| 43192 |
Creator |
c3baa1aae2495d9fcf383c433b46bfe0 |
| 43192 |
Creator |
ext-0af6f2165bb9f1f30f4bfb7fb1c3075a |
| 43192 |
Creator |
ext-190776a7f1b8920791cec9b0994f3570 |
| 43192 |
Creator |
ext-57fdac6814be3feb21d9d8e51e318f45 |
| 43192 |
Creator |
ext-78a16b9ed72f9997c5995853915b4062 |
| 43192 |
Creator |
ext-98b11e129210d1f80c939a6a69889a35 |
| 43192 |
Creator |
ext-dc931bb82f51da13a056e074342cd42e |
| 43192 |
Date |
2010-12 |
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Is Part Of |
repository |
| 43192 |
Is Part Of |
p09214534 |
| 43192 |
abstract |
We report columnar growth of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub> (YBCO) films
by pulsed laser deposition using nanodots of Au, Ag and Pd deposited on SrTiO<sub>3</sub>
substrate prior to the growth of the film. The nanodots initiate formation of densely
packed YBCO columns with <i>c</i>-axis along the length of the columns. The obtained
columnar structure offers enhanced pinning of magnetic flux and provides high critical
current density in a magnetic field directed along the <i>c</i>-axis of YBCO while
keeping high critical current density for other directions of magnetic field. The
evidence of columnar structure is given by the planar and cross-sectional atomic force
microscopy, transmissional election microscopy and rotational transport measurements
of critical current. By creating the columnar structure, an improvement of critical
current up to about 200% is achieved comparable to the reference samples without nanodots
in a wide range of magnetic field and thickness of the samples. The largest increase
in critical current is observed in magnetic fields close to the matching field calculated
from the density of nanoparticles or density of YBCO columns. |
| 43192 |
authorList |
authors |
| 43192 |
issue |
Sup.1 |
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status |
peerReviewed |
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volume |
470 |
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type |
AcademicArticle |
| 43192 |
type |
Article |
| 43192 |
label |
Mikheenko, P.; Tanner, J. L.; Bowen, J. ; Sarkar, A.; Dang, V.-S.; Abell, J. S.
and Crisan, A. (2010). Nanodots induced columnar growth of YBa2Cu3Ox films. Physica
C: Superconductivity, 470(Sup.1) S234-S236. |
| 43192 |
label |
Mikheenko, P.; Tanner, J. L.; Bowen, J. ; Sarkar, A.; Dang, V.-S.; Abell, J. S. and
Crisan, A. (2010). Nanodots induced columnar growth of YBa2Cu3Ox films. Physica
C: Superconductivity, 470(Sup.1) S234-S236. |
| 43192 |
Title |
Nanodots induced columnar growth of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub> films |
| 43192 |
in dataset |
oro |