Abstract
We have measured the upper critical field of (La.925Ba.075)2CuO4-y in the range from 0 to 30 Tesla in the hybrid magnet at the Francis Bitter National Magnet Lab. The resistive transition in zero field onsets above 3 OK, with .9Rn at 29K, .1Rn at 27K and 0 below 24K (Rn = R(3 4K). Following the II-T curves for different fractions of Rn we find substantial differences in the temperature dependence of the apparent critical field. However, for (H,T)=.9Rn there is good agreement with simple pairbreaking behavior with an extrapolated Hc2(0) of 46 Tesla. At 4K there is no measurable resistance to 30 Tesla.
Original language | English |
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Pages (from-to) | 531-533 |
Number of pages | 3 |
Journal | Solid State Communications |
Volume | 62 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1987 May |
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry