Coordination imperfection suppressed phase stability of ferromagnetic, ferroelectric, and superconductive nanosolids

Chang Q. Sun; W. H. Zhong; S. Li; B. K. Tay; H. L. Bai; E. Y. Jiang

doi:10.1021/jp0372946

Coordination imperfection suppressed phase stability of ferromagnetic, ferroelectric, and superconductive nanosolids

Chang Q. Sun^*, W. H. Zhong, S. Li, B. K. Tay, H. L. Bai, E. Y. Jiang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

83 Citations (Scopus)

Abstract

Incorporating the recent bond order-length-strength correlation mechanism [Sun; et al. J. Phys. Chem. B 2002, 106, 10701] into the Ising premise has led to consistent insight, with an analytical expression, into the Curie temperature (T_C) suppression of ferromagnetic, ferroelectric, and superconductive nanosolids. The phase stability is related to the atomic cohesive/exchange energy that is lowered by the coordination number (CN) imperfection of the lower coordinated atoms near the surface edge. A numerical match between predictions and measurements for a number of specimens reveals that the short spin-spin correlation dominates the exchange interaction in the ferromagnetic Fe, Co, Ni, and Fe₃O₂ nanosolids, whereas the long-range interaction dominates the exchange energy for the ferroelectric PbTiO₃, PbZrO₃, SrBi₂Ta₂O₉, and BaTiO₃ and the superconductive MgB₂ nanosolids.

Original language	English
Pages (from-to)	1080-1084
Number of pages	5
Journal	Journal of Physical Chemistry B
Volume	108
Issue number	3
DOIs	https://doi.org/10.1021/jp0372946
Publication status	Published - Jan 22 2004
Externally published	Yes

ASJC Scopus Subject Areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "Coordination imperfection suppressed phase stability of ferromagnetic, ferroelectric, and superconductive nanosolids",

abstract = "Incorporating the recent bond order-length-strength correlation mechanism [Sun; et al. J. Phys. Chem. B 2002, 106, 10701] into the Ising premise has led to consistent insight, with an analytical expression, into the Curie temperature (TC) suppression of ferromagnetic, ferroelectric, and superconductive nanosolids. The phase stability is related to the atomic cohesive/exchange energy that is lowered by the coordination number (CN) imperfection of the lower coordinated atoms near the surface edge. A numerical match between predictions and measurements for a number of specimens reveals that the short spin-spin correlation dominates the exchange interaction in the ferromagnetic Fe, Co, Ni, and Fe3O2 nanosolids, whereas the long-range interaction dominates the exchange energy for the ferroelectric PbTiO3, PbZrO3, SrBi2Ta2O9, and BaTiO3 and the superconductive MgB2 nanosolids.",

author = "Sun, {Chang Q.} and Zhong, {W. H.} and S. Li and Tay, {B. K.} and Bai, {H. L.} and Jiang, {E. Y.}",

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AU - Sun, Chang Q.

AU - Zhong, W. H.

AU - Li, S.

AU - Tay, B. K.

AU - Bai, H. L.

AU - Jiang, E. Y.

PY - 2004/1/22

Y1 - 2004/1/22

N2 - Incorporating the recent bond order-length-strength correlation mechanism [Sun; et al. J. Phys. Chem. B 2002, 106, 10701] into the Ising premise has led to consistent insight, with an analytical expression, into the Curie temperature (TC) suppression of ferromagnetic, ferroelectric, and superconductive nanosolids. The phase stability is related to the atomic cohesive/exchange energy that is lowered by the coordination number (CN) imperfection of the lower coordinated atoms near the surface edge. A numerical match between predictions and measurements for a number of specimens reveals that the short spin-spin correlation dominates the exchange interaction in the ferromagnetic Fe, Co, Ni, and Fe3O2 nanosolids, whereas the long-range interaction dominates the exchange energy for the ferroelectric PbTiO3, PbZrO3, SrBi2Ta2O9, and BaTiO3 and the superconductive MgB2 nanosolids.

AB - Incorporating the recent bond order-length-strength correlation mechanism [Sun; et al. J. Phys. Chem. B 2002, 106, 10701] into the Ising premise has led to consistent insight, with an analytical expression, into the Curie temperature (TC) suppression of ferromagnetic, ferroelectric, and superconductive nanosolids. The phase stability is related to the atomic cohesive/exchange energy that is lowered by the coordination number (CN) imperfection of the lower coordinated atoms near the surface edge. A numerical match between predictions and measurements for a number of specimens reveals that the short spin-spin correlation dominates the exchange interaction in the ferromagnetic Fe, Co, Ni, and Fe3O2 nanosolids, whereas the long-range interaction dominates the exchange energy for the ferroelectric PbTiO3, PbZrO3, SrBi2Ta2O9, and BaTiO3 and the superconductive MgB2 nanosolids.

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Coordination imperfection suppressed phase stability of ferromagnetic, ferroelectric, and superconductive nanosolids

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