A scanning tunneling microscope structure using motor-scanning head separation technology

A separation technology and scanning tunneling technology, applied in the field of scanning tunneling microscope structure, to achieve the effect of clear imaging and preventing thermal drift
CN106932611BActive Publication Date: 2019-06-14SOUTHEAST UNIV
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2019-06-14

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a novel scanning tunneling microscope design structure using a motor-scanning head separation technique. A motor and a scanning head are separated, the scanning head is clamped at a guide rail independently by a spring piece, and the motor is responsible for pushing the scanning head to a tunnel current zone; and then the scanning head retreats autonomously. The scanning head is composed of a probe, a probe rack, a scanning tube, a corundum pedestal, and a corundum pipe and the like. Therefore, influences on imaging of the scanning head by interference factors like thermal drift and electric fluctuating caused by the motor can be prevented and thus imaging becomes clear.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of scanning tunneling microscopes, in particular to a scanning tunneling microscope structure using a motor-scanning head separation technology. Background technique

[0002] Scanning Tunneling Microscope (STM) is an important instrument that uses quantum tunneling effect to observe the surface morphology of samples. Because of its ultra-high real-space resolution ability, it is widely used in material property characterization, electrochemical measurement, biological imaging, etc. science field. Since the STM needs to collect extremely weak current signals during operation, the penetration of any tiny sound or vibration will have a serious impact on the stability of the tunnel junction. The scanning head and the stepping motor of the widely used STM are directly connected, and the interference on the motor (such as thermal drift, electric fluctuation, etc.) will be transmitted to the tunnel current, thereb...

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