Abstract
We have performed scanning tunneling microscopy studies on the structural modulation of Bi2.12 - xPbxSr1.88CuOy (Pbx-Bi2201, x = 0.18, 0.27, 0.32, 0.37) single crystals. The observed STM images show the clear atomic arrangement with the four-fold symmetry on the Bi(Pb)-O layer. The wavelength λ of incommensurate structural modulations along the b-axis increases with Pb content (i.e., λ ∼ 43 Å for x = 0.18) and the modulations completely disappear for x ∼ 0.37. In the intermediate content (x ∼ 0.27, 0.32), we find two-phase microstructures which consist of the modulated region with λ ∼ 46 Å and the modulation-free region.
| Original language | English |
|---|---|
| Pages (from-to) | 156-157 |
| Number of pages | 2 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 460-462 I |
| Issue number | SPEC. ISS. |
| DOIs | |
| Publication status | Published - Sep 1 2007 |
| Externally published | Yes |
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Keywords
- Pb-doped Bi2201
- Phase separation
- Scanning tunneling microscopy
- Structural modulation
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
STM studies on structural modulation and two-phase microstructures in Pb-doped Bi2201 single crystals. / Nishizaki, Terukazu; Kudo, Kazutaka; Okumura, Naoyuki; Kobayashi, Norio.
In: Physica C: Superconductivity and its Applications, Vol. 460-462 I, No. SPEC. ISS., 01.09.2007, p. 156-157.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - STM studies on structural modulation and two-phase microstructures in Pb-doped Bi2201 single crystals
AU - Nishizaki, Terukazu
AU - Kudo, Kazutaka
AU - Okumura, Naoyuki
AU - Kobayashi, Norio
PY - 2007/9/1
Y1 - 2007/9/1
N2 - We have performed scanning tunneling microscopy studies on the structural modulation of Bi2.12 - xPbxSr1.88CuOy (Pbx-Bi2201, x = 0.18, 0.27, 0.32, 0.37) single crystals. The observed STM images show the clear atomic arrangement with the four-fold symmetry on the Bi(Pb)-O layer. The wavelength λ of incommensurate structural modulations along the b-axis increases with Pb content (i.e., λ ∼ 43 Å for x = 0.18) and the modulations completely disappear for x ∼ 0.37. In the intermediate content (x ∼ 0.27, 0.32), we find two-phase microstructures which consist of the modulated region with λ ∼ 46 Å and the modulation-free region.
AB - We have performed scanning tunneling microscopy studies on the structural modulation of Bi2.12 - xPbxSr1.88CuOy (Pbx-Bi2201, x = 0.18, 0.27, 0.32, 0.37) single crystals. The observed STM images show the clear atomic arrangement with the four-fold symmetry on the Bi(Pb)-O layer. The wavelength λ of incommensurate structural modulations along the b-axis increases with Pb content (i.e., λ ∼ 43 Å for x = 0.18) and the modulations completely disappear for x ∼ 0.37. In the intermediate content (x ∼ 0.27, 0.32), we find two-phase microstructures which consist of the modulated region with λ ∼ 46 Å and the modulation-free region.
KW - Pb-doped Bi2201
KW - Phase separation
KW - Scanning tunneling microscopy
KW - Structural modulation
UR - http://www.scopus.com/inward/record.url?scp=34548213685&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34548213685&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2007.04.036
DO - 10.1016/j.physc.2007.04.036
M3 - Article
AN - SCOPUS:34548213685
VL - 460-462 I
SP - 156
EP - 157
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SPEC. ISS.
ER -