Role of the Lattice in the γ → α Phase Transition of Ce: A High-Pressure Neutron and X-Ray Diffraction Study

I. K. Jeong; T. W. Darling; M. J. Graf; Th Proffen; R. H. Heffner; Yongjae Lee; T. Vogt; J. D. Jorgensen

doi:10.1103/PhysRevLett.92.105702

Role of the Lattice in the γ → α Phase Transition of Ce: A High-Pressure Neutron and X-Ray Diffraction Study

I. K. Jeong, T. W. Darling, M. J. Graf, Th Proffen, R. H. Heffner, Yongjae Lee, T. Vogt, J. D. Jorgensen

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Abstract

The lattice parameters and thermal displacements in the γ → α phase transition of Ce was investigated for. Using the framework of electron-phonon coupling, it was observed that the bulk modulus follows a power-law pressure dependence. The energy for the phase transition was provided by the kinetic energy of the itinerant f electron. the results show that in addition to electronic and spin instabilities, lattice dynamics and electron-phonon coupling are essential elements for the study of the γ → α phase transition in elemental Ce.

Original language	English
Article number	105702
Pages (from-to)	105702-1-105702-4
Journal	Physical review letters
Volume	92
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.92.105702
Publication status	Published - 2004 Mar 12

Bibliographical note

Funding Information:
We gratefully acknowledge discussions with Y. Bang, D. Hatch, A. C. Lawson, P. Riseborough, J. Lawrence, J. M. Wills, and are thankful to A. C. L. and S. Short for helping with the data collection. The work at LANL was carried out under the auspices of the U.S. DOE/Office of Science. The data were collected at LANSCE (LANL), IPNS (ANL), and the NSLS (BNL), which are supported by the U.S. Department of Energy.

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Physics and Astronomy(all)

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10.1103/PhysRevLett.92.105702

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title = "Role of the Lattice in the γ → α Phase Transition of Ce: A High-Pressure Neutron and X-Ray Diffraction Study",

abstract = "The lattice parameters and thermal displacements in the γ → α phase transition of Ce was investigated for. Using the framework of electron-phonon coupling, it was observed that the bulk modulus follows a power-law pressure dependence. The energy for the phase transition was provided by the kinetic energy of the itinerant f electron. the results show that in addition to electronic and spin instabilities, lattice dynamics and electron-phonon coupling are essential elements for the study of the γ → α phase transition in elemental Ce.",

author = "Jeong, {I. K.} and Darling, {T. W.} and Graf, {M. J.} and Th Proffen and Heffner, {R. H.} and Yongjae Lee and T. Vogt and Jorgensen, {J. D.}",

note = "Funding Information: We gratefully acknowledge discussions with Y. Bang, D. Hatch, A. C. Lawson, P. Riseborough, J. Lawrence, J. M. Wills, and are thankful to A. C. L. and S. Short for helping with the data collection. The work at LANL was carried out under the auspices of the U.S. DOE/Office of Science. The data were collected at LANSCE (LANL), IPNS (ANL), and the NSLS (BNL), which are supported by the U.S. Department of Energy.",

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T2 - A High-Pressure Neutron and X-Ray Diffraction Study

AU - Jeong, I. K.

AU - Darling, T. W.

AU - Graf, M. J.

AU - Proffen, Th

AU - Heffner, R. H.

AU - Lee, Yongjae

AU - Vogt, T.

AU - Jorgensen, J. D.

N1 - Funding Information: We gratefully acknowledge discussions with Y. Bang, D. Hatch, A. C. Lawson, P. Riseborough, J. Lawrence, J. M. Wills, and are thankful to A. C. L. and S. Short for helping with the data collection. The work at LANL was carried out under the auspices of the U.S. DOE/Office of Science. The data were collected at LANSCE (LANL), IPNS (ANL), and the NSLS (BNL), which are supported by the U.S. Department of Energy.

PY - 2004/3/12

Y1 - 2004/3/12

N2 - The lattice parameters and thermal displacements in the γ → α phase transition of Ce was investigated for. Using the framework of electron-phonon coupling, it was observed that the bulk modulus follows a power-law pressure dependence. The energy for the phase transition was provided by the kinetic energy of the itinerant f electron. the results show that in addition to electronic and spin instabilities, lattice dynamics and electron-phonon coupling are essential elements for the study of the γ → α phase transition in elemental Ce.

AB - The lattice parameters and thermal displacements in the γ → α phase transition of Ce was investigated for. Using the framework of electron-phonon coupling, it was observed that the bulk modulus follows a power-law pressure dependence. The energy for the phase transition was provided by the kinetic energy of the itinerant f electron. the results show that in addition to electronic and spin instabilities, lattice dynamics and electron-phonon coupling are essential elements for the study of the γ → α phase transition in elemental Ce.

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Role of the Lattice in the γ → α Phase Transition of Ce: A High-Pressure Neutron and X-Ray Diffraction Study

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Bibliographical note

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