Composition dependent phase transformation of Pt0.5-xMn 0.5+x from A1 to L10 phase

C. X. Ji; M. L. Huang; M. J. Kramer; C. Zhang; K. S. Wu; Y. Yang; Y. A. Chang

doi:10.1007/s00339-010-5557-8

Composition dependent phase transformation of Pt_0.5-xMn _0.5+x from A1 to L1₀ phase

C. X. Ji, M. L. Huang, M. J. Kramer, C. Zhang, K. S. Wu, Y. Yang, Y. A. Chang

Multiscale Modeling & Materials by Desig

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Abstract

Pt_0.5-xMn_0.5+x films were prepared by sputtering deposition of Pt foil and Mn target to study the order-disorder transition from a thermodynamic metastable fcc (A1) phase to L1₀ phase. Both Differential Scanning Calorimetry and High Temperature X-Ray Diffraction studies showed the phase transformation from fcc to the L1₀ structure for the Pt_0.50Mn_0.50 and Pt_0.40Mn_0.60 samples but along completely different kinetic paths. A composition dependent phase transformation was observed by comprehensive Differential Scanning Calorimetry studies on a series of Pt_0.5-xMn_0.5+x samples. The changes of the lattice parameter and the cell volume of L1₀ Pt_0.5-xMn_0.5+x as a function of composition suggest that the anti-site is not the dominant point defect for L1₀ Pt _0.5-xMn_0.5+x .

Original language	English
Pages (from-to)	471-475
Number of pages	5
Journal	Applied Physics A: Materials Science and Processing
Volume	99
Issue number	2
DOIs	https://doi.org/10.1007/s00339-010-5557-8
State	Published - May 2010

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title = "Composition dependent phase transformation of Pt0.5-xMn 0.5+x from A1 to L10 phase",

abstract = "Pt0.5-xMn0.5+x films were prepared by sputtering deposition of Pt foil and Mn target to study the order-disorder transition from a thermodynamic metastable fcc (A1) phase to L10 phase. Both Differential Scanning Calorimetry and High Temperature X-Ray Diffraction studies showed the phase transformation from fcc to the L10 structure for the Pt0.50Mn0.50 and Pt0.40Mn0.60 samples but along completely different kinetic paths. A composition dependent phase transformation was observed by comprehensive Differential Scanning Calorimetry studies on a series of Pt0.5-xMn0.5+x samples. The changes of the lattice parameter and the cell volume of L10 Pt0.5-xMn0.5+x as a function of composition suggest that the anti-site is not the dominant point defect for L10 Pt 0.5-xMn0.5+x .",

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T1 - Composition dependent phase transformation of Pt0.5-xMn 0.5+x from A1 to L10 phase

AU - Ji, C. X.

AU - Huang, M. L.

AU - Kramer, M. J.

AU - Zhang, C.

AU - Wu, K. S.

AU - Yang, Y.

AU - Chang, Y. A.

PY - 2010/5

Y1 - 2010/5

N2 - Pt0.5-xMn0.5+x films were prepared by sputtering deposition of Pt foil and Mn target to study the order-disorder transition from a thermodynamic metastable fcc (A1) phase to L10 phase. Both Differential Scanning Calorimetry and High Temperature X-Ray Diffraction studies showed the phase transformation from fcc to the L10 structure for the Pt0.50Mn0.50 and Pt0.40Mn0.60 samples but along completely different kinetic paths. A composition dependent phase transformation was observed by comprehensive Differential Scanning Calorimetry studies on a series of Pt0.5-xMn0.5+x samples. The changes of the lattice parameter and the cell volume of L10 Pt0.5-xMn0.5+x as a function of composition suggest that the anti-site is not the dominant point defect for L10 Pt 0.5-xMn0.5+x .

AB - Pt0.5-xMn0.5+x films were prepared by sputtering deposition of Pt foil and Mn target to study the order-disorder transition from a thermodynamic metastable fcc (A1) phase to L10 phase. Both Differential Scanning Calorimetry and High Temperature X-Ray Diffraction studies showed the phase transformation from fcc to the L10 structure for the Pt0.50Mn0.50 and Pt0.40Mn0.60 samples but along completely different kinetic paths. A composition dependent phase transformation was observed by comprehensive Differential Scanning Calorimetry studies on a series of Pt0.5-xMn0.5+x samples. The changes of the lattice parameter and the cell volume of L10 Pt0.5-xMn0.5+x as a function of composition suggest that the anti-site is not the dominant point defect for L10 Pt 0.5-xMn0.5+x .

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DO - 10.1007/s00339-010-5557-8

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JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

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ER -

Composition dependent phase transformation of Pt_0.5-xMn _0.5+x from A1 to L1₀ phase

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