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

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

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@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 - http://www.scopus.com/inward/record.url?scp=0032396821&partnerID=8YFLogxK

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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