A search for field-induced ordering in the optimally doped Ba(Fe, Co)(2)As-2 superconductor

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2013-03-18
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Quinn, Katherine
Ryan, D. H.
Bud’ko, Sergey
Cadogan, J. M.
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Canfield, Paul
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Ames National Laboratory

Ames National Laboratory is a government-owned, contractor-operated national laboratory of the U.S. Department of Energy (DOE), operated by and located on the campus of Iowa State University in Ames, Iowa.

For more than 70 years, the Ames National Laboratory has successfully partnered with Iowa State University, and is unique among the 17 DOE laboratories in that it is physically located on the campus of a major research university. Many of the scientists and administrators at the Laboratory also hold faculty positions at the University and the Laboratory has access to both undergraduate and graduate student talent.

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Physics and Astronomy
Physics and astronomy are basic natural sciences which attempt to describe and provide an understanding of both our world and our universe. Physics serves as the underpinning of many different disciplines including the other natural sciences and technological areas.
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A Fe-57 Mossbauer search for field-induced magnetic order in optimally doped Ba(Fe1-xCox)(2)As-2 in fields of up to 6 T showed no changes that could be attributed to field-induced order. We also observed no difference between the normal (30 K) and superconducting states (5 K). Any field-induced order is certainly less than 1% of the order present in the parent BaFe2As2.

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This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Quinn, Katherine, D. H. Ryan, P. C. Canfield, S. L. Bud'ko, and J. M. Cadogan. "A search for field-induced ordering in the optimally doped Ba (Fe, Co) 2 As 2 superconductor." Journal of Applied Physics 113, no. 17 (2013): 17E127, and may be found at DOI: 10.1063/1.4795421. Posted with permission.

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Tue Jan 01 00:00:00 UTC 2013
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