Abstract
We report detailed magnetic measurements in H parallel to the c-axis direction on a single crystal of Nd1.85Ce0.15Cu2O4-y. The magnetization data indicate that the entrance field is determined by surface barriers. At low temperatures, the penetration field Hp(T) can be fit with Hp=Hcexp(-T/T0); at temperature close to Tc, Hp(T) is linear in T. The date can be qualitatively understood by a model where two-dimensional point vortices are thermally nucleated near the surface in weakly coupled layered superconductors.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 12326-12329 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 49 |
| Issue number | 17 |
| DOIs | |
| State | Published - Jan 1 1994 |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Evidence of thermal nucleation of two-dimensional point vortices in single-crystal Nd1.85Ce0.15Cu2O4-y superconductors. / Zuo, Fulin; Khizroev, S.; Jiang, Xiuguang; Peng, J. L.; Greene, R. L.
In: Physical Review B, Vol. 49, No. 17, 01.01.1994, p. 12326-12329.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evidence of thermal nucleation of two-dimensional point vortices in single-crystal Nd1.85Ce0.15Cu2O4-y superconductors
AU - Zuo, Fulin
AU - Khizroev, S.
AU - Jiang, Xiuguang
AU - Peng, J. L.
AU - Greene, R. L.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - We report detailed magnetic measurements in H parallel to the c-axis direction on a single crystal of Nd1.85Ce0.15Cu2O4-y. The magnetization data indicate that the entrance field is determined by surface barriers. At low temperatures, the penetration field Hp(T) can be fit with Hp=Hcexp(-T/T0); at temperature close to Tc, Hp(T) is linear in T. The date can be qualitatively understood by a model where two-dimensional point vortices are thermally nucleated near the surface in weakly coupled layered superconductors.
AB - We report detailed magnetic measurements in H parallel to the c-axis direction on a single crystal of Nd1.85Ce0.15Cu2O4-y. The magnetization data indicate that the entrance field is determined by surface barriers. At low temperatures, the penetration field Hp(T) can be fit with Hp=Hcexp(-T/T0); at temperature close to Tc, Hp(T) is linear in T. The date can be qualitatively understood by a model where two-dimensional point vortices are thermally nucleated near the surface in weakly coupled layered superconductors.
UR - http://www.scopus.com/inward/record.url?scp=0000833851&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000833851&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.49.12326
DO - 10.1103/PhysRevB.49.12326
M3 - Article
VL - 49
SP - 12326
EP - 12329
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 2469-9950
IS - 17
ER -