Mechanism for Magnetic Flux Generation in Grain Boundaries of YBCO
M. B. Walker
TL;DR
This paper investigates the mechanisms behind magnetic flux generation in YBCO grain boundaries, highlighting the significant role of twin boundaries alongside existing explanations involving d-wave superconductivity and faceting.
Contribution
It introduces the importance of twin boundaries in magnetic flux generation in YBCO grain boundaries, expanding previous models.
Findings
Twin boundaries significantly influence flux generation.
Existing models involving d-wave order parameter and faceting are complemented.
Enhanced understanding of flux behavior in YBCO materials.
Abstract
The spontaneously generated magnetic flux observed by Mannhart et. al. (1996) in 45 degree grain boundaries in YBCO was explained by them in terms of a d-wave superconducting order parameter and grain boundary faceting. This article argues that twin boundaries which contact the grain boundary also play an important role.
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