Enhanced vortex-pinning strength and magnetic-irreversibility via columnar defects in single crystal Bi2Sr2CaCu2O8

H. R. Kerchner; J. R. Thompson; Y. R. Sun; D. K. Christen; J. O. Thomson; B. C. Sales; B. Chakoumakos; L. Civale; A. D. Marwick

doi:10.1016/0921-4526(94)91451-6

Enhanced vortex-pinning strength and magnetic-irreversibility via columnar defects in single crystal Bi₂Sr₂CaCu₂O₈

H. R. Kerchner
, J. R. Thompson
, Y. R. Sun
, D. K. Christen
, J. O. Thomson
, B. C. Sales
, B. Chakoumakos
, L. Civale
, A. D. Marwick

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

To enhance vortex pinning in the high-T_c superconductor Bi₂Sr₂CaCu₂O₈, single crystals were irradiated with energetic heavy ions to create columnar defects. Irradiations were made at various angles from the c-axis. The pinning energy U₀ was investigated by ac magnetometry near B(T_irr), the limit of quasistatic magnetic irreversibility. Irradiation increased U₀ by a factor of ∼3, relatively independent of the ion-beam exposure, which increased both J_c and the irreversible BT regime. Independence of J_c and U₀ from the magnetic-field orientation suggests the predominance of strong pins interacting with 2-D pancake vortices.

Original language	English
Pages (from-to)	1903-1904
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	194-196
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4526(94)91451-6
State	Published - Feb 2 1994
Externally published	Yes

Access to Document

10.1016/0921-4526(94)91451-6

Cite this

Kerchner, H. R., Thompson, J. R., Sun, Y. R., Christen, D. K., Thomson, J. O., Sales, B. C., Chakoumakos, B., Civale, L., & Marwick, A. D. (1994). Enhanced vortex-pinning strength and magnetic-irreversibility via columnar defects in single crystal Bi₂Sr₂CaCu₂O₈. Physica B: Physics of Condensed Matter, 194-196(PART 2), 1903-1904. https://doi.org/10.1016/0921-4526(94)91451-6

@article{a7b811d0e87d4b07912e1d9f40da8970,

title = "Enhanced vortex-pinning strength and magnetic-irreversibility via columnar defects in single crystal Bi2Sr2CaCu2O8",

abstract = "To enhance vortex pinning in the high-Tc superconductor Bi2Sr2CaCu2O8, single crystals were irradiated with energetic heavy ions to create columnar defects. Irradiations were made at various angles from the c-axis. The pinning energy U0 was investigated by ac magnetometry near B(Tirr), the limit of quasistatic magnetic irreversibility. Irradiation increased U0 by a factor of ∼3, relatively independent of the ion-beam exposure, which increased both Jc and the irreversible BT regime. Independence of Jc and U0 from the magnetic-field orientation suggests the predominance of strong pins interacting with 2-D pancake vortices.",

author = "Kerchner, \{H. R.\} and Thompson, \{J. R.\} and Sun, \{Y. R.\} and Christen, \{D. K.\} and Thomson, \{J. O.\} and Sales, \{B. C.\} and B. Chakoumakos and L. Civale and Marwick, \{A. D.\}",

year = "1994",

month = feb,

day = "2",

doi = "10.1016/0921-4526(94)91451-6",

language = "English",

volume = "194-196",

pages = "1903--1904",

journal = "Physica B: Physics of Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "PART 2",

}

TY - JOUR

T1 - Enhanced vortex-pinning strength and magnetic-irreversibility via columnar defects in single crystal Bi2Sr2CaCu2O8

AU - Kerchner, H. R.

AU - Thompson, J. R.

AU - Sun, Y. R.

AU - Christen, D. K.

AU - Thomson, J. O.

AU - Sales, B. C.

AU - Chakoumakos, B.

AU - Civale, L.

AU - Marwick, A. D.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - To enhance vortex pinning in the high-Tc superconductor Bi2Sr2CaCu2O8, single crystals were irradiated with energetic heavy ions to create columnar defects. Irradiations were made at various angles from the c-axis. The pinning energy U0 was investigated by ac magnetometry near B(Tirr), the limit of quasistatic magnetic irreversibility. Irradiation increased U0 by a factor of ∼3, relatively independent of the ion-beam exposure, which increased both Jc and the irreversible BT regime. Independence of Jc and U0 from the magnetic-field orientation suggests the predominance of strong pins interacting with 2-D pancake vortices.

AB - To enhance vortex pinning in the high-Tc superconductor Bi2Sr2CaCu2O8, single crystals were irradiated with energetic heavy ions to create columnar defects. Irradiations were made at various angles from the c-axis. The pinning energy U0 was investigated by ac magnetometry near B(Tirr), the limit of quasistatic magnetic irreversibility. Irradiation increased U0 by a factor of ∼3, relatively independent of the ion-beam exposure, which increased both Jc and the irreversible BT regime. Independence of Jc and U0 from the magnetic-field orientation suggests the predominance of strong pins interacting with 2-D pancake vortices.

UR - https://www.scopus.com/pages/publications/4243333780

U2 - 10.1016/0921-4526(94)91451-6

DO - 10.1016/0921-4526(94)91451-6

M3 - Article

AN - SCOPUS:4243333780

SN - 0921-4526

VL - 194-196

SP - 1903

EP - 1904

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - PART 2

ER -

Enhanced vortex-pinning strength and magnetic-irreversibility via columnar defects in single crystal Bi₂Sr₂CaCu₂O₈

Abstract

Access to Document

Other files and links

Fingerprint

Cite this