| Download | - View accepted manuscript: Effect of uniaxial strain on the structural and magnetic phase transitions in BaFe2As2 (PDF, 841 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevLett.108.087001 |
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| Author | Search for: Dhital, Chetan; Search for: Yamani, Z.1; Search for: Tian, Wei; Search for: Zeretsky, J.; Search for: Sefat, A. S.; Search for: Wang, Ziqiang; Search for: Birgeneau, R. J.; Search for: Wilson, Stephen D. |
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| Affiliation | - National Research Council of Canada. NRC Canadian Neutron Beam Centre
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| Format | Text, Article |
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| Abstract | We report neutron scattering experiments probing the influence of uniaxial strain on both the magnetic and structural order parameters in the parent iron pnictide compound, BaFe₂As₂. Our data show that modest strain fields along the in-plane orthorhombic b axis can affect significant changes in phase behavior simultaneous to the removal of structural twinning effects. As a result, we demonstrate in BaFe₂As₂ samples detwinned via uniaxial strain that the in-plane C₄ symmetry is broken by both the structural lattice distortion and long-range spin ordering at temperatures far above the nominal (strain-free) phase transition temperatures. Surprising changes in the magnetic order parameter of this system under relatively small strain fields also suggest the inherent presence of magnetic domains fluctuating above the strain-free ordering temperature in this material. |
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| Publication date | 2012-02-22 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 20140154 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | ceb8ba87-cf72-41c5-bd77-92873e4ec528 |
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| Record created | 2012-06-14 |
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| Record modified | 2020-04-21 |
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