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A Study of Two-Dimensional Supercond...

Shi, Aoshuang,

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A Study of Two-Dimensional Superconductors with Scanning-Squid Microscopy /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	A Study of Two-Dimensional Superconductors with Scanning-Squid Microscopy // Aoshuang Shi.
作者:	Shi, Aoshuang,
面頁冊數:	1 electronic resource (150 pages)
附註:	Source: Dissertations Abstracts International, Volume: 86-02, Section: B.
Contained By:	Dissertations Abstracts International86-02B.
標題:	Crystal structure. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31194569
ISBN:	9798383706855

A Study of Two-Dimensional Superconductors with Scanning-Squid Microscopy /
Shi, Aoshuang,

A Study of Two-Dimensional Superconductors with Scanning-Squid Microscopy /Aoshuang Shi. - 1 electronic resource (150 pages)

Source: Dissertations Abstracts International, Volume: 86-02, Section: B.

Superconductors, with characteristic zero-resistance, Messier screening, and phase coherence at low temperatures, find applications in power transmission, high-speed transportation, and quantum computing. The warmest ambient pressure superconductor to date has a transition temperature of 100 Celsius below room temperature. Finding room-temperature superconductors is the holy grail. In order to achieve that, it is necessary to understand the superconducting mechanism through careful characterization of existing superconductors.In recent years, we have witnessed the discovery of several new superconducting systems. The infinite-layer nickelate, a structural analogy of the famous cuprates, was achieved through topotactic reduction. The twisted few-layer graphene systems displayed complex phase diagrams similar to the cuprates. The monolayer transition-metal dichalcogenide showed evidence of topological superconductivity. In addition, straining well-established high-temperature superconductors such as cuprates was found to enhance the critical temperature. The ever-so-vibrant research on superconductivity opens new possibilities for deciphering the mechanism of these strongly correlated electron systems.This thesis presents scanning SQUID microscopy (SSM) imaging of the above-mentioned superconductors. The SSM visualizes mesoscopic magnetic structures that cannot be seen in transport measurements. Our results break assumptions that might be used to extrapolate useful physical quantities in bulk measurements. Applying a local field, the SSM directly probes the local superfluid density, revealing spatial inhomogeneity and its interplay with intrinsic magnetic structures, namely vortices.

English

ISBN: 9798383706855Subjects--Topical Terms:

3561040
Crystal structure.

A Study of Two-Dimensional Superconductors with Scanning-Squid Microscopy /
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