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Sample rod for transmission electron microscope added with magnetic field

A technology of electron microscope and sample rod, which is applied in the direction of circuits, discharge tubes, electrical components, etc., and can solve problems such as electron beam deflection

Active Publication Date: 2012-12-12
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sample rod can solve the problem of electron beam deflection, and can load current for a long time to generate a continuous magnetic field

Method used

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  • Sample rod for transmission electron microscope added with magnetic field
  • Sample rod for transmission electron microscope added with magnetic field
  • Sample rod for transmission electron microscope added with magnetic field

Examples

Experimental program
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Embodiment Construction

[0030] The content of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 and figure 2As shown, the transmission electron microscope sample rod of the present invention includes a shaft part and a head frame 1, the sample is carried in the head frame 1, and the incident electron beam shoots to the sample from a direction substantially perpendicular to the plane where the head frame 1 is located, And can penetrate through the head frame 1 . The head frame 1 has a first end 101 and a second end 102 along the length extension direction of the sample rod. A stage 103 is provided in the head frame 1 near the first end 101 of the head frame. The stage 103 is used to carry the sample 7 and is provided with a channel for the incident electron beam to pass through. A first magnetic coil (not shown in the figure) is arranged in the head frame 1 close to the second end 102 of the head frame,...

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PUM

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Abstract

The invention discloses a sample rod for a transmission electron microscope added with a magnetic field. The sample rod comprises a head frame, a carrier, a first magnetic coil and a second magnetic coil, wherein the head frame is provided with a first end part and a second end part along the length extending direction of the sample rod; the carrier is used for carrying a sample and is provided with a channel; an incident electron beam can pass through the channel; the carrier is arranged in the head frame and is close to the first end part of the head frame; the first magnetic coil is arranged in the head frame and is close to the second end part of the head frame; when the current is generated, a first magnetic field is generated by the first magnetic coil; the first magnetic field has a magnetizing effect on the sample; the second magnetic coil is arranged in the head frame and is close to the second end part of the head frame; the second magnetic coil is located under the first magnetic coil; when the current is generated, a second magnetic field is generated by the second magnetic coil; and under the action of the second magnetic field, the electron beam which deflects under the action of the first magnetic field deflects toward an incident direction. The sample rod provided by the invention can be used for researching the change in a magnetic domain of a magnetic material under the action of an externally added magnetic field.

Description

technical field [0001] The invention relates to transmission electron microscope accessories, more specifically, to a transmission electron microscope sample rod capable of applying a magnetic field. Background technique [0002] With the advancement of technology and the increasing demand of material science research, in situ electron microscopy research has become one of the main directions of electron microscopy development, and a large number of research results have emerged in recent years. Major electron microscope manufacturers have launched their own sample holders for in situ research, and the strong research demand even gave birth to high-tech companies (such as the famous Nanofactory Corp., etc.) that specialize in the manufacture of various in situ sample holders. Currently, most of the in-situ sample rods that can be purchased in the market are micro-manipulation, variable temperature zones, electric fields (including electrical signal measurement), and force ad...

Claims

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Application Information

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IPC IPC(8): H01J37/20H01J37/26
Inventor 杨新安姚湲段晓峰田焕芳
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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