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Ic vs field perpendicular to ab plane-two samples cut from what we got

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Presentation on theme: "Ic vs field perpendicular to ab plane-two samples cut from what we got"— Presentation transcript:

1 Ic vs field perpendicular to ab plane-two samples cut from what we got
We had to cut because of space limit in our rotator

2 Angular dependence @ B=4 T
After this measurement we try to measure angular dependence at 20 T but sample broke – including hastelloy

3 Comparison to other samples containing BZO
sample M MS norm to 12mm, thickness 2.15 um sample M MS norm to 12 mm thickness 1.5 um

4 The same on log-log scale
sample M MS norm to 12mm, thickness 2.15 um sample M MS norm to 12 mm thickness 1.5 um

5 Omparision with sample M3-609-1-MS (it is normalized to 4 mm width!)
It seems that at least at B=4T tape 2140 has wider ab peak that the other one And smaller anisotropy. sample M MS norm to 4mm, thickness 2.15 um

6 It would be interesting to have higher fields angular dependence for the present tape
But two samples broke when we attempted to measure them at higher field/higher angles In the past we had similar problems with other samples : degradation, delamination or even total Break . Especially with the samples without copper coating.as tapes , and So we faild to check if the present tape has also this cusp-like behavior around ab plane as sample M MS shown below-this was the most robust sample we measure so far

7 1 modify the probe: holders to thin? To short?
2 make straight probe for perpendicular measurements 3 find good flux for In and Sn/Pb 4 to find how we can mount samples other than SP tapes? 5 AMSC samples at A/cm-wide SF ???


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