|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Attempts to test an alternative electrodynamic theory of superconductors by low-temperature scanning tunneling and atomic force microscopy | | Angelo Peronio
; Franz J. Giessibl
; | | Date: |
18 Jul 2016 | | Abstract: | We perform an experiment to test between two theories of the electrodynamics
of superconductors: the standard London theory and an alternative proposed by
J. E. Hirsch. The two alternatives give different predictions with respect to
the screening of an electric field by a superconductor, and we try to detect
this effect using atomic force microscopy on a niobium sample. We also perform
the reverse experiment, where we demonstrate that a superconductive tip mounted
on a qPlus force sensor with its piezoelectric detection mechanism remains
superconductive, a feat that would be difficult with piezoresistive or optical
detection, where heat dissipation close to the tip is a challenge. Due to
limited accuracy, we are able neither to prove nor to disprove Hirsch’s
hypothesis. Within our accuracy of 0.17 N/m, the superconductive transition
does not alter the atomic-scale interaction between tip and sample. | | Source: | arXiv, 1607.5060 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER