Impact of uniaxial pressure on structural and magnetic phase transitions in electron-doped iron pnictides

dc.citation.journalTitlePhysical Review Ben_US
dc.contributor.authorLu, Xingyeen_US
dc.contributor.authorTseng, Kuo-Fengen_US
dc.contributor.authorKeller, T.en_US
dc.contributor.authorZhang, Wenliangen_US
dc.contributor.authorHu, Dingen_US
dc.contributor.authorSong, Yuen_US
dc.contributor.authorMan, Haoranen_US
dc.contributor.authorPark, J.T.en_US
dc.contributor.authorLuo, Huiqianen_US
dc.contributor.authorLi, Shiliangen_US
dc.contributor.authorNevidomskyy, Andriy H.en_US
dc.contributor.authorDai, Pengchengen_US
dc.description.abstractWe use neutron resonance spin echo and Larmor diffraction to study the effect of uniaxial pressure on the tetragonal-to-orthorhombic structural (Ts) and antiferromagnetic (AF) phase transitions in iron pnictides BaFe2−xNixAs2 (x=0,0.03,0.12),SrFe1.97Ni0.03As2, and BaFe2(As0.7P0.3)2. In antiferromagnetically ordered BaFe2−xNixAs2 and SrFe1.97Ni0.03As2 with TN and Ts (TN≤Ts), a uniaxial pressure necessary to detwin the sample also increases TN, smears out the structural transition, and induces an orthorhombic lattice distortion at all temperatures. By comparing temperature and doping dependence of the pressure induced lattice parameter changes with the elastoresistance and nematic susceptibility obtained from transport and ultrasonic measurements, we conclude that the in-plane resistivity anisotropy found in the paramagnetic state of electron underdoped iron pnictides depends sensitively on the nature of the magnetic phase transition and a strong coupling between the uniaxial pressure induced lattice distortion and electronic nematic susceptibility.en_US
dc.identifier.citationLu, Xingye, Tseng, Kuo-Feng, Keller, T., et al.. "Impact of uniaxial pressure on structural and magnetic phase transitions in electron-doped iron pnictides." <i>Physical Review B,</i> 93, no. 13 (2016) American Physical Society:
dc.publisherAmerican Physical Society
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titleImpact of uniaxial pressure on structural and magnetic phase transitions in electron-doped iron pnictidesen_US
dc.typeJournal articleen_US
dc.type.publicationpublisher versionen_US
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