Abstract
We have observed evidence of finite-range order in quenched crystals of nominal composition Ba2YCu3O6.7. X-ray scattering shows diffuse peaks with a reduced wave vector of (1/2,0,0) in the oxygen-deficient compound but not in fully oxidized Ba2YCu3O7. Although the crystals are twinned, we find that the diffuse satellites occur symmetrically around (h,0,0) peaks rather than (0,k,0) peaks indicating a doubling of the unit cell along the a axis (transverse to the Cu-O chains). The width of the diffuse peaks yields coherence lengths of 21, 16, and 9 AI for the a0, b0, and c0 directions, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 7920-7923 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 37 |
| Issue number | 13 |
| DOIs | |
| State | Published - 1 Jan 1988 |
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X-ray-scattering study of finite-range order in Ba2YCu3O6.7. / Fleming, R. M.; Schneemeyer, Lynn; Gallagher, P. K.; Batlogg, B.; Rupp, L. W.; Waszczak, J. V.
In: Physical Review B, Vol. 37, No. 13, 01.01.1988, p. 7920-7923.Research output: Contribution to journal › Article
TY - JOUR
T1 - X-ray-scattering study of finite-range order in Ba2YCu3O6.7
AU - Fleming, R. M.
AU - Schneemeyer, Lynn
AU - Gallagher, P. K.
AU - Batlogg, B.
AU - Rupp, L. W.
AU - Waszczak, J. V.
PY - 1988/1/1
Y1 - 1988/1/1
N2 - We have observed evidence of finite-range order in quenched crystals of nominal composition Ba2YCu3O6.7. X-ray scattering shows diffuse peaks with a reduced wave vector of (1/2,0,0) in the oxygen-deficient compound but not in fully oxidized Ba2YCu3O7. Although the crystals are twinned, we find that the diffuse satellites occur symmetrically around (h,0,0) peaks rather than (0,k,0) peaks indicating a doubling of the unit cell along the a axis (transverse to the Cu-O chains). The width of the diffuse peaks yields coherence lengths of 21, 16, and 9 AI for the a0, b0, and c0 directions, respectively.
AB - We have observed evidence of finite-range order in quenched crystals of nominal composition Ba2YCu3O6.7. X-ray scattering shows diffuse peaks with a reduced wave vector of (1/2,0,0) in the oxygen-deficient compound but not in fully oxidized Ba2YCu3O7. Although the crystals are twinned, we find that the diffuse satellites occur symmetrically around (h,0,0) peaks rather than (0,k,0) peaks indicating a doubling of the unit cell along the a axis (transverse to the Cu-O chains). The width of the diffuse peaks yields coherence lengths of 21, 16, and 9 AI for the a0, b0, and c0 directions, respectively.
UR - http://www.scopus.com/inward/record.url?scp=0000004316&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.37.7920
DO - 10.1103/PhysRevB.37.7920
M3 - Article
AN - SCOPUS:0000004316
VL - 37
SP - 7920
EP - 7923
JO - Physical Review B
JF - Physical Review B
SN - 0163-1829
IS - 13
ER -