Pengcheng Dai, a professor in the Physics Department, published a paper in Nature on
high-temperature superconductors that was deemed a “Current Classic” by ScienceWatch in
October 2009. Superconductors carry current with no resistance at increasingly high
temperatures. Dai’s paper, “Magnetic order close to superconductivity in the iron-based
layered La(O1-xFx)FeAs systems,” aims to explain why, zeroing in on magnetism as a key
factor. Dai is featured in a podcast on the ScienceWatch website. “Current Classics” are
papers that have the greatest absolute increase in cumulative citations from the previous
bimonthly period to the present. 

Dai holds a bachelor’s degree in physics from Zhengzhou University and a Ph.D. in physics
from the University of Missouri. In July 2003 he was named an Outstanding Young
Researcher by the Overseas Chinese Physics Association. In the fall of 2008, he was named
to a Chair of Excellence for the UT-Oak Ridge National Laboratory Joint Institute for
Advanced Materials, “for his pioneering work in elucidating the origin of the novel
functionality in correlated electron materials using neutron scattering.” Dai is a fellow
of the American Physical Society and the author of more than 110 publications, publishing
29 papers since January 2008.

Articles

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Electron doping evolution of the anisotropic spin excitations in BaFe2−xNixAs2 (with Huiqian Luo, Zahra Yamani, Yanchao Chen, Xingye Lu, Meng Wang, Shilliang Li, Thomas A. Maier, Sergey Danilkin, and D. T. Adroja), Phys. Rev. B. (2012)

We use inelastic neutron scattering to systematically investigate the Ni-doping evolution of the low-energy spin...

 

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Neutron scattering studies of spin excitations in superconducting Rb0.82Fe1.68Se2 (with Miaoyin Wang, Chunhong Li, D. L. Abernathy, Yu Song, Scott V. Carr, Xingye Lu, Shililang Li, Zahra Yamani, Jiangping Hu, and Tao Xiang), Phys. Rev. B. (2012)

We use inelastic neutron scattering to show that superconducting (SC) rubidium iron selenide Rb0.82Fe1.68Se2 exhibits...

 

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Magnetic form factor of SrFe2As2: Neutron diffraction measurements (with W. Ratcliff II, P. A. Kienzie, Jeffrey W. Lynn, Shilliang Li, G. F. Chen, and N. L. Wang), Phys. Rev. B. (2010)

Neutron diffraction measurements have been carried out to investigate the magnetic form factor of the...

 

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Magnetic Quantum Oscillations in YBa2Cu3O6.61 and YBa2Cu3O6.69 in Fields of Up to 85 T: Patching the Hole in the Roof of the Superconducting Dome (with John Singleton, Clarina de la Cruz, R. D. McDonald, Shiliang Li, Moaz Altarawneh, Paul Goddard, Isabel Franke, Dwight Rickel, C. H. Mielke, and Xin Yao), Phys. Rev. Lett. (2010)

We measure magnetic quantum oscillations in the underdoped cuprates YBa2Cu3O6+x with x=0.61, 0.69, using fields...