抄録
We report on the study of the electronic anisotropy of the MgB2 superconductor using the in-plane resistivity measurements in the magnetic field applied perpendicular and parallel to Mg and B planes of MgB2 single crystals. The results show the temperature dependent anisotropy of the upper critical field with the anisotropy ratio γ = Hc2∥/Hc2⊥ increasing from 2.2 close to Tc up to about 3 below 30 K. Our estimation of the in-plane and out-of-plane coherence length of about ξab(0) = 68 Å and ξc(0) = 23 Å and the electronic mean-free path lab = 240 ̊, and lc = 60 ̊, respectively, indicates MgB2 single crystal approaches the clean limit type-II superconductor.
| 元の言語 | English |
|---|---|
| 記事番号 | 140501 |
| ページ（範囲） | 1405011-1405014 |
| ページ数 | 4 |
| ジャーナル | Physical Review B - Condensed Matter and Materials Physics |
| 巻 | 65 |
| 発行部数 | 14 |
| 出版物ステータス | Published - 2002 4 1 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Anisotropic superconducting properties of MgB2 single crystals probed by in-plane electrical transport measurements. / Eltsev, Yu; Lee, S.; Nakao, K.; Chikumoto, N.; Tajima, S.; Koshizuka, N.; Murakami, Masato.
：: Physical Review B - Condensed Matter and Materials Physics, 巻 65, 番号 14, 140501, 01.04.2002, p. 1405011-1405014.研究成果: Article
}
TY - JOUR
T1 - Anisotropic superconducting properties of MgB2 single crystals probed by in-plane electrical transport measurements
AU - Eltsev, Yu
AU - Lee, S.
AU - Nakao, K.
AU - Chikumoto, N.
AU - Tajima, S.
AU - Koshizuka, N.
AU - Murakami, Masato
PY - 2002/4/1
Y1 - 2002/4/1
N2 - We report on the study of the electronic anisotropy of the MgB2 superconductor using the in-plane resistivity measurements in the magnetic field applied perpendicular and parallel to Mg and B planes of MgB2 single crystals. The results show the temperature dependent anisotropy of the upper critical field with the anisotropy ratio γ = Hc2∥/Hc2⊥ increasing from 2.2 close to Tc up to about 3 below 30 K. Our estimation of the in-plane and out-of-plane coherence length of about ξab(0) = 68 Å and ξc(0) = 23 Å and the electronic mean-free path lab = 240 ̊, and lc = 60 ̊, respectively, indicates MgB2 single crystal approaches the clean limit type-II superconductor.
AB - We report on the study of the electronic anisotropy of the MgB2 superconductor using the in-plane resistivity measurements in the magnetic field applied perpendicular and parallel to Mg and B planes of MgB2 single crystals. The results show the temperature dependent anisotropy of the upper critical field with the anisotropy ratio γ = Hc2∥/Hc2⊥ increasing from 2.2 close to Tc up to about 3 below 30 K. Our estimation of the in-plane and out-of-plane coherence length of about ξab(0) = 68 Å and ξc(0) = 23 Å and the electronic mean-free path lab = 240 ̊, and lc = 60 ̊, respectively, indicates MgB2 single crystal approaches the clean limit type-II superconductor.
UR - http://www.scopus.com/inward/record.url?scp=0000774368&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000774368&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0000774368
VL - 65
SP - 1405011
EP - 1405014
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 14
M1 - 140501
ER -