Abstract
We have performed STM measurements of the modulation-free Pb-doped Bi2201. In the overdoped (Tc = 7 K) and the optimally doped (Tc = 22 K) samples, the distorted patch arrangement has been observed in low-bias STM images below 50 mV. With decreasing doping level, the size of patches becomes smaller and their arrangement more orderly. In the optimally doped sample, furthermore, the bright atomic-strings have been detected at low bias-voltages below 10 mV. The distorted patch arrangement may be regarded as the two-dimensional superstructure incompletely formed due to the absence of the structural modulation and/or the disturbance from doped holes. The atomic-string indicates the one-dimensional electronic correlation and may be the new type hidden order.
| Original language | English |
|---|---|
| Pages (from-to) | 40-43 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 463-465 |
| Issue number | SUPPL. |
| DOIs | |
| Publication status | Published - Oct 1 2007 |
| Externally published | Yes |
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Keywords
- Bi-based cuprates
- Hidden order
- Modulation-free
- Pb-doped Bi2201
- Scanning tunneling microscopy
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
STM studies on the hole doping dependence of the hidden order in Pb-doped Bi2201. / Kudo, Kazutaka; Nishizaki, T.; Okumura, N.; Kobayashi, N.
In: Physica C: Superconductivity and its Applications, Vol. 463-465, No. SUPPL., 01.10.2007, p. 40-43.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - STM studies on the hole doping dependence of the hidden order in Pb-doped Bi2201
AU - Kudo, Kazutaka
AU - Nishizaki, T.
AU - Okumura, N.
AU - Kobayashi, N.
PY - 2007/10/1
Y1 - 2007/10/1
N2 - We have performed STM measurements of the modulation-free Pb-doped Bi2201. In the overdoped (Tc = 7 K) and the optimally doped (Tc = 22 K) samples, the distorted patch arrangement has been observed in low-bias STM images below 50 mV. With decreasing doping level, the size of patches becomes smaller and their arrangement more orderly. In the optimally doped sample, furthermore, the bright atomic-strings have been detected at low bias-voltages below 10 mV. The distorted patch arrangement may be regarded as the two-dimensional superstructure incompletely formed due to the absence of the structural modulation and/or the disturbance from doped holes. The atomic-string indicates the one-dimensional electronic correlation and may be the new type hidden order.
AB - We have performed STM measurements of the modulation-free Pb-doped Bi2201. In the overdoped (Tc = 7 K) and the optimally doped (Tc = 22 K) samples, the distorted patch arrangement has been observed in low-bias STM images below 50 mV. With decreasing doping level, the size of patches becomes smaller and their arrangement more orderly. In the optimally doped sample, furthermore, the bright atomic-strings have been detected at low bias-voltages below 10 mV. The distorted patch arrangement may be regarded as the two-dimensional superstructure incompletely formed due to the absence of the structural modulation and/or the disturbance from doped holes. The atomic-string indicates the one-dimensional electronic correlation and may be the new type hidden order.
KW - Bi-based cuprates
KW - Hidden order
KW - Modulation-free
KW - Pb-doped Bi2201
KW - Scanning tunneling microscopy
UR - http://www.scopus.com/inward/record.url?scp=34548485602&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34548485602&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2007.04.226
DO - 10.1016/j.physc.2007.04.226
M3 - Article
AN - SCOPUS:34548485602
VL - 463-465
SP - 40
EP - 43
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SUPPL.
ER -