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Electron spin resonance (ESR) spectroscopy has broad applications in physics, chemistry and biology. As a complementary tool, zero-field ESR (ZF-ESR) spectroscopy has been proposed for decades and shown its own benefits for investigating…

Quantum Physics · Physics 2020-02-20 Fei Kong , Pengju Zhao , Xiangyu Ye , Zhecheng Wang , Zhuoyang Qin , Pei Yu , Jihu Su , Fazhan Shi , Jiangfeng Du

We describe a pulsed multi-frequency electron paramagnetic resonance spectrometer operating at several frequencies in the range of 110-336 GHz. The microwave source at all frequencies consists of a multiplier chain starting from a solid…

Quantum Physics · Physics 2008-12-01 Gavin W. Morley , Louis-Claude Brunel , Johan van Tol

Electrically driven spin resonance (EDSR) is an established tool for controlling semiconductor spin qubits. Here, we theoretically study a frequency-mixing variant of EDSR, where two driving tones with different drive frequencies are…

Mesoscale and Nanoscale Physics · Physics 2022-10-21 Zoltán György , András Pályi , Gábor Széchenyi

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…

We report electron spin resonance spectroscopy measurements performed at millikelvin temperatures in a custom-built spectrometer comprising a superconducting micro-resonator at $7$ GHz and a Josephson parametric amplifier. Owing to the…

We present an instrument to perform frequency-domain electron spin resonance (ESR) experiments that is based on coplanar waveguides and field modulation. A large parameter space in frequency (up to 25 GHz), magnetic field (up to 8 T), and…

Instrumentation and Detectors · Physics 2020-02-11 Björn Miksch , Martin Dressel , Marc Scheffler

Reading and manipulating the spin status of single magnetic molecules is of paramount importance both for applicative and fundamental purposes. The possibility to combine Electron Spin Resonance (ESR) and Scanning Tunnelling Microscopy…

Instrumentation and Detectors · Physics 2016-11-15 Paolo Messina , Paolo Sigalotti , Lorenzo Lenci , Matteo Mannini , Stefano Prato , Paolo Pittana , Dante Gatteschi

We present non-conventional electron spin resonance (ESR) experiments using microfabricated superconducting waveguides. We show that a very broad frequency range, from 0.5 to 40 GHz, becomes accessible with a high frequency accuracy of less…

Mesoscale and Nanoscale Physics · Physics 2014-01-13 C. Clauss , D. Bothner , D. Koelle , R. Kleiner , L. Bogani , M. Scheffler , M. Dressel

Recently, a new neutron spectroscopy for the dynamics in complex (bio-) systems has been proposed [A. Benedetto, and G. J. Kearley, Sci. Rep. 6, 34266, (2016)]. This spectroscopy is ideal where only the overall relaxation time in a…

Instrumentation and Detectors · Physics 2017-02-21 Antonio Benedetto , Gordon J. Kearley

Integration of electron spin resonance (ESR) in a scanning tunneling microscope (STM) has enabled an all-electrical control of atomic and molecular spins on solid surfaces with atomic-scale precision and energy resolution beyond thermal…

Mesoscale and Nanoscale Physics · Physics 2025-09-03 Deung-Jang Choi , Soo-hyon Phark , Andreas J. Heinrich , Nicolás Lorente

We describe a broadband ferromagnetic resonance spectrometer for scientific and educational applications with a frequency range up to 30 GHz. It is built with low-cost components available off-the-shelf and utilizes 3D printed parts for…

Materials Science · Physics 2025-05-09 Markus Meinert , Tiago de Oliveira Schneider , Shalini Sharma , Amir Khan

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,…

Microwave superconducting resonators are extensively studied in fields such as quantum computing and electron spin resonance (ESR) spectroscopy. However, the integration of superconducting resonators with feedback mechanisms to create…

Applied Physics · Physics 2025-05-19 R. Russo , A. Chatel , N. Brusadin , R. Yu , R. Farsi , H. Furci , J. Brugger , G. Boero

A novel single-mode resonant structure which enables the rotation of the sample about two orthogonal axes is investigated in view of electron paramagnetic resonance applications. The proposed solution is based on cylindrical nonradiative…

Instrumentation and Detectors · Physics 2009-11-11 G. Annino , M. Cassettari , M. Fittipaldi , M. Martinelli

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…

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…

Mesoscale and Nanoscale Physics · Physics 2019-08-21 Stefan Weichselbaumer , Petio Natzkin , Christoph W. Zollitsch , Mathias Weiler , Rudolf Gross , Hans Huebl

Reconfigurable photonic circuits have applications ranging from next-generation computer architectures to quantum networks, coherent radar and optical metamaterials. However, complete reconfigurability is only currently practical on…

The development of electron spin resonance (ESR) combined with scanning tunneling spectroscopy (STM) is undoubtedly one of the main experimental breakthroughs in surface science of the last decade thanks to joining the extraordinarily high…

Strongly Correlated Electrons · Physics 2022-08-31 Fernando Delgado , Nicolás Lorente

This work focuses on the development of planar microwave resonators which are to be used in electron spin resonance spectroscopic studies. Two half wavelength microstrip resonators of different geometrical shapes, namely straight ribbon and…

Applied Physics · Physics 2020-07-07 Subhadip Roy , Sagnik Saha , Jit Sarkar , Chiranjib Mitra

The electron spin resonance (ESR) of two-dimensional electrons is investigated in a gated GaAs/AlGaAs heterostructure. We found that the ESR resonance frequency can be turned by means of a gate voltage. The front and back gates of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 H. W. Jiang , E. Yablonovitch