Pressure effects on iron-based superconductors; A First-principles study

Nakamura, Hiroki ; Machida, Masahiko

We investigate pressure effects on an iron-based superconductor LaFeAsO using first-principle calculations. As the pressure increases, we find a structural transition from the orthorhombic to the tetragonal crystal with a disappearance of the antiferromagnetically ordered magnetic moment at 24 GPa in agreement with an experimental observation. Moreover, the calculations reveal that the structural transition is almost the second-order phase transition.

Language	:	English
Journal	:	Physica C
Volume	:	470
Number	:	Suppl.1
Pages	:	p.S387 - S388
Publication Year/Month	:	2010/12
Meeting title	:	9th International Conference on Materials and Mechanisms of Superconductivity (M $^{2}$ S-IX)
Held date	:	2009/09
Location (city)	:	Tokyo
Location (country)	:	Japan
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.1016/j.physc.2009.12.024
DOI for research data	:
Keywords	:	no keyword
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Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	科学技術振興機構

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Web of Science® Times Cited Count	:	Times Cited Count： If you would like to get the latest times cited, please access the Web of Science®. http://www.webofknowledge.com/wos
InCites™	:	Percentile:6.46 Category:Physics, Applied
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Registration No. : BB20092023
JAEA Abstracts No. : 39000186
Paper Submission No. : 8416

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