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Title: Flux pinning and magnetic order in the [RE]Ni₂B₂C superconductors
Author: James, Sebastian Scott
Awarding Body: University of Cambridge
Current Institution: University of Cambridge
Date of Award: 2001
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Local Hall probe measurements of the superconducting and magnetically ordered [RE]Ni2B2C series of materials are presented. These include HoNi2B2C, ErNi2B2C TmNi2B2C and YNi2B2C. Measurements in YNi2B2C are presented as a non-magnetic control member of the series against which the data from the magnetically ordered members may be compared. In HoNi2B2C an α-axis incommensurate order is confirmed to cause a dramatic enhancement of bulk pinning between around 5 K and 6 K. Samples of low quality show no evidence of such an enhancement, although these poorer samples show a higher intensity of incommensurate magnetic ordering.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available