The effect of magnesium vacancies on the intraband scattering in MgxB2 as determined by point contact Andreev reflection

Yates, Karen A. and Miyoshi, Y. and Grunwell, J. and Riggall, K. and Cohen, L. F. and Chen, Soo Kien and MacManus Driscoll, Judith L. and Serquis, Adriana (2007) The effect of magnesium vacancies on the intraband scattering in MgxB2 as determined by point contact Andreev reflection. Applied Physics Letters, 91 (9). pp. 122501-1. ISSN 0003-6951

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Official URL: http://dx.doi.org/10.1063/1.2786019

Abstract

In order to introduce structural defects into the band with minimal distortions in the band, bulk samples of varying magnesium content were prepared. Point contact Andreev reflection measurements reveal that the density of states of the band and the behavior of the energy gaps in field imply a relative increase of band to band scattering with increasing magnesium deficiency. The results are consistent with the observed increase of the low temperature Hc2 value in magnesium deficient MgB2.

Item Type:Article
Keyword: band,Andreev reflection,magnesium deficient MgB2
Faculty or Institute:Faculty of Science
Publisher:American Institute of Physics
DOI Number:10.1063/1.2786019
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1063/1.2786019
ID Code:7441
Deposited By: Najwani Amir Sariffudin
Deposited On:29 Jun 2010 07:32
Last Modified:27 May 2013 07:35

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