Abstract
In YBa2Cu4O8 (Y124), the c-axis resistivity ρc(T) shows a drastic change from metallic to insulating behavior above a crossover magnetic field Bcr (B ∥ a), namely a magnetic field induced dimensional crossover. A simple picture for quasi-1-dimensional (quasi-1D) band transport along the CuO chains, originally proposed by Gorkov and Lebed, was suggested as the mechanism for this novel phenomenon. To further test the proposed picture, similar measurements on Y124 crystals doped with Zn were performed. Zn-doping is found to alter significantly ρc(T) at low temperatures but has little effect on the magnetic field induced dimensional crossover. These results are in good agreement with the predictions of the quasi-1D chain model and appear to confirm the critical role of the CuO chains in metallizing the c-axis in Y124.
| Original language | English |
|---|---|
| Pages (from-to) | 21-24 |
| Number of pages | 4 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 69 |
| Issue number | 1 |
| Publication status | Published - Jan 2000 |
| Externally published | Yes |
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Keywords
- Magnetic field induced dimensional crossover
- Magnetoresistance
- YBaCuO
- Zn doping
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
The effect of Zn-doping on the magnetic field induced dimensional crossover in YBa2Cu4O8. / Waku, Kiminori; Hussey, Nigel E.; Sakai, Fumiko; Nohara, Minoru; Takagi, Hidenori; Nakagawa, Hiroyuki; Miura, Noboru; Adachi, Seiji.
In: Journal of the Physical Society of Japan, Vol. 69, No. 1, 01.2000, p. 21-24.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The effect of Zn-doping on the magnetic field induced dimensional crossover in YBa2Cu4O8
AU - Waku, Kiminori
AU - Hussey, Nigel E.
AU - Sakai, Fumiko
AU - Nohara, Minoru
AU - Takagi, Hidenori
AU - Nakagawa, Hiroyuki
AU - Miura, Noboru
AU - Adachi, Seiji
PY - 2000/1
Y1 - 2000/1
N2 - In YBa2Cu4O8 (Y124), the c-axis resistivity ρc(T) shows a drastic change from metallic to insulating behavior above a crossover magnetic field Bcr (B ∥ a), namely a magnetic field induced dimensional crossover. A simple picture for quasi-1-dimensional (quasi-1D) band transport along the CuO chains, originally proposed by Gorkov and Lebed, was suggested as the mechanism for this novel phenomenon. To further test the proposed picture, similar measurements on Y124 crystals doped with Zn were performed. Zn-doping is found to alter significantly ρc(T) at low temperatures but has little effect on the magnetic field induced dimensional crossover. These results are in good agreement with the predictions of the quasi-1D chain model and appear to confirm the critical role of the CuO chains in metallizing the c-axis in Y124.
AB - In YBa2Cu4O8 (Y124), the c-axis resistivity ρc(T) shows a drastic change from metallic to insulating behavior above a crossover magnetic field Bcr (B ∥ a), namely a magnetic field induced dimensional crossover. A simple picture for quasi-1-dimensional (quasi-1D) band transport along the CuO chains, originally proposed by Gorkov and Lebed, was suggested as the mechanism for this novel phenomenon. To further test the proposed picture, similar measurements on Y124 crystals doped with Zn were performed. Zn-doping is found to alter significantly ρc(T) at low temperatures but has little effect on the magnetic field induced dimensional crossover. These results are in good agreement with the predictions of the quasi-1D chain model and appear to confirm the critical role of the CuO chains in metallizing the c-axis in Y124.
KW - Magnetic field induced dimensional crossover
KW - Magnetoresistance
KW - YBaCuO
KW - Zn doping
UR - http://www.scopus.com/inward/record.url?scp=0034381684&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034381684&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0034381684
VL - 69
SP - 21
EP - 24
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 1
ER -