Danny Phelan is a physicist in both the Emerging Materials and Neutron and X-ray Scattering groups. He received his B.S. and Ph.D., both in physics, from the University of Virginia in 2002 and 2008, respectively. Subsequently he was awarded an NRC postdoctoral fellowship at the NIST Center for Neutron Research and then worked as a postdoc in the Chemical Engineering and Materials Science Department at the University of Minnesota. He joined the Materials Science Division at Argonne in 2014.
Danny’s research combines crystal growth; characterization of magnetic, thermodynamic, electrical transport, and dielectric properties; and neutron and x-ray scattering experiments in an effort to understand the microscopic physics underlying material behavior. He runs the electrical transport and magnetization laboratory in the Emerging Materials Group and is a frequent user at neutron scattering facilities such as NCNR, HFIR, and SNS. He has worked on topics ranging from magnetism in transition metal oxides to relaxor ferroelectricity and superconductivity.
Selected Publications
“Acoustic phonon dispersion and diffuse scattering across the valence transition of (Pr0.85Y0.15)0.7Ca0.3CoO3-d”, D. Phelan, M. J. Krogstad, N. J. Schreiber, R. Osborn, A. H. Said, H. Zheng, and S. Rosenkranz, Physical Review B 100, 054101 (2019).
“Spin Stripe Order in a Square Planar Trilayer Nickelate”, J. Zhang, D. M. Pajerowski, A. S. Botana, H. Zheng, L Harriger, J. Rodriguez-Rivera, J. P. C. Ruff, N. J. Schreiber, B. Wang, Y.-S. Chen, W. C. Chen, M. R. Norman, S. Rosenkranz, J. F. Mitchell, and D. Phelan, Physical Review Letters 122, 247201 (2019).
“Electrical transport, magnetic, and thermodynamic properties of La-, Pr-, and Nd-doped BaSnO3-d single crystals”, E. McCalla, D. Phelan, M. J. Krogstad, B. Dabrowski, and C. Leighton, Physical Review Materials 2, 084601 (2018).
“The relation of local order to material properties in relaxor ferroelectrics”, M. J. Krogstad, P. M. Gehring, S. Rosenkranz, R. Osborn, F. Ye, Y. Liu, J. P. C. Ruff, W. Chen, J. M. Wozniak, H. Luo, O. Chmiassem, Z. -G. Ye, and D. Phelan, Nature Materials 17, 718 (2018).
“Antiferromagnetic defect structure in LaNiO3-d single crystals”, B. Wang, S. Rosenkranz, X. Rui, J. Zhang, F. Ye, H. Zheng, R. F. Klie, J. F. Mitchell, and D. Phelan, Physical Review Materials 2, 064404 (2018).
“Structural properties of barium stannate”, D. Phelan, F. Han, A. Lopez-Bezanilla, M. J. Krogstad, Y. Gim, Y. Rong, J. Zhang, D. Parshall, H. Zheng, S. L. Cooper, M. Feygenson, W. Yang, and Y.-S. Chen, J. Sol. State Chem. 262, 142 (2018).
“Large orbital polarization in a metallic square-planar nickelate”, J. Zhang, A. S. Botana, J.W. Freeland, D. Phelan, H. Zheng, V. Pardo, M.R. Norman, and J.F. Mitchell, Nature Physics 13, 864 (2017).
“Stacked charge stripes in the quasi-two-dimensional trilayer nickelate La4Ni3O8”, J. Zhang, Y.-S. Chen, D. Phelan, H. Zheng, M. R. Norman, and J. F. Mitchell, Proc. Natl. Acad. Sci. USA 113, 8945 (2016).
“Role of Random Electric Fields in Relaxors”, D. Phelan, C. Stock, J. A. Rodriguez-Rivera, S. Chi, J. B Leao, X. Long, Y. Xie, A. A. Bokov, Z.-G. Ye, P. Ganesh, and P. M. Gehring, Proc. Natl. Acad. Sci. USA 111, 1754 (2014).
