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Antiferromagnetic spin correlations and pseudogaplike behavior in Ca(Fe1-xCox)(2)As-2 studied by As-75 nuclear magnetic resonance and anisotropic resistivity

TitleAntiferromagnetic spin correlations and pseudogaplike behavior in Ca(Fe1-xCox)(2)As-2 studied by As-75 nuclear magnetic resonance and anisotropic resistivity
Publication TypeJournal Article
Year of Publication2015
AuthorsCui, J, Roy, B, Tanatar, MA, Ran, S, Bud'ko, SL, Prozorov, R, Canfield, PC, Furukawa, Y
JournalPhysical Review B
Volume92
Pagination184504
Date Published11
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberWOS:000364214000005
Keywordsgrowth, iron pnictides, superconductivity
Abstract

or in the spin excitation spectra of these systems. The T* feature finds correlation with features in the temperature-dependent interplane resistivity, rho(c)(T), but not with the in-plane resistivity rho(a) (T). The temperature evolution of anisotropic stripe-type AFM spin fluctuations is tracked in the paramagnetic and pseudogap phases by the 1/T-1 data measured under magnetic fields parallel and perpendicular to the c axis. Based on our NMR data, we have added a pseudogaplike phase to the magnetic and electronic phase diagram of Ca(Fe1-xCox)(2)As-2.

DOI10.1103/PhysRevB.92.184504
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Complex States