Abstract
A new oxygen-deficient perovskite, LaSrCuAlO5, has been prepared. The compound crystallizes in the orthorhombic crystal system with the space group Pbcm. The unit cell dimensions (Z = 4) are a = 7.9219(6), b = 11.020(1), and c = 5.4235(4) Å. The compound is a layered copper oxide with a structure related to that of the mineral brownmillerite. Important structural features include buckled copper oxygen planes and nonmagnetic, insulating aluminum-oxygen chains that alternate with the copper oxygen planes along the 7.9-Å axis. Resistivity measurements show that LaSrCuAlO5 is a semiconductor (ρ{variant}300 K = 0.065 Ω cm) and magnetic susceptibility measurements demonstrate that the compound is paramagnetic down to 4 K.
| Original language | English |
|---|---|
| Pages (from-to) | 250-260 |
| Number of pages | 11 |
| Journal | Journal of Solid State Chemistry |
| Volume | 88 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1990 |
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ASJC Scopus subject areas
- Inorganic Chemistry
- Physical and Theoretical Chemistry
- Materials Chemistry
Cite this
LaSrCuAlO5 : A new oxygen-deficient perovskite structure. / Wiley, J. B.; Sabat, M.; Hwu, S. J.; Poeppelmeier, Kenneth R; Reller, A.; Williams, T.
In: Journal of Solid State Chemistry, Vol. 88, No. 1, 1990, p. 250-260.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - LaSrCuAlO5
T2 - A new oxygen-deficient perovskite structure
AU - Wiley, J. B.
AU - Sabat, M.
AU - Hwu, S. J.
AU - Poeppelmeier, Kenneth R
AU - Reller, A.
AU - Williams, T.
PY - 1990
Y1 - 1990
N2 - A new oxygen-deficient perovskite, LaSrCuAlO5, has been prepared. The compound crystallizes in the orthorhombic crystal system with the space group Pbcm. The unit cell dimensions (Z = 4) are a = 7.9219(6), b = 11.020(1), and c = 5.4235(4) Å. The compound is a layered copper oxide with a structure related to that of the mineral brownmillerite. Important structural features include buckled copper oxygen planes and nonmagnetic, insulating aluminum-oxygen chains that alternate with the copper oxygen planes along the 7.9-Å axis. Resistivity measurements show that LaSrCuAlO5 is a semiconductor (ρ{variant}300 K = 0.065 Ω cm) and magnetic susceptibility measurements demonstrate that the compound is paramagnetic down to 4 K.
AB - A new oxygen-deficient perovskite, LaSrCuAlO5, has been prepared. The compound crystallizes in the orthorhombic crystal system with the space group Pbcm. The unit cell dimensions (Z = 4) are a = 7.9219(6), b = 11.020(1), and c = 5.4235(4) Å. The compound is a layered copper oxide with a structure related to that of the mineral brownmillerite. Important structural features include buckled copper oxygen planes and nonmagnetic, insulating aluminum-oxygen chains that alternate with the copper oxygen planes along the 7.9-Å axis. Resistivity measurements show that LaSrCuAlO5 is a semiconductor (ρ{variant}300 K = 0.065 Ω cm) and magnetic susceptibility measurements demonstrate that the compound is paramagnetic down to 4 K.
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U2 - 10.1016/0022-4596(90)90222-J
DO - 10.1016/0022-4596(90)90222-J
M3 - Article
VL - 88
SP - 250
EP - 260
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
IS - 1
ER -