32. P. Khalifah, I. Ohkubo, B. C. Sales, H. M. Christen, D. Mandrus, and J. Cerne, “Composition dependence of the anomalous Hall effect in Ca_xSr_1-xRuO₃ films”, Phys. Rev. B, 76, 054404 (2007).

31. M. H. Kim, G. Acbas, M. H. Yang, I. Ohkubo, H. Christen, D. Mandrus, M. A. Scarpulla, O. D. Dubon, Z. Schlesinger, P. Khalifah, and J. Cerne, “Determination of the infrared magnetoconductivity tensor in itinerant ferromagnets from Faraday and Kerr measurements”, Phys. Rev. B, 75, 214416 (2007).

30. M. E. Germain, T. R. Vargo, P. G. Khalifah, and M. J. Knapp, “Fluorescent detection of nitroaromatics and 2,3-dimethyl 2,3-dinitrobutane (DMNB) by a zinc complex: (salophen)Zn”, Inorg. Chem., 46, 4422-9 (2007).

29. R. Heary, D. Coffey, M. DeMarco, P. Khalifah, S. Toorongian, and M. Haka, “Orbital ordering transition in La₄Ru₂O₁₀ probed by Mossbauer spectroscopy”, Physica B – Cond. Matt., 393, 78-82 (2007).

28. H. Wu, Z. Hu, T. Burns, J. D. Denlinger, P. G. Khalifah, D. G. Mandrus, L. Y. Jang, H. H. Hsieh, A. Tanaka, K. S. Liang, J. W. Allen, R. J. Cava, D. I. Khomskii, and L. H. Tjeng, “Orbitally-driven spin-singlet dimerization in S=1 La₄Ru₂O₁₀”, Phys. Rev. Lett., 96, 256402 (2006).

27. B. C. Sales, R. Jin, D. Mandrus, and P. Khalifah, “Anomalous Hall effect in three ferromagnetic semiconductors: EuFe₄Sb₁₂, Yb₁₄MnSb₁₁, and Eu₈Ga₁₆Ge₃₀”, Phys. Rev. B, 73, 224435 (2006).

26. R. Jin, H. Sha, P. G. Khalifah, R. E. Sykora, B. C. Sales, D. Mandrus, J. D. Zhang, “Ba₂CoO₄: crystal growth, structural refinement, and physical properties”, Phys. Rev. B, 73, 174404 (2006).

25. D. J. Singh, R. C. Rai, J. L. Musfeldt, S. Auluck, N. Singh, P. Khalifah, S. McClure, D. G. Mandrus, “Optical properties and electronic structure of spinel ZnRh₂O₄”, Chem. Materials, 18, 2696-2700 (2005)

24. B. C. Sales, P. Khalifah, T. P. Enck, E. J. Nagler, R. E. Sykora, R. Jin, D. Mandrus, “Kondo lattice behavior in the dilute ferromagnetic semiconductor Yb_14-xLa_xMnSb₁₁”, Phys. Rev. B, 72, 205207 (2005).

23. B.C. Sales, R. Jin, K.A. Affholter, P. Khalifah, G.M. Veith, and D. Mandrus, “Magnetic, thermodynamic, and transport characterization of Na_0.75CoO₂ single crystals”, Phys. Rev. B, 70, 174419 (2004).

22. P. Khalifah, I. Ohkubo, H. Christen and D. Mandrus, “Evolution of transport and magnetic properties near the ferromagnetic quantum critical point in the series Ca_xSr_1-xRuO₃”, Phys. Rev. B, 70, 134426 (2004).

21. W. Tian, M.F. Chisholm, P.G. Khalifah, R. Jin, B.C. Sales, S.E. Nagler, and D. Mandrus. “Single crystal growth and characterization of nearly-stoichiometric LiVO₂”, Mat. Res. Bull., 39, 1319-28 (2004).

20. T.W. Heitmann, S.D. Bu, D.M. Kim, J.H. Choi, J. Giencke, C.B. Eom, K.A. Regan, N. Rogado, M.A. Hayward, T. He, J.S. Slusky, P. Khalifah, M. Haas, R.J. Cava, D.C. Larbalestier, and M.S. Rzchowski. “MgB₂ energy gap determination by scanning tunneling spectroscopy”, Supercond. Sci. Tech., 17, 237-242 (2004).

19. I. Okhubo, H.M. Christen, P. Khalifah, S. Sathyamurthy, H.Y. Zhai, C. M. Rouleau, D. G. Mandrus, and D.H. Lowndes. “Continuous composition-spread thin films of transition metal oxides by pulsed-laser deposition”, Appl. Surf. Sci., 223, 35-8 (2004).

18. R. Jin, B. Sales, P. Khalifah, and D. Mandrus. “Observation of bulk superconductivity in Na_xCoO₂ • yH₂O and Na_xCoO₂ • yD₂O powder and single crystals”, Phys. Rev. Lett., 91, 217001-4 (2003).

