Abstract
We report the electrical resistivity, the Hall coefficient, RH, and the Magnetoresistance, MR, at pressures up to 2.0 GPa, of the spin-ladder compound Sr14-xCaxCu24O41+δ, on both a polycrystal (x = 13.6) and single crystals (x = 11 and 12), in which superconductivity has been observed only in a range of both Ca content (∼ 11 <x <14) and pressure (∼ 1.5 <P H, with positive sign, indicates that carrier density increases with increasing pressure and localization of hole carriers at low temperature is substantially suppressed by applying pressure. We have also found that a positive MR, which violates Kohler's rule, seems to appear below the temperature at which a spin gap begins to open and strongly depends on the temperature as well as both on Ca content and applied pressure, suggesting that this MR is closely related to the mobile holes in the spin singlet state.
| Original language | English |
|---|---|
| Pages (from-to) | 2408-2414 |
| Number of pages | 7 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 67 |
| Issue number | 7 |
| Publication status | Published - Jul 1998 |
| Externally published | Yes |
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Keywords
- Hall effect
- High pressure effect
- Magnetoresistance
- Spin-ladder system
- SrCaCuO
- Superconductivity
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
High-Pressure Transport Properties of the Superconducting Spin-Ladder System Sr14-xCaxCu24O41+δ . / Nakanishi, Takeshi; Môri, Nobuo; Murayama, Chizuko; Takahashi, Hiroki; Nagata, Takashi; Uehara, Masatomo; Akimitsu, Jun; Kinoshita, Kyôichi; Motoyama, Naoki; Eisaki, Hiroshi; Uchida, Shin Ichi.
In: Journal of the Physical Society of Japan, Vol. 67, No. 7, 07.1998, p. 2408-2414.Research output: Contribution to journal › Article
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TY - JOUR
T1 - High-Pressure Transport Properties of the Superconducting Spin-Ladder System Sr14-xCaxCu24O41+δ
AU - Nakanishi, Takeshi
AU - Môri, Nobuo
AU - Murayama, Chizuko
AU - Takahashi, Hiroki
AU - Nagata, Takashi
AU - Uehara, Masatomo
AU - Akimitsu, Jun
AU - Kinoshita, Kyôichi
AU - Motoyama, Naoki
AU - Eisaki, Hiroshi
AU - Uchida, Shin Ichi
PY - 1998/7
Y1 - 1998/7
N2 - We report the electrical resistivity, the Hall coefficient, RH, and the Magnetoresistance, MR, at pressures up to 2.0 GPa, of the spin-ladder compound Sr14-xCaxCu24O41+δ, on both a polycrystal (x = 13.6) and single crystals (x = 11 and 12), in which superconductivity has been observed only in a range of both Ca content (∼ 11
AB - We report the electrical resistivity, the Hall coefficient, RH, and the Magnetoresistance, MR, at pressures up to 2.0 GPa, of the spin-ladder compound Sr14-xCaxCu24O41+δ, on both a polycrystal (x = 13.6) and single crystals (x = 11 and 12), in which superconductivity has been observed only in a range of both Ca content (∼ 11
KW - Hall effect
KW - High pressure effect
KW - Magnetoresistance
KW - Spin-ladder system
KW - SrCaCuO
KW - Superconductivity
UR - http://www.scopus.com/inward/record.url?scp=0039772204&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0039772204&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0039772204
VL - 67
SP - 2408
EP - 2414
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 7
ER -