Selective electron spin resonance measurements of micrometer-scale thin samples on a substrate

@article{Dikarov2013SelectiveES,
  title={Selective electron spin resonance measurements of micrometer-scale thin samples on a substrate},
  author={Ekaterina Dikarov and Matthias J. Fehr and Alexander Schnegg and Klaus Lips and Aharon Blank},
  journal={Measurement Science and Technology},
  year={2013},
  volume={24},
  pages={115009}
}
An approach to the selective observation of paramagnetic centers in thin samples or surfaces with electron spin resonance (ESR) is presented. The methodology is based on the use of a surface microresonator that enables the selective obtention of ESR data from thin layers with minimal background signals from the supporting substrate. An experimental example is provided, which measures the ESR signal from a 1.2 µm polycrystalline silicon layer on a glass substrate used in modern solar-cell… Expand

Figures and Tables from this paper

Superconducting micro-resonators for electron spin resonance - the good, the bad, and the future
The field of electron spin resonance is in constant need to improve its capabilities. Among other things, this means having better resonators which would provide improved spin sensitivity, as well asExpand
Recent trends in high spin sensitivity magnetic resonance.
TLDR
The conclusion from this comparison is that induction detection is still indispensable, and as such, it is very important to look for ways to significantly improve it. Expand

References

SHOWING 1-10 OF 28 REFERENCES
Cryogenic electron spin resonance microimaging probe.
TLDR
Experimental results demonstrate the system's capability to acquire two - as well as three-dimensional images with a flat test sample of phosphorus-doped silicon, and verify the resonator's resonance mode - they show its B(1) distribution, which makes it possible to estimate the number of spins measured in the sample. Expand
Electronic spin detection in molecules using scanning-tunneling- microscopy-assisted electron-spin resonance
By combining the spatial resolution of a scanning-tunneling microscope (STM) with the electronic spin sensitivity of electron-spin resonance, we show that it is possible to detect the presence ofExpand
Scaling of sensitivity and efficiency in planar microresonators for electron spin resonance.
TLDR
A series of planar microresonators are described that show large improvements over conventional ESR resonators in terms of microwave conversion efficiency (microwave field strength for a given input power) and sensitivity (minimum number of detectable spins). Expand
Note: High sensitivity pulsed electron spin resonance spectroscopy with induction detection.
TLDR
Through the use of a new type of surface loop-gap microresonators (inner size of 20 μm), operating at cryogenic temperatures at a field of 0.5 T, one can improve upon this sensitivity barrier by more than 2 orders of magnitude and reach spin sensitivities of ~1.5 × 10(6) spins/√Hz or ~2.5× 10(4) spins for 1 h. Expand
Scanned-probe detection of electron spin resonance from a nitroxide spin probe
TLDR
An approach that extends the applicability of ultrasensitive force-gradient detection of magnetic resonance to samples with spin-lattice relaxation times (T 1) as short as a single cantilever period is reported, suggesting that it is well suited to push magnetic resonance detection and imaging of nitroxide spin labels in an individual macromolecule to single-spin sensitivity. Expand
Ultra miniature resonators for electron spin resonance: Sensitivity analysis, design and construction methods, and potential applications
This paper describes a recently developed new family of miniature surface resonators, used for electron spin resonance spectroscopy and imaging. The first part of the paper provides a detailedExpand
Superconducting coplanar waveguide resonators for low temperature pulsed electron spin resonance spectroscopy.
TLDR
The design and implementation of thin film superconducting coplanar waveguide micro-resonators for pulsed electron spin resonance experiments are discussed and the effect of the nonuniform microwave magnetic field on the Hahn echo power dependence is discussed. Expand
An electron paramagnetic resonance study of defects in PECVD silicon oxides
Electron paramagnetic resonance (EPR) has been used to determine how the type and population of paramagnetic defects are altered firstly by changes to the composition of oxides grown on silicon byExpand
High-sensitivity Q-band electron spin resonance imaging system with submicron resolution.
TLDR
A pulsed electron spin resonance (ESR) microimaging system operating at the Q-band frequency range is presented, and potential applications range from the imaging of point defects in crystals and semiconductors to measurements of oxygen concentration in biological samples. Expand
Theory of time-domain measurement of spin-dependent recombination with pulsed electrically detected magnetic resonance
The theoretical foundations of the time domain measurement of spin-dependent charge carrier recombination by means of pulsed electrically detected magnetic resonance (EDMR) are outlined. Pulsed EDMRExpand
...
1
2
3
...