Microscopic Coexistence of Superconductivity and Antiferromagnetism in Underdoped Ba(Fe1-xRux)2As2
SCIE
SCOPUS
- Title
- Microscopic Coexistence of Superconductivity and Antiferromagnetism in Underdoped Ba(Fe1-xRux)2As2
- Authors
- Ma, L; Ji, GF; Dai, J; Lu, XR; Eom, MJ; Kim, JS; Norm; , B; Yu, WQ
- Date Issued
- 2012-11-07
- Publisher
- Americal Physical Society
- Abstract
- We use As-75 nuclear magnetic resonance to investigate the local electronic properties of Ba(Fe1-xRux)(2)As-2 (x = 0.23). We find two phase transitions: to antiferromagnetism at T-N approximate to 60 K and to superconductivity at T-C approximate to 15 K. Below T-N, our data show that the system is fully magnetic, with a commensurate antiferromagnetic structure and a moment of 0.4 mu(B)/Fe. The spin-lattice relaxation rate 1/T-75(1) is large in the magnetic state, indicating a high density of itinerant electrons induced by Ru doping. On cooling below T-C, 1/T-75(1) on the magnetic sites falls sharply, providing unambiguous evidence for the microscopic coexistence of antiferromagnetism and superconductivity.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12493
- DOI
- 10.1103/PHYSREVLETT.109.197002
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 109, no. 19, page. 197002, 2012-11-07
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