Magnetic properties in YBa 2Cu 3O 7 single crystals with a crossed configuration of columnar defects

S. Y. Shim; D. H. Kim; J. S. Hwang; T. J. Hwang; H. R. Lim; S. J. Oh; H. C. Ri; J. H. Park; T. S. Hahn; Jin Tae Kim

Magnetic properties in YBa ₂Cu ₃O ₇ single crystals with a crossed configuration of columnar defects

S. Y. Shim
, D. H. Kim
, J. S. Hwang
, T. J. Hwang
, H. R. Lim
, S. J. Oh
, H. C. Ri
, J. H. Park
, T. S. Hahn
, Jin Tae Kim

Department of Physics

Yeungnam University
Korea Basic Science Institute
Korea Institute of Science and Technology
Korea Research Institute of Standards and Science

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

4 Scopus citations

Abstract

We have studied the magnetic properties of YBa ₂Cu ₃O ₇ single crystals with crossed columnar defects of various splay angles (0° ∼ ±40°). In the temperature range between 50 and 70 K, crystals with ±20° show the highest enhancement in J _c near the matching field of the defect density. We also find that the normalized creep rates and the vortex, activation energies change with the splay angle. The relaxation rate for a ±20° crystal shows the lowest value for magnetic fields near the matching field, consistent with the J _c results. Possible vortex dynamics associated with the crossed columnar defects are discussed.

Original language	English
Pages (from-to)	81-85
Number of pages	5
Journal	Journal of the Korean Physical Society
Volume	33
Issue number	1
State	Published - 1998

Cite this

@article{3be810755dba4d8a92501e94b61245fe,

title = "Magnetic properties in YBa 2Cu 3O 7 single crystals with a crossed configuration of columnar defects",

abstract = "We have studied the magnetic properties of YBa 2Cu 3O 7 single crystals with crossed columnar defects of various splay angles (0° ∼ ±40°). In the temperature range between 50 and 70 K, crystals with ±20° show the highest enhancement in J c near the matching field of the defect density. We also find that the normalized creep rates and the vortex, activation energies change with the splay angle. The relaxation rate for a ±20° crystal shows the lowest value for magnetic fields near the matching field, consistent with the J c results. Possible vortex dynamics associated with the crossed columnar defects are discussed.",

author = "Shim, \{S. Y.\} and Kim, \{D. H.\} and Hwang, \{J. S.\} and Hwang, \{T. J.\} and Lim, \{H. R.\} and Oh, \{S. J.\} and Ri, \{H. C.\} and Park, \{J. H.\} and Hahn, \{T. S.\} and Kim, \{Jin Tae\}",

year = "1998",

language = "English",

volume = "33",

pages = "81--85",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "1",

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TY - JOUR

T1 - Magnetic properties in YBa 2Cu 3O 7 single crystals with a crossed configuration of columnar defects

AU - Shim, S. Y.

AU - Kim, D. H.

AU - Hwang, J. S.

AU - Hwang, T. J.

AU - Lim, H. R.

AU - Oh, S. J.

AU - Ri, H. C.

AU - Park, J. H.

AU - Hahn, T. S.

AU - Kim, Jin Tae

PY - 1998

Y1 - 1998

N2 - We have studied the magnetic properties of YBa 2Cu 3O 7 single crystals with crossed columnar defects of various splay angles (0° ∼ ±40°). In the temperature range between 50 and 70 K, crystals with ±20° show the highest enhancement in J c near the matching field of the defect density. We also find that the normalized creep rates and the vortex, activation energies change with the splay angle. The relaxation rate for a ±20° crystal shows the lowest value for magnetic fields near the matching field, consistent with the J c results. Possible vortex dynamics associated with the crossed columnar defects are discussed.

AB - We have studied the magnetic properties of YBa 2Cu 3O 7 single crystals with crossed columnar defects of various splay angles (0° ∼ ±40°). In the temperature range between 50 and 70 K, crystals with ±20° show the highest enhancement in J c near the matching field of the defect density. We also find that the normalized creep rates and the vortex, activation energies change with the splay angle. The relaxation rate for a ±20° crystal shows the lowest value for magnetic fields near the matching field, consistent with the J c results. Possible vortex dynamics associated with the crossed columnar defects are discussed.

UR - https://www.scopus.com/pages/publications/0032396821

M3 - Article

AN - SCOPUS:0032396821

SN - 0374-4884

VL - 33

SP - 81

EP - 85

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 1

ER -

Magnetic properties in YBa ₂Cu ₃O ₇ single crystals with a crossed configuration of columnar defects

Abstract

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