PMID- 11526303
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20011025
LR  - 20190605
IS  - 0108-7673 (Print)
IS  - 0108-7673 (Linking)
VI  - 57
IP  - Pt 5
DP  - 2001 Sep
TI  - Electron crystallographic image-processing investigation and superstructure 
      determination for (Pb0.5Sr0.3Cu0.2)Sr2(Ca0.6Sr0.4)Cu2Oy.
PG  - 540-7
AB  - An electron crystallographic image-processing technique based on the combination 
      of high-resolution electron microscopy and electron diffraction has been 
      developed to investigate the commensurate structural modulation in the high-Tc 
      superconductor (Pb0.5Sr0.3Cu0.2)Sr2(Ca0.6Sr0.4)Cu2Oy. After symmetry averaging, a 
      structure image was obtained by image deconvolution at the resolution limited by 
      that of the electron microscope. Then phase extension was employed to enhance the 
      image resolution up to about 1.25 A by means of the electron diffraction data 
      corrected with an empirical method. In the final projected potential map, the 
      occupational and/or positional modulation is clearly observed for all atoms, 
      including oxygen. The key points of determining superstructures by the technique 
      are studied and discussed.
FAU - Liu, J
AU  - Liu J
AD  - Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of 
      Sciences, PO Box 603, Beijing 100080, People's Republic of China.
FAU - Li, F H
AU  - Li FH
FAU - Wan, Z H
AU  - Wan ZH
FAU - Fan, H F
AU  - Fan HF
FAU - Wu, X J
AU  - Wu XJ
FAU - Tamura, T
AU  - Tamura T
FAU - Tanabe, K
AU  - Tanabe K
LA  - eng
PT  - Journal Article
DEP - 20010901
PL  - United States
TA  - Acta Crystallogr A
JT  - Acta crystallographica. Section A, Foundations of crystallography
JID - 8305825
EDAT- 2001/08/30 10:00
MHDA- 2001/08/30 10:01
CRDT- 2001/08/30 10:00
PHST- 2001/01/30 00:00 [received]
PHST- 2001/05/09 00:00 [accepted]
PHST- 2001/08/30 10:00 [pubmed]
PHST- 2001/08/30 10:01 [medline]
PHST- 2001/08/30 10:00 [entrez]
AID - S0108767301007632 [pii]
AID - 10.1107/s0108767301007632 [doi]
PST - ppublish
SO  - Acta Crystallogr A. 2001 Sep;57(Pt 5):540-7. doi: 10.1107/s0108767301007632. Epub 
      2001 Sep 1.