17. P. Khalifah, Q. Huang, J. W. Lynn, R. W. Erwin and R. Cava. “Magnetic Behavior of La₇Ru₃O₁₈”, Journal of Physics: Condensed Matter, 15, 5747-5753 (2003).

16. P. Khalifah, R. Osborn, Q. Huang, H. W. Zandbergen, R. Jin, Y. Liu, D. Mandrus, and R. J. Cava. “Orbital ordering transition in La₄Ru₂O₁₀”, Science, 297, 2237-40 (2002).

15. P. Khalifah, D. M. Ho, Q. Huang, and R. J. Cava. “The structure and properties of βLa₃RuO₇: A new structure type with isolated RuO₆ octahedra”, Journal of Solid State Chemistry, 165, 359-362 (2002).

14. P. Khalifah and R. J. Cava. “Metal-metal bonding in the KSbO₃-type oxides La₄Ru₆O₁₉ and La₃Ru₃O₁₁: A mechanism for band gap formation in t_2g states”, Physical Review B, 64, 085111 (2001).

13. T. Yildrim, O. Gulseren, J. W. Lynn, C. M. Brown, T. J. Udovic, Q. Huang, N. Rogado, K. A. Regan, M. A. Hayward, J. S. Slusky, M. K. Haas, P. Khalifah, K. Inumaru, and R. J. Cava. “Giant anharmonicity and nonlinear electron-phonon coupling in MgB₂: A combined first-principles calculation and neutron scattering study”, Physical Review Letters, 87, 037001 (2001).

12. P. Khalifah, K. D. Nelson, R. Jin, Z. Q. Mao, Y. Liu, Q. Huang, X. P. A. Gao, A. P. Ramirez, and R. J. Cava. “Non-Fermi-liquid behavior in La₄Ru₆O₁₉”, Nature, 411, 669-71 (2001).

11. J. S. Slusky, N. Rogado, K. A. Regan, M. A. Hayward, P. Khalifah, T. He, K. Inumaru, S. M. Loureiro, M. K. Haas, H. W. Zandbergen, and R. J. Cava. “Loss of superconductivity with the addition of Al to MgB₂ and a structural transition in Mg_1-xAl_xB₂”, Nature, 410, 343-5 (2001).

10. D. C. Larbalestier, L. D. Cooley, M. O. Rikel, A. A. Polyanksi, J. Jiang, S. Patnaik, X. Y. Cai, D. M. Feldmann, A. Gurevich, A. A. Squiteri, M. T. Naus, C. B. Eom, E. E. Hellstrom, R. J. Cava, K. A. Regan, N. Rogado, M. A. Hayward, T. He, J. S. Slusky, P. Khalifah, K. Inumaru, and M. Haas. “Strongly linked current flow in polycrystalline forms of the superconductor MgB₂”, Nature, 410, 186-9 (2001).

9. P. Khalifah, Q. Huang, D. M. Ho, H. W. Zandbergen, and R. J. Cava. “La₇Ru₃O₁₈ and La_4.87Ru₂O₁₂: Geometric frustration in two closely related structures with isolated RuO₆ octahedra”, Journal of Solid State Chemistry, 155, 189-97 (2000).

8. D. P. Young, C. L. Brown, P. Khalifah, R. J. Cava, and A. P. Ramirez. “Thermoelectric properties of Ag₃AuTe₂”, Journal of Applied Physics, 88, 5221-4 (2000).

7. I. S. Hagemann, P. Khalifah, A. Ramirez, and R. J. Cava. “Geometric magnetic frustration in olivines”, Physical Review B, 62, R771-4 (2000).

6. P. Khalifah, Q. Huang, J. W. Lynn, R. W. Erwin and R. Cava. “Synthesis and Crystal Structure of La₃RuO₇”, Materials Research Bulletin, 35, 1-7 (2000).

5. D. P. Young, P. Khalifah, A. P. Ramirez and R. J. Cava. “Thermoelectric properties of pure and doped FeMSb (M=V,Nb)”, Journal of Applied Physics, 87, 317-321 (2000).

4. P. Khalifah, R. W. Erwin, J. W. Lynn, Q. Huang, B. Batlogg and R. J. Cava, “Magnetic and electronic characterization of quasi-one-dimensional La₃RuO₇”, Physical Review B, 60, 9573–9578 (1999).

3. D. P. Young, P. Khalifah, A. P. Ramirez and R. J. Cava. “Ln₃Au₃Sb₄: Thermoelectrics with low thermal conductivity”, Applied Physics Letters, 74, 3999-4001 (1999).

2. K. Mastronardi, D. Young, C.-C. Wang, P. Khalifah, R. J. Cava and A. P. Ramirez. “Antimonides with the half-Heusler structure: New thermoelectric materials”, Applied Physics Letters, 74, 1415 (1999).

1. R. Grandori, P. Khalifah, J. A. Boice, R. Fairman, K. Giovanielli and J. Carey. “Biochemical characterization of WrbA, founding member of a new family of multimeric flavodoxin-like proteins”, Journal of Biological Chemistry, 273, 20960-20966 (1998).