Anisotropy induced crossover from fractal to non-fractal flux penetration in high-T

Anisotropy induced crossover from fractal to non-fractal flux penetration in high-T_c thin films

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NETL

外文摘要：We present a magneto-optical study on (i) the origin of the fractal behavior and (ii) means to decrease the irregularity of the magnetic flux front in high-T_c thin films。 In particular， we will refer to the crossover from fractal to non-fractal flux penetration induced by anisotropy in the critical current density。 We study Tl_2Ba_2CuO_(6+x) thin films sputtered on vicinal SrTiO_3 substrates with vicinal angles of 0 deg ， 0。5 deg ， 2。5 deg ， and 4 deg 。 The films were patterned in shapes of disks， squares and tilted squares。

作者：

R.Surdeanu、R.J.Wijngaarden、B.Dam、J.H.Rector、R.Griessen、C.Rossel、Z.F.Ren、J.H.Wang

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会议名称：

NATO advanced study institute on physics and materials science of vortex states, flux pinning and dynamics

会议地点：

Kusadasi(TR)

会议母体文献：

Physics and materials science of vortex states, flux pinning and dynamics

页码：

p.291-306

出版时间：

1998