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Microscopic and macroscopic signatures of antiferromagnetic domain walls

Jaramillo, R. and Rosenbaum, T. F. and Isaacs, E. D. and Shpyrko, O. G. and Evans, P. G. and Aeppli, G. and Cai, Z. (2007) Microscopic and macroscopic signatures of antiferromagnetic domain walls. Physical Review Letters, 98 (11). Art. No. 117206. ISSN 0031-9007. doi:10.1103/PhysRevLett.98.117206.

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Magnetotransport measurements on small single crystals of Cr, the elemental antiferromagnet, reveal the hysteretic thermodynamics of the domain structure. The temperature dependence of the transport coefficients is directly correlated with the real-space evolution of the domain configuration as recorded by x-ray microprobe imaging, revealing the effect of antiferromagnetic domain walls on electron transport. A single antiferromagnetic domain wall interface resistance is deduced to be of order 5×10^(−5)  μΩ cm^2 at a temperature of 100 K.

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Additional Information:© 2007 The American Physical Society. (Received 13 November 2006; published 16 March 2007). We are indebted to Leslie Sanford for assistance with sample preparation. The work at the University of Chicago was supported by the National Science Foundation, Grant No. DMR-0534296. The Advanced Photon Source is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. W-31-109-Eng-38. R. J. gratefully acknowledges additional financial support from the NSF. The work in London was funded by the Royal Society and the Basic Technologies programme of RCUK.
Funding AgencyGrant Number
Department of Energy (DOE)W-31-109-ENG-38
Research Councils UK (RCUK)UNSPECIFIED
Issue or Number:11
Classification Code:PACS numbers: 75.50.Ee, 72.20.My, 73.90.+f, 75.60.Ch
Record Number:CaltechAUTHORS:20140707-163027527
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46945
Deposited By: George Porter
Deposited On:14 Jul 2014 16:58
Last Modified:10 Nov 2021 17:31

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