John Mitchell

  • Senior Chemist
  • Bldg. 223 C-225
  • Phone: (630) 252-5852
  • Fax: (630) 252-7777
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John F. Mitchell is a Senior Scientist in the Materials Science Division at Argonne National Laboratory. He received his B.A. summa cum laude from Cornell University in 1987 and his Ph.D. from the University of Chicago in 1993 for theoretical studies of defect structures and order-disorder transitions of early transition metal chalcogenides. From 1993-1996, he was a DOE Distinguished Postdoctoral Fellow at Argonne's Materials Science Division, where his research involved synthesis of superconducting cuprates and then synthesis and crystal growth of rare earth manganites exhibiting colossal magnetoresistance. Appointed to the staff in 1996, his current research emphasizes strategic synthesis, crystal growth, and structural studies of transition metal oxides and chalcogenides using neutron and x-ray scattering,. Mitchell is author or co-author of more than 200 peer-reviewed articles in scholarly journals. He has coordinated the development team for a high-resolution powder diffractometer at the Advanced Photon Source. He has also led a project in the DOE Center of Excellence in Synthesis and Processing entitled "Spin Polarized Transport in Complex Oxides." He was awarded the DOE Early Career Award and the Presidential Early Career Award for Scientists and Engineers in 1999 and 2000, respectively. He received the University of Chicago Distinguished Performance Award for Argonne Scientists in 2006. He is a Fellow of the American Physical Society, and a member of the American Physical Society, American Crystallographic Society, Materials Research Society, and American Chemical Society.

Selected Publications

“Polaron coherence condensation as the mechanism for colossal magnetoresistance in layered manganites,” N. Mannella, W.S. Yang, K. Tanaka, X.J. Zhou, H. Zheng, J.F. Mitchell, J. Zaanen, T.P. Devereaux, N. Nagaosa, Z. Hussain and Z.X. Shen, Phys. Rev. B 76, 233102 (2007) [doi]

“Formation of Co3+ octahedra and tetrahedra in YBaCo4O8.1,” O. Chmaissem, H. Zheng, A. Huq, P.W. Stephens and J.F. Mitchell, J. Solid State Chem. 181, 664-672 (2008) [doi]

“Charge and orbital ordered phases of La1.2Sr1.8Mn2O7-d” H. Zheng, Q. Li, K.E. Gray and J.F. Mitchell, Phys. Rev. B 78, 155103 (2008) [doi]

“Signature of checkerboard fluctuations in the phonon spectra of a possible polaronic metal La1.2Sr1.8Mn2O7,” F. Weber, N. Aliouane, H. Zheng, J.F. Mitchell, D.N. Argyriou and D. Reznik, Nature Mater. 8, 798-802 (2009) [doi]

“Magnetic Correlations in the Extended Kagome YBaCo4O7 Probed by Single-Crystal Neutron Scattering,” P. Manuel, L.C. Chapon, P.G. Radaelli, H. Zheng, J.F. Mitchell, Phys. Rev. Lett. 103, 037202 (2009) [doi]

“Coexistence of Weak Ferromagnetism and Ferroelectricity in the High Pressure LiNbO3-Type Phase of FeTiO3,” T. Varga, A. Kumar, E. Vlahos, S. Denev, M. Park, S. Hong, T. Sanehira, Y. Wang, C.J. Fennie, S.K. Streiffer, P. Schiffer, V. Gopalan and J.F. Mitchell, Phys. Rev. Lett. 103, 047601 (2009) [doi]

“High-pressure synthesis, crystal and electronic structures of a new scandium tungstate, Sc0.67WO4,” T. Varga, J.F. Mitchell, J. Wang, L. Arnold, G. Lindsay, B. Toby and C. Malliakas, J. Solid State Chem. 183, 1567-1573 (2010) [doi]

“Spin correlations in the geometrically frustrated RBaCo4O7 antiferromagnets: Mean-field approach and Monte Carlo simulations,” D. Khalyavin, P. Manuel, J.F. Mitchell and L.C. Chapon, Phys. Rev. B 82, 094401 (2010) [doi]