Solid solution of (Nd-x, Sm1-x)AlO3 was synthesized by a solid state reaction and the structural change caused by the substitution of Nd for Sm was investigated by X-ray powder diffraction at room temperature. Phase transitions from orthorhombic to trigonal forms were also observed by the use of a high-temperature powder X-ray diffraction and a differential scanning calorimetry. The phase transition temperatures T-c are linearly related to the amount of the substitution of Nd for Sm. Thus, T-c and the structural characteristics such as lattice distortion are controllable by an appropriate amount of substitution of Nd for Sm. It is concluded that the phase transitions belong to a first-order transition from the structural relationship between low and high temperature forms.
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Univ Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, BrazilUniv Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, Brazil
Fabian, F. A.
Moura, K. O.
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Univ Estadual Campinas, Inst Fis Gleb Wataghin, CP 6165, BR-13083970 Campinas, SP, BrazilUniv Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, Brazil
Moura, K. O.
Barbosa, C. C. S.
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Univ Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, BrazilUniv Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, Brazil
Barbosa, C. C. S.
Peixoto, E. B.
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Univ Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, BrazilUniv Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, Brazil
Peixoto, E. B.
Garcia, F.
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Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ, BrazilUniv Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, Brazil
Garcia, F.
Duque, J. G. S.
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Univ Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, Brazil
Univ Estadual Campinas, Inst Fis Gleb Wataghin, CP 6165, BR-13083970 Campinas, SP, BrazilUniv Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, Brazil
Duque, J. G. S.
Meneses, C. T.
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Univ Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, BrazilUniv Fed Sergipe, Nucleo Posgrad Fis, Campus Prof Jose Aloisio de Campos, BR-49100000 Sao Cristovao, SE, Brazil