at 9.35 GHz and 1.989 at 34 GHz with a minimum linewidth of 7 Gauss. The ESR…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Schulte , J. G. S. Lok , G. Denninger , W. Dietsche

We present pulsed electrically detected magnetic resonance (EDMR) measurements at low magnetic fields using posphorus-doped silicon with natural isotope composition as a model system. Our measurements show that pulsed EDMR experiments, well…

材料科学 · 物理学 2015-06-23 L. Dreher , F. Hoehne , H. Morishita , H. Huebl , M. Stutzmann , K. M. Itoh , M. S. Brandt

In this paper we propose that electron spin resonance (ESR) measurements enable us to detect the long-range spin nematic order. We show that the frequency of the paramagnetic resonance peak in the ESR spectrum is shifted by the…

强关联电子 · 物理学 2018-03-22 Shunsuke C. Furuya , Tsutomu Momoi

Coherence times of electron spins bound to phosphorus donors have been measured, using a standard Hahn echo technique, to be up to 20 ms in isotopically pure silicon with [P]$ = 10^{14}$ cm$^{-3}$ and at temperatures $\leq 4 $K. Although…

介观与纳米尺度物理 · 物理学 2020-12-29 Philipp Ross , Brendon C. Rose , Cheuk C. Lo , Mike L. W. Thewalt , Alexei M. Tyryshkin , Stephen A. Lyon , John J. L. Morton

Multi-frequency electron spin resonance (ESR) transmission spectra have been measured as function of temperature and magnetic field on single crystals of the quasi-one-dimensional spin-1 chain compound SrNi2V2O8 in the GHz frequency range.…

强关联电子 · 物理学 2013-03-18 Zhe Wang , M. Schmidt , A. K. Bera , A. T. M. N. Islam , B. Lake , A. Loidl , J. Deisenhofer

We present simulations and analytic calculations of the electromagnetic microwave fields of coplanar waveguide (CPW) resonators in the vicinity of highly conducting metallic samples. The CPW structures are designed with the aim of…

介观与纳米尺度物理 · 物理学 2015-06-23 Conrad Clauss , Martin Dressel , Marc Scheffler