Abstract
The ab-plane reflectivity of untwinned YBa2(Cu1-xZnx)3O7-δ single crystals is measured between 250 and 20 000 cm-1 at room temperature. Through Zn substitution, the optical conductivity along Eb shows a broad peak at about 2000 cm-1, suggesting localization of the chain band carrier. The conductivity along Ea shows no mid-infrared absorption and slightly decreases from the far- to mid-infrared region through Zn substitution. Analysis of the conductivity along Ea shows that the main effect of Zn substitution is to increase the impurity scattering rate. A small amount of carrier reduction and suppression of effective mass enhancement at low frequency are also observed. The suppression of the effective mass enhancement is discussed by the antiferromagnetic spin-fluctuation theory of Fermi liquid.
| Original language | English |
|---|---|
| Pages (from-to) | 9294-9297 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 51 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 1995 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Infrared reflectivity of untwinned YBa2(Cu1-xZnx)3O7-δ single crystals. / Shibata, H.; Semba, K.; Matsuda, Azusa; Yamada, T.
In: Physical Review B, Vol. 51, No. 14, 1995, p. 9294-9297.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Infrared reflectivity of untwinned YBa2(Cu1-xZnx)3O7-δ single crystals
AU - Shibata, H.
AU - Semba, K.
AU - Matsuda, Azusa
AU - Yamada, T.
PY - 1995
Y1 - 1995
N2 - The ab-plane reflectivity of untwinned YBa2(Cu1-xZnx)3O7-δ single crystals is measured between 250 and 20 000 cm-1 at room temperature. Through Zn substitution, the optical conductivity along Eb shows a broad peak at about 2000 cm-1, suggesting localization of the chain band carrier. The conductivity along Ea shows no mid-infrared absorption and slightly decreases from the far- to mid-infrared region through Zn substitution. Analysis of the conductivity along Ea shows that the main effect of Zn substitution is to increase the impurity scattering rate. A small amount of carrier reduction and suppression of effective mass enhancement at low frequency are also observed. The suppression of the effective mass enhancement is discussed by the antiferromagnetic spin-fluctuation theory of Fermi liquid.
AB - The ab-plane reflectivity of untwinned YBa2(Cu1-xZnx)3O7-δ single crystals is measured between 250 and 20 000 cm-1 at room temperature. Through Zn substitution, the optical conductivity along Eb shows a broad peak at about 2000 cm-1, suggesting localization of the chain band carrier. The conductivity along Ea shows no mid-infrared absorption and slightly decreases from the far- to mid-infrared region through Zn substitution. Analysis of the conductivity along Ea shows that the main effect of Zn substitution is to increase the impurity scattering rate. A small amount of carrier reduction and suppression of effective mass enhancement at low frequency are also observed. The suppression of the effective mass enhancement is discussed by the antiferromagnetic spin-fluctuation theory of Fermi liquid.
UR - http://www.scopus.com/inward/record.url?scp=0001123612&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001123612&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.51.9294
DO - 10.1103/PhysRevB.51.9294
M3 - Article
AN - SCOPUS:0001123612
VL - 51
SP - 9294
EP - 9297
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 14
ER -