Abstract
Four perovskite compounds with nominal compositions of (Gd 0.5Th0.5)NiO3, (Gd0.5Ce 0.5)NiO3, (Yb0.5Th0.5)NiO 3 and (Yb0.5Ce0.5)NiO3 were prepared by a polymeric citrate precursor method. They were either slow-cooled in the furnace or quenched to room temperature. All of them have monoclinic symmetry. Quenched samples have a slightly bigger unit cell volume and longer Ni-O bond length, and a smaller grain size than that of the furnace-cooled compounds. All samples are paramagnetic insulators in the range of 2 K to 300 K. The Th containing compounds have larger tolerance factor and Ni(1)-O(1)-Ni(2) bond angle than that of the Ce containing compounds. No mixed valence of Ce, Th and Ni is observed in these samples.
| Original language | English |
|---|---|
| Pages (from-to) | 3443-3447 |
| Number of pages | 5 |
| Journal | International Journal of Modern Physics B |
| Volume | 21 |
| Issue number | 18-19 |
| Publication status | Published - 2007 Jul 30 |
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All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Condensed Matter Physics
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Structural and magnetic properties of (Ro0.5A 0.5)NIO3 perovskites (R = GD, YB and A = CE, TH). / Chen, J. W.; Liu, H. M.; Kao, H. C.I.; Sheu, H. S.; Lee, J. F.; Ling, D. C.; Pong, W. F.; Horng, Lance.
In: International Journal of Modern Physics B, Vol. 21, No. 18-19, 30.07.2007, p. 3443-3447.Research output: Contribution to journal › Article
TY - JOUR
T1 - Structural and magnetic properties of (Ro0.5A 0.5)NIO3 perovskites (R = GD, YB and A = CE, TH)
AU - Chen, J. W.
AU - Liu, H. M.
AU - Kao, H. C.I.
AU - Sheu, H. S.
AU - Lee, J. F.
AU - Ling, D. C.
AU - Pong, W. F.
AU - Horng, Lance
PY - 2007/7/30
Y1 - 2007/7/30
N2 - Four perovskite compounds with nominal compositions of (Gd 0.5Th0.5)NiO3, (Gd0.5Ce 0.5)NiO3, (Yb0.5Th0.5)NiO 3 and (Yb0.5Ce0.5)NiO3 were prepared by a polymeric citrate precursor method. They were either slow-cooled in the furnace or quenched to room temperature. All of them have monoclinic symmetry. Quenched samples have a slightly bigger unit cell volume and longer Ni-O bond length, and a smaller grain size than that of the furnace-cooled compounds. All samples are paramagnetic insulators in the range of 2 K to 300 K. The Th containing compounds have larger tolerance factor and Ni(1)-O(1)-Ni(2) bond angle than that of the Ce containing compounds. No mixed valence of Ce, Th and Ni is observed in these samples.
AB - Four perovskite compounds with nominal compositions of (Gd 0.5Th0.5)NiO3, (Gd0.5Ce 0.5)NiO3, (Yb0.5Th0.5)NiO 3 and (Yb0.5Ce0.5)NiO3 were prepared by a polymeric citrate precursor method. They were either slow-cooled in the furnace or quenched to room temperature. All of them have monoclinic symmetry. Quenched samples have a slightly bigger unit cell volume and longer Ni-O bond length, and a smaller grain size than that of the furnace-cooled compounds. All samples are paramagnetic insulators in the range of 2 K to 300 K. The Th containing compounds have larger tolerance factor and Ni(1)-O(1)-Ni(2) bond angle than that of the Ce containing compounds. No mixed valence of Ce, Th and Ni is observed in these samples.
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M3 - Article
AN - SCOPUS:34548803821
VL - 21
SP - 3443
EP - 3447
JO - International Journal of Modern Physics B
JF - International Journal of Modern Physics B
SN - 0217-9792
IS - 18-19
ER -