Measurement method and measurement system of zero-field paramagnetic resonance

A technology of paramagnetic resonance and measurement method, which is applied in the direction of analysis using electron paramagnetic resonance, etc., can solve problems such as low sensitivity, and achieve the effect of strong detection sensitivity and high spatial resolution

Active Publication Date: 2018-07-27
UNIV OF SCI & TECH OF CHINA
View PDF7 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the low sensitivity of electromagnetic coil detection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Measurement method and measurement system of zero-field paramagnetic resonance
  • Measurement method and measurement system of zero-field paramagnetic resonance
  • Measurement method and measurement system of zero-field paramagnetic resonance

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0088] In this step, the preparation method for providing the probe device includes: first, providing a diamond substrate; then, performing ion implantation on the diamond substrate, annealing in a vacuum environment, and forming NV in the diamond substrate. color heart. Commercial high-purity diamond is used as the base material, and annealing at 800°C will form a certain concentration of NV color centers in the diamond base material. In the technical solution of the present invention, the NV color centers in the diamond are used as probes to target zero-field paramagnetism The resonance spectrum was measured.

[0089] Step S12: placing a target to be measured on the surface of the diamond substrate.

[0090] The target to be measured is placed on the surface of the diamond substrate for ion implantation through physical or chemical means.

[0091] Step S13: selecting a target NV color center in the diamond base material, so that the laser pulse emitted from the optical pat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Wavelengthaaaaaaaaaa
Pulse lengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a measurement method and measurement system of zero-field paramagnetic resonance. According to the measurement method, a paramagnetic resonance spectrum of target electrons ismeasured by utilizing an NV color center in a diamond base material as a probe; a zero-field condition is utilized, adverse effects caused by molecule random orientation can be resisted and the Zeemaneffect generated by an external electric field can be eliminated, so that a needed energy grade structure is directly detected. For example, a space structure of a molecule can be obtained through analyzing an electron-electron fine interaction effect; a local polar environment of the molecule can be obtained through analyzing an electron-nuclear spin superfine interaction effect; a precision displacement device, an optical co-focusing device and an NV color center probe are combined, and the precision displacement device and a co-focusing microscopic device can realize accurate finding and detection of the NV color center; the NV color center is a single-electron probe and has a nano-scale resolution capability, so that a nano-scale detection capability is realized.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance measurement, and more specifically, to a zero-field paramagnetic resonance measurement method and a measurement system. Background technique [0002] Electron paramagnetic resonance (EPR) is a powerful tool for studying paramagnetic substances containing unpaired electrons. The EPR phenomenon was first discovered by the former Soviet physicist E. Zavoisky in 1945. After decades of development, it has been widely used in the fields of physics, chemistry, biology, materials and medicine. However, limited by the low sensitivity of electromagnetic coil detection, the best EPR technology can only detect micron-scale samples. Contents of the invention [0003] In order to solve the above problems, the technical solution of the present invention provides a zero-field paramagnetic resonance measurement method and a measurement system, which greatly improves the measurement accuracy of electr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N24/10
CPCG01N24/10
Inventor 杜江峰王哲成孔飞赵鹏举郑斌王鹏飞石发展荣星
Owner UNIV OF SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap