Dan Parshall, Ph.D.

AI Papers

• D. Parshall,
  "Navigator Identity as a Mechanism for AI Corrigibility: Core Architecture"
  Working Paper, February 2026 pdf.

Writing & Media

• "What If AI Alignment Is a Skill, Not a State?"
  Blog post summarizing the Navigator BCAI core paper, February 2026 pdf.

• "Building a Better IT Stack with AI Founded on High-quality, Well-structured Data"
  IT Business Net, June 2024 link.

• "Ensuring Responsible AI for IT: A Conversation with Microsoft"
  Lakeside Software blog (podcast with Microsoft Director Azure Data & AI Jim Brennan) link.

• "My Career in Data" Season 2, Episode 26
  Dataversity podcast link.

Physics Publications

First-author papers:

• D. Parshall, L. Pintschovius, J. L. Niedziela, J.-P. Castellan, D. Lamago, R. Mittal, Th. Wolf, D. Reznik,
  "Close correlation between magnetic properties and the soft phonon mode of the structural transition in BaFe₂As₂ and SrFe₂As₂"
  Physical Review B 91, 134426 (2015) doi pdf.

• D. Parshall, R. Heid, J. L. Niedziela, Th. Wolf, M. B. Stone, D. L. Abernathy, D. Reznik,
  "Phonon spectrum of SrFe₂As₂ determined using multizone phonon refinement"
  Physical Review B 89, 064310 (2014) doi pdf.

• D. Parshall, G. Chen, L. Pintschovius, D. Lamago, Th. Wolf, L. Radzihovsky, D. Reznik,
  "Competition between commensurate and incommensurate magnetic ordering in Fe_1+yTe"
  Physical Review B 85, 140515(R) (2012) doi pdf.

• D. Parshall, K. A. Lokshin, J. Niedziela, A. D. Christianson, M. D. Lumsden, H. A. Mook, S. E. Nagler, M. A. McGuire, M. B. Stone, D. L. Abernathy, A. S. Sefat, B. C. Sales, D. G. Mandrus, T. Egami,
  "Spin Excitations in BaFe_1.84Co_0.16As₂ Superconductor Observed by Inelastic Neutron Scattering"
  Physical Review B 80, 012502 (2009) doi pdf.

Co-authored papers:

• S. Roy, T. C. Sterling, D. Parshall, E. Toberer, M. Christensen, D. T. Adroja, D. Reznik,
  "Occupational disorder as the origin of flattening of the acoustic phonon branches in the clathrate Ba₈Ga₁₆Ge₃₀"
  Physical Review B 107, L020301 (2023) doi pdf.

• J. L. Niedziela, D. Bansal, J. Ding, T. Lanigan-Atkins, C. Li, A. F. May, H. Wang, J. Y. Y. Lin, D. L. Abernathy, G. Ehlers, A. Huq, D. Parshall, J. W. Lynn, O. Delaire,
  "Controlling phonon lifetimes via sublattice disordering in AgBiSe₂"
  Physical Review Materials 4, 105402 (2020) doi pdf.

• P. M. Gehring, Z. Xu, C. Stock, G. Xu, D. E. Parshall, L. Harriger, C. A. Gehring, X. Li, H. Luo,
  "Comment on 'Giant electromechanical coupling of relaxor ferroelectrics controlled by polar nanoregion vibrations'"
  Science Advances 5, eaar5066 (2019) doi pdf.

• A. Gold-Parker, P. M. Gehring, J. M. Skelton, I. C. Smith, D. Parshall, J. M. Frost, H. I. Karunadasa, A. Walsh, M. F. Toney,
  "Acoustic phonon lifetimes limit thermal transport in methylammonium lead iodide"
  Proceedings of the National Academy of Sciences 115(47), 11905-11910 (2018) doi pdf.

• F. Weber, D. Parshall, L. Pintschovius, J.-P. Castellan, M. Kauth, M. Merz, Th. Wolf, M. Schutt, J. Schmalian, R. M. Fernandes, D. Reznik,
  "Soft phonons reveal the nematic correlation length in Ba(Fe_0.94Co_0.06)₂As₂"
  Physical Review B 98, 014516 (2018) doi pdf.

• P. M. Gehring, D. Parshall, L. Harriger, C. Stock, G. Xu, X. Li, H. Luo,
  "Phantom phonon localization in relaxors"
  Nature Communications 8, 1935 (2017) doi pdf.

• J. S. Helton, S. K. Jones, D. Parshall, M. B. Stone, D. A. Shulyatev, J. W. Lynn,
  "Spin wave damping arising from phase coexistence below T_c in colossal magnetoresistive La_0.7Ca_0.3MnO₃"
  Physical Review B 96, 104417 (2017) doi pdf.

• M. E. Manley, D. L. Abernathy, R. Sahul, D. E. Parshall, J. W. Lynn, A. D. Christianson, P. J. Stonaha, E. D. Specht, J. D. Budai,
  "Giant electromechanical coupling of relaxor ferroelectrics controlled by polar nanoregion vibrations"
  Science Advances 2, e1501814 (2016) doi pdf.

• D. Reznik, D. Parshall, S. R. Park, J. W. Lynn, Th. Wolf,
  "Absence of magnetic field dependence of the anomalous bond-stretching phonon in YBa₂Cu₃O_6.6"
  Journal of Superconductivity and Novel Magnetism 29, 643-644 (2016) doi.

• J. A. Sears, M. Songvilay, K. W. Plumb, J. P. Clancy, Y. Qiu, Y. Zhao, D. Parshall, Y.-J. Kim,
  "Magnetic order in α-RuCl₃: A honeycomb-lattice quantum magnet with strong spin-orbit coupling"
  Physical Review B 91, 144420 (2015) doi pdf.

• X. Chen, T. Hogan, D. Walkup, W. Zhou, M. Pokharel, M. Yao, W. Tian, T. Z. Ward, Y. Zhao, D. Parshall, C. Opeil, J. W. Lynn, V. Madhavan, S. D. Wilson,
  "Influence of electron doping on the ground state of (Sr_1-xLa_x)₂IrO₄"
  Physical Review B 92, 075125 (2015) doi pdf.

• L. Pintschovius, D. Reznik, F. Weber, P. Bourges, D. Parshall, R. Mittal, S. L. Chaplot, R. Heid, T. Wolf, D. Lamago, J. W. Lynn,
  "Spurious peaks arising from multiple scattering events involving the sample environment in inelastic neutron scattering"
  Journal of Applied Crystallography 47, 1472-1476 (2014) doi pdf.

• S. Anissimova, D. Parshall, G. D. Gu, K. Marty, M. D. Lumsden, Songxue Chi, J. A. Fernandez-Baca, D. L. Abernathy, D. Lamago, J. M. Tranquada, D. Reznik,
  "Direct observation of dynamic charge stripes in La_2-xSr_xNiO₄"
  Nature Communications 5, 3467 (2014) doi pdf.

• J. L. Niedziela, D. Parshall, K. A. Lokshin, A. S. Sefat, A. Alatas, T. Egami,
  "Phonon softening near the structural transition in BaFe₂As₂ observed by inelastic x-ray scattering"
  Physical Review B 84, 224305 (2011) doi pdf.

• T. Egami, B. V. Fine, D. Parshall, A. Subedi, D. J. Singh,
  "Spin-Lattice Coupling and Superconductivity in Fe Pnictides"
  Advances in Condensed Matter Physics 2010, 164916 (2010) doi pdf.

• T. Egami, B. V. Fine, D. J. Singh, D. Parshall, C. de la Cruz, P. Dai,
  "Spin-Phonon Coupling in Iron Pnictide Superconductors"
  Physica C 469, 2009 doi pdf.

• D. Reznik, K. Lokshin, D. C. Mitchell, D. Parshall, W. Dmowski, D. Lamago, R. Heid, K.-P. Bohnen, A. S. Sefat, M. A. McGuire, B. C. Sales, D. G. Mandrus, A. Subedi, D. J. Singh, A. Alatas, M. H. Upton, A. H. Said, A. Cunsolo, Yu. Shvydko, T. Egami,
  "Phonons in doped and undoped BaFe₂As₂ investigated by inelastic x-ray scattering"
  Physical Review B 80, 214534 (2009) doi pdf.

• M. D. Lumsden, A. D. Christianson, D. Parshall, M. B. Stone, S. E. Nagler, G. J. MacDougall, H. A. Mook, K. Lokshin, T. Egami, D. L. Abernathy, E. A. Goremychkin, R. Osborn, M. A. McGuire, A. S. Sefat, R. Jin, B. C. Sales, D. Mandrus,
  "Two-dimensional resonant magnetic excitation in BaFe_1.84Co_0.16As₂"
  Physical Review Letters 102, 107005 (2009) doi pdf.