抄録
AC susceptibility and DC magnetization relaxation measurements have been performed for YBa2Cu3O7 films containing BaZrO3 nanorods preferentially oriented along the c axis, with the external magnetic field perpendicular to the film surface. It was found that the effective vortex activation energy Ue supplied by the standard analysis of the frequency dependent AC magnetic response remains very high even in the vicinity of the irreversibility line indicated by the DC relaxation. We show that the large Ue values appearing in the AC signal are related to the pinning enhanced viscous drag and significant vortex velocities.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 361-365 |
| ページ数 | 5 |
| ジャーナル | Journal of Superconductivity and Novel Magnetism |
| 巻 | 28 |
| 発行部数 | 2 |
| DOI | |
| 出版物ステータス | Published - 2014 1 1 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
これを引用
DC Magnetization Relaxation and the AC Susceptibility of YBCO Films with Strong Pinning. / Miu, L.; Mele, Paolo; Ivan, I.; Ionescu, A. M.; Miu, D.
：: Journal of Superconductivity and Novel Magnetism, 巻 28, 番号 2, 01.01.2014, p. 361-365.研究成果: Article
}
TY - JOUR
T1 - DC Magnetization Relaxation and the AC Susceptibility of YBCO Films with Strong Pinning
AU - Miu, L.
AU - Mele, Paolo
AU - Ivan, I.
AU - Ionescu, A. M.
AU - Miu, D.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - AC susceptibility and DC magnetization relaxation measurements have been performed for YBa2Cu3O7 films containing BaZrO3 nanorods preferentially oriented along the c axis, with the external magnetic field perpendicular to the film surface. It was found that the effective vortex activation energy Ue supplied by the standard analysis of the frequency dependent AC magnetic response remains very high even in the vicinity of the irreversibility line indicated by the DC relaxation. We show that the large Ue values appearing in the AC signal are related to the pinning enhanced viscous drag and significant vortex velocities.
AB - AC susceptibility and DC magnetization relaxation measurements have been performed for YBa2Cu3O7 films containing BaZrO3 nanorods preferentially oriented along the c axis, with the external magnetic field perpendicular to the film surface. It was found that the effective vortex activation energy Ue supplied by the standard analysis of the frequency dependent AC magnetic response remains very high even in the vicinity of the irreversibility line indicated by the DC relaxation. We show that the large Ue values appearing in the AC signal are related to the pinning enhanced viscous drag and significant vortex velocities.
KW - AC measurements
KW - DC magnetization relaxation
KW - Flux creep
KW - Flux flow
KW - YBCO films with BZO nanorods
UR - http://www.scopus.com/inward/record.url?scp=85028166035&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028166035&partnerID=8YFLogxK
U2 - 10.1007/s10948-014-2652-7
DO - 10.1007/s10948-014-2652-7
M3 - Article
AN - SCOPUS:85028166035
VL - 28
SP - 361
EP - 365
JO - Journal of Superconductivity and Novel Magnetism
JF - Journal of Superconductivity and Novel Magnetism
SN - 1557-1939
IS - 2
ER -