抄録
Conventional and dynamic relaxation processes and scaling properties of the magnetic hysteresis loops (MHL) were studied on a Pb-ion irradiated DyBa2Cu3O7-δ single crystal by means of the torque magnetometry. The columnar pinning structure produced by irradiation enhanced considerably the induced critical current density and caused the high-field part of the MHL to be field-independent up to B ≥ 7 T. The substantial change of the pinning structure shifted the appearance of the fishtail effect to higher temperatures and fields. The relaxation experiments confirm a correlation between the relaxation rate and the MHL shape and point to quite different relaxation regimes at high and low fields. Correspondingly, the scaling of the MHLs in both field ranges is different. This behaviour is modelled by two separable contributions to the MHL, one being active mainly at high fields and the other at low fields (central peak). Possible origins of these two contributions are discussed.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 484-491 |
| ページ数 | 8 |
| ジャーナル | Superconductor Science and Technology |
| 巻 | 10 |
| 発行部数 | 7 |
| DOI | |
| 出版物ステータス | Published - 1997 7 1 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Ceramics and Composites
- Condensed Matter Physics
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry
これを引用
Relaxation and scaling of magnetization around the fishtail minimum in DyBa2Cu3O7 single crystal with columnar tracks. / Jirsa, M.; Koblischka, Michael Rudolf; Van Dalen, A. J.J.
：: Superconductor Science and Technology, 巻 10, 番号 7, 01.07.1997, p. 484-491.研究成果: Article
}
TY - JOUR
T1 - Relaxation and scaling of magnetization around the fishtail minimum in DyBa2Cu3O7 single crystal with columnar tracks
AU - Jirsa, M.
AU - Koblischka, Michael Rudolf
AU - Van Dalen, A. J.J.
PY - 1997/7/1
Y1 - 1997/7/1
N2 - Conventional and dynamic relaxation processes and scaling properties of the magnetic hysteresis loops (MHL) were studied on a Pb-ion irradiated DyBa2Cu3O7-δ single crystal by means of the torque magnetometry. The columnar pinning structure produced by irradiation enhanced considerably the induced critical current density and caused the high-field part of the MHL to be field-independent up to B ≥ 7 T. The substantial change of the pinning structure shifted the appearance of the fishtail effect to higher temperatures and fields. The relaxation experiments confirm a correlation between the relaxation rate and the MHL shape and point to quite different relaxation regimes at high and low fields. Correspondingly, the scaling of the MHLs in both field ranges is different. This behaviour is modelled by two separable contributions to the MHL, one being active mainly at high fields and the other at low fields (central peak). Possible origins of these two contributions are discussed.
AB - Conventional and dynamic relaxation processes and scaling properties of the magnetic hysteresis loops (MHL) were studied on a Pb-ion irradiated DyBa2Cu3O7-δ single crystal by means of the torque magnetometry. The columnar pinning structure produced by irradiation enhanced considerably the induced critical current density and caused the high-field part of the MHL to be field-independent up to B ≥ 7 T. The substantial change of the pinning structure shifted the appearance of the fishtail effect to higher temperatures and fields. The relaxation experiments confirm a correlation between the relaxation rate and the MHL shape and point to quite different relaxation regimes at high and low fields. Correspondingly, the scaling of the MHLs in both field ranges is different. This behaviour is modelled by two separable contributions to the MHL, one being active mainly at high fields and the other at low fields (central peak). Possible origins of these two contributions are discussed.
UR - http://www.scopus.com/inward/record.url?scp=0031193225&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031193225&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/10/7/004
DO - 10.1088/0953-2048/10/7/004
M3 - Article
AN - SCOPUS:0031193225
VL - 10
SP - 484
EP - 491
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 7
ER -