Cryogenic frequency-domain electron spin resonance spectrometer based on coplanar waveguides and field modulation
| Autor: | Björn Miksch, Martin Dressel, Marc Scheffler |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Physics - Instrumentation and Detectors Materials science Field (physics) business.industry FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) Parameter space 01 natural sciences Spectral line 010305 fluids & plasmas Magnetic field law.invention Optics law Modulation Frequency domain 0103 physical sciences Electron paramagnetic resonance business Instrumentation Sensitivity (electronics) |
| DOI: | 10.48550/arxiv.2001.08460 |
| Popis: | 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 temperature (down to 1.6 K) is accessible. We performed experiments on DPPH (2,2-diphenyl-1-picrylhydrazyl) as a standard to calibrate the field modulation as well as on a carbon fibre sample to estimate the overall sensitivity of the instruments. Spectra of a ruby sample in a broad frequency- and field range at cryogenic temperatures are recorded with and without field modulation. The comparison reveals the improved signal-to-noise ratio achieved by field modulation. Comment: The following article has been accepted by Review of Scientific Instruments. After it is published, it will be found at https://doi.org/10.1063/1.5141461 |
| Databáze: | OpenAIRE |
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