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A high-frequency oscillator based on superconducting nanowires and its preparation method

A high-frequency oscillator and superconducting nanowire technology, which is applied in the manufacture/processing of superconductor devices, superconducting devices, electrical components, etc., can solve problems such as low oscillation frequency, complicated preparation process, and difficult control, and achieve The effect of simple control and simple preparation process

Active Publication Date: 2015-08-19
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a high-frequency oscillator based on superconducting nanowires and its preparation method, which is used to solve the problems of complex preparation process, complex structure and difficult control in the prior art. , and the problem of low oscillation frequency

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  • A high-frequency oscillator based on superconducting nanowires and its preparation method
  • A high-frequency oscillator based on superconducting nanowires and its preparation method
  • A high-frequency oscillator based on superconducting nanowires and its preparation method

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Embodiment 1

[0055] The present invention provides a high-frequency oscillator 6 structure based on superconducting nanowires, such as figure 1 shown, including at least:

[0056]The coplanar waveguide 5 includes a dielectric substrate 1, a central conductor strip 2 located on the dielectric substrate 1 and used as a positive electrode, and a ground conductor 3 located on the dielectric substrate 1 and used as a negative electrode; in this embodiment Among them, the dielectric substrate 1 is temporarily selected as MgO, but it is not limited thereto. In other embodiments, the dielectric substrate 1 can also be Si, sapphire, or LaAlO 3 One of them is hereby stated.

[0057] The nanowire 4 is connected to the positive and negative electrodes of the coplanar waveguide 5; the material of the nanowire 4 is a superconducting material. In this embodiment, the superconducting material is temporarily selected as NbN, but it is not limited thereto. In other embodiments, the superconducting materia...

Embodiment 2

[0069] Such as Figures 5a to 5e , the present invention also provides a method for preparing a high-frequency oscillator based on superconducting nanowires, the preparation method at least including the following steps:

[0070] Step 1: If Figure 5a Shown is a cross-sectional view of this step, providing a dielectric substrate 11. In this embodiment, the dielectric substrate 1 is tentatively selected as MgO, but it is not limited thereto. In other embodiments, the dielectric substrate 1 Sheet 1 can also be Si, sapphire, or LaAlO 3 One of them, it is hereby stated that the dielectric substrate 11 can select different substrate materials according to different films, and then deposit a layer of superconducting thin film 12 on the dielectric substrate 11, and the material of the superconducting thin film 12 can be Select various low-temperature and high-temperature superconducting materials. In this embodiment, the superconducting material is temporarily selected as NbN, but ...

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Abstract

The invention provides a high-frequency oscillator based on a superconductive nanowire and a preparation method thereof. The oscillator comprises a coplanar waveguide and a superconductive nanowire positioned between a center conductor belt and a grounding conductor of the coplanar waveguide, and the implementation principle of the oscillator is based on the self-heating relaxation effect characteristic of the nanowire structure made from an ultrathin superconductive material. The oscillator manufactured by adopting the method provided by the invention has a simple process and structure, and dispenses with a multi-layer superconductive film and a superconductive Josephson junction with complex structure and high difficulty in preparation in comparison with a superconductive Josephson oscillator. The high-frequency oscillator is simple in control, does not require an additional magnetic field and can achieve high-frequency oscillation only through controlling the bias voltage of the oscillator. The principle of the oscillator is applicable to all the superconductive materials including various high-temperature superconductive materials and low-temperature superconductive materials.

Description

technical field [0001] The invention relates to an oscillator and a preparation method thereof, in particular to a high-frequency oscillator based on superconducting nanowires and a preparation method thereof. Background technique [0002] Oscillators are very important electronic components. Widely used in electronics, medical and scientific research and so on. A high-frequency oscillator refers to an oscillator with a relatively high oscillation frequency. Utilizing a variety of special physical properties of superconducting materials, high-frequency oscillating output signals can be realized. This type of oscillator is called a superconducting oscillator. Currently realized superconducting oscillators mainly include superconducting Josephson effect oscillators and superconducting magnetic flux oscillators. The superconducting Josephson effect oscillator is an oscillator based on the superconducting Josephson effect, which has the advantage of high oscillation frequency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L39/00H01L39/24H10N60/00H10N60/01
Inventor 尤立星刘登宽陈思井杨晓燕谢晓明江绵恒
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI