Anisotropic Critical Current Densities in Ba0.6K0.4Fe2As2 with Splayed Columnar Defects

被引：2

作者：

Wang, Jiachen ^{[1
]}

Takahashi, Ayumu ^{[1
]}

Pyon, Sunseng ^{[1
]}

Yoshida, Atsushi ^{[2
]}

Kambara, Tadashi ^{[2
]}

Sun, Yue ^{[3
]}

Kitano, Haruhisa ^{[3
]}

Tamegai, Tsuyoshi ^{[1
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[2] RIKEN, Nishina Ctr, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[3] Aoyama Gakuin Univ, Dept Phys & Math, Sagamihara, Kanagawa 2525258, Japan

来源：

33RD INTERNATIONAL SYMPOSIUM ON SUPERCONDUCTIVITY (ISS2020) | 2021年 / 1975卷

关键词：

MAGNETIZATION;

D O I：

10.1088/1742-6596/1975/1/012012

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Enhancement and non-monotonic field dependence of critical current density (J(c)), called anomalous peak effect, were observed in Ba1-xKxFe2As2 with splayed columnar defects. In principle, anisotropy of in-plane J(c) should be present in this superconductor since the introduced splayed columnar defects introduce anisotropy in the plane. This study reports in-plane anisotropy of J(c) observed in 2.6 GeV U irradiated Ba0.6K0.4Fe2As2 with splay angles of +/- 15 degrees and +/- 20 degrees. Results show that J(c) component parallel to the splay plane is larger than the perpendicular component, and the parallel component contribute to the anomalous peak effect at around B Phi/3 more.

引用

页数：5

共 13 条

[11] Field-driven transition in the Ba1-xKxFe2As2 superconductor with splayed columnar defects
Park, Akiyoshi
Pyon, Sunseng
Ohara, Kengo
Ito, Nozomu
Tamegai, Tsuyoshi
Kambara, Tadashi
Yoshida, Atsushi
Ichinose, Ataru
[J]. PHYSICAL REVIEW B, 2018, 97 (06)
[12] Effects of Asymmetric Splayed Columnar Defects on the Anomalous Peak Effect in Ba0.6K0.4Fe2As2
Takahashi, Ayumu
Pyon, Sunseng
Kambara, Tadashi
Yoshida, Atsushi
Tamegai, Tsuyoshi
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2020, 89 (09)
[13] Effects of particle irradiations on vortex states in iron-based superconductors
Tamegai, Tsuyoshi
Taen, Toshihiro
Yagyuda, Hidenori
Tsuchiya, Yuji
Mohan, Shyam
Taniguchi, Tomotaka
Nakajima, Yasuyuki
Okayasu, Satoru
Sasase, Masato
Kitamura, Hisashi
Murakami, Takeshi
Kambara, Tadashi
Kanai, Yasuyuki
[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2012, 25 (08)

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