التفاصيل البيبلوغرافية
| العنوان: |
Origin of Diversified Transport Properties of MgB[sub 2]. |
| المؤلفون: |
Kim, Kijoon H.P., Jung, C.U., Heon-Jung Kim, Min-Seok Park, C.U., Mun-Seog Kim, Kyung Hee Kim, C.U., Sung-Ik Lee, Kim, K.H., Betts, J.B., Jaime, M., Lacerda, A.H., Boebinger, G.S. |
| المصدر: |
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics; 8/10/2003, Vol. 17 Issue 18-20, p3672, 3p |
| مصطلحات موضوعية: |
MAGNESIUM compounds, THIN films, MAGNETORESISTANCE |
| مستخلص: |
We investigated the transport properties of MgB[sub 2] while changing the contents of excess Mg. The samples containing almost no excess Mg showed the highest T[sub c] and the sharpest transition width (ΔT[sub c]). A residual resistivity ratio (RRR) of ~ 5.8, and a magnetoresistance (MR) of 12%, at 40 K, were obtained for this stoichiometric sample. Moreover, no upturn of resistivity in a low temperature region at 10 Tesla was observed. However, the samples containing appreciable amounts of excess Mg showed quite different behaviors; the values of ΔT[sub c], RRR and MR were much larger. Surprisingly, big upturn appeared in this Mg-excess MgB[sub 2] [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
