Evolution of transport properties of BaFe2−xRuxAs2 in a wide range of isovalent Ru substitution
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SCOPUS
- Title
- Evolution of transport properties of BaFe2−xRuxAs2 in a wide range of isovalent Ru substitution
- Authors
- Eom, MJ; Na, SW; Hoch, C; Kremer, RK; Kim, JS
- Date Issued
- 2012-01-30
- Publisher
- Americal Physical Society
- Abstract
- The effects of isovalent Ru substitution at the Fe sites of BaFe2-xRuxAs2 are investigated by measuring resistivity (rho) and Hall coefficient (R-H) on high-quality single crystals in a wide range of doping (0 <= x <= 1.4). Ru substitution weakens the antiferromagnetic (AFM) order, inducing superconductivity for relatively high doping level of 0.4 <= x <= 0.9. Near the AFM phase boundary, the transport properties show non-Fermi-liquid-like behavior with a linear-temperature dependence of rho and a strong temperature dependence of R-H with a sign change. Upon higher doping, however, both rho and R-H recover conventional Fermi-liquid behavior. Strong doping dependence of R-H together with a small magnetoresistance suggest that the anomalous transport properties can be explained in terms of anisotropic charge carrier scattering due to interband AFM fluctuations rather than a conventional multiband scenario.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12284
- DOI
- 10.1103/PHYSREVB.85.024536
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 85, no. 2, page. 24536-1 - 24536-7, 2012-01-30
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