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  Nonlinear pressure dependence of TN in almost multiferroic EuTiO3

Guguchia, Z., Caslin, K., Kremer, R. K., Keller, H., Shengelaya, A., Maisuradze, A., et al. (2013). Nonlinear pressure dependence of TN in almost multiferroic EuTiO3. Journal of Physics: Condensed Matter, 25(37): 376002.

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Guguchia, Z., Author
Caslin, K., Author
Kremer, R. K.1, Author           
Keller, H., Author
Shengelaya, A., Author
Maisuradze, A., Author
Bettis, J. L., Author
Köhler, J.2, 3, Author           
Bussmann-Holder, A.2, 3, 4, 5, Author           
Whangbo, M. H.2, 3, Author           
Affiliations:
1Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370501              
2Former Departments, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370502              
3Department Nanochemistry (Bettina V. Lotsch), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370482              
4Department Electronic Structure Theory (Ali Alavi), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370479              
5Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370483              

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 Abstract: The antiferromagnetic (AFM) phase transition temperature T-N of EuTiO3 has been studied as a function of pressure p. The data reveal a nonlinear dependence of T-N on p with T-N increasing with increasing pressure. The exchange interactions exhibit an analogous dependence on p as T-N (if the absolute value of the nearest neighbor interaction is considered) and there is evidence that the AFM transition is robust with increasing pressure. The corresponding Weiss temperature Theta(W) remains anomalous since it always exhibits positive values. The data are analyzed within the Bloch power law model and provide excellent agreement with experiment.

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Language(s): eng - English
 Dates: 2013
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Internal
 Identifiers: eDoc: 672363
ISI: 000323617900020
 Degree: -

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Title: Journal of Physics: Condensed Matter
Source Genre: Journal
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Pages: - Volume / Issue: 25 (37) Sequence Number: 376002 Start / End Page: - Identifier: ISSN: 0953-8984