Abstract
Magnetic measurements in a wide temperature range of several ternary LREBa2Cu3Oy samples differently doped by secondary phase nanoparticles of different sizes are analysed in terms of a thermally activated depinning process. Evolution of the involved parameters with temperature and particle size is discussed. Zr contamination of the secondary phase particles facilitates the particles size reduction during meltgrowth process up to nanometre scale. Critical current at low fields, facilitated by multiple vortex pinning, is inversely proportional to (a small power of) the mean particle size. With such defects both critical currents and irreversibility field are high enough for industrial applications up to 90.2K (boiling point of liquid oxygen).
| Original language | English |
|---|---|
| Article number | 102 |
| Pages (from-to) | 409-412 |
| Number of pages | 4 |
| Journal | Journal of Physics: Conference Series |
| Volume | 43 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2006 Jun 1 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Vortex pinning by nanoparticles in melt-textured LREBa2Cu 3Oy. / Jirsa, M.; Miryala, Muralidhar; Murakami, Masato.
In: Journal of Physics: Conference Series, Vol. 43, No. 1, 102, 01.06.2006, p. 409-412.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Vortex pinning by nanoparticles in melt-textured LREBa2Cu 3Oy
AU - Jirsa, M.
AU - Miryala, Muralidhar
AU - Murakami, Masato
PY - 2006/6/1
Y1 - 2006/6/1
N2 - Magnetic measurements in a wide temperature range of several ternary LREBa2Cu3Oy samples differently doped by secondary phase nanoparticles of different sizes are analysed in terms of a thermally activated depinning process. Evolution of the involved parameters with temperature and particle size is discussed. Zr contamination of the secondary phase particles facilitates the particles size reduction during meltgrowth process up to nanometre scale. Critical current at low fields, facilitated by multiple vortex pinning, is inversely proportional to (a small power of) the mean particle size. With such defects both critical currents and irreversibility field are high enough for industrial applications up to 90.2K (boiling point of liquid oxygen).
AB - Magnetic measurements in a wide temperature range of several ternary LREBa2Cu3Oy samples differently doped by secondary phase nanoparticles of different sizes are analysed in terms of a thermally activated depinning process. Evolution of the involved parameters with temperature and particle size is discussed. Zr contamination of the secondary phase particles facilitates the particles size reduction during meltgrowth process up to nanometre scale. Critical current at low fields, facilitated by multiple vortex pinning, is inversely proportional to (a small power of) the mean particle size. With such defects both critical currents and irreversibility field are high enough for industrial applications up to 90.2K (boiling point of liquid oxygen).
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U2 - 10.1088/1742-6596/43/1/102
DO - 10.1088/1742-6596/43/1/102
M3 - Article
VL - 43
SP - 409
EP - 412
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 102
ER -