- Claude Bernard -

“The joy of discovery is certainly the liveliest that the mind of man can ever feel”

SELECTED PUBLICATIONS

  1. C. E. Ekuma, "Optical absorption in monolayer SnO2" Phys. Rev. B 99, 075421 (2019). doi:  10.1103/PhysRevB.99.075421

  2. C. E. Ekuma, "Fingerprints of native defects in monolayer PbTe" Nanoscale Advances, 1, 513 (2019). doi:  10.1039/C8NA00125A 

  3. C. E. Ekuma, "Observation of Novel Multifunctionalities in Monolayer CdO " Advanced Theory and Simulations, 1800107 (2018). doi: 10.1002/adts.201800107

  4. C. E. Ekuma and D. Gunlycke, "Optical absorption in monolayer molybdenum disulfide" Phys. Rev. B 97, 201414(R)  (2018). doi10.1103/PhysRevB.97.201414 

  5. C. E. Ekuma, "Effects of vacancy defects on the electronic and optical properties of monolayer PbSe", J. Phys. Chem. Lett.  9(13) 3680 (2018). doi: 10.1021/acs.jpclett.8b01585

  6. C. E. Ekuma, "Two-particle excitations under coexisting electron interaction and disorder", Phys. Rev. B. 98, 085129 (2018). doi: 10.1103/PhysRevB.98.085129

  7.  C. E. Ekuma, V. Dobrosavljevic, and D. Gunlycke, "First-principles-based method for electron localization: Application to monolayer hexagonal boron nitride", Phys. Rev. Lett. 118, 106404 (2017). doi: 10.1103/PhysRevLett.118.106404

  8. N.Q. Lee, C. E. Ekuma, B. Dunlap, and D. Gunlycke., "First-principles calculations of sarin adsorption on anatase surface", J. Phys. Chem. C, 122, 2832 (2018). doi10.1021/acs.jpcc.7b11509 

  9. C. E. Ekuma et al.  "Electronic structure and X-ray spectroscopy of Cu2MnAl1-xGax", Journal of Applied Physics, 123,  161509 (2018). doi10.1063/1.4996650 

  10. C.E. Ekuma et al. "Electronic, optical, and thermoelectric properties of Fe2+xV1−xAl", AIP Advances 7, 045118 (2017). doi10.1063/1.4982671

  11. C. E. Ekuma, S.-X. Yang, H. Terletska, K.-M. Tam, N. S. Vidhyadhiraja, J. Moreno, and M. Jarrell, "Metal-Insulator-Transition in a Weakly interacting Disordered Electron System", Phys. Rev. B 92, 201114(R) 2015. doi: 10.1103/PhysRevB.92.201114

  12. Y. Zhang, H. Terletska, C. Moore, C. E. Ekuma, K.-M. Tam, T. Berlijn, W. Ku, J. Moreno, M. Jarrell, "Study of multiband disordered systems using the typical medium dynamical cluster approximation", Phys. Rev. B 92, 205111 (2015). doi: 10.1103/PhysRevB.92.205111 

  13. C. E. Ekuma, H. Terletska, C. Moore, K.-M. Tam, N. S. Vidhyadhiraja, J. Moreno, and M. Jarrell, "Finite Cluster Typical Medium Theory for Disordered Electronic Systems", Phys. Rev. B  92, 014209 (2015). doi10.1103/PhysRevB.92.014209

  14. J. H. Mendez, C. E. Ekuma, Y. Wu, B. W. Fulfer,  J. C. Prestigiacomo, W. A. Shelton, M. Jarrell, J. Moreno, D. P. Young, P. W. Adams,  A. Karki, R. Jin, Julia Y. Chan, J. F. DiTusa, "Competing magnetic states, disorder, and the magnetic character of Fe3Ga4", Phys. Rev. B 91, 144409 (2015). doi: 10.1103/PhysRevB.91.144409

  15. H Terletska, C. E. Ekuma, C. Moore, K. -M Tam, Z-Y Meng, J Moreno, M Jarrell, "Study of off-diagonal disorder using the typical medium dynamical cluster approximation", Phys. Rev. B 90, 094208 (2014). doi10.1103/PhysRevB.90.094208

  16. C. E. Ekuma, H Terletska, K-M Tam, Z-Y Meng, J Moreno, M Jarrell, "Typical medium dynamical cluster approximation for the study of Anderson localization in three dimensions", Phys. Rev. B 89, 081107(R) (2014). doi10.1103/PhysRevB.89.081107

  17. C. E. Ekuma, V. I. Anisimov, J. Moreno, and M. Jarrell, "Electronic Structure and Spectra of CuO", The European Physical Journal B 87, 23 (2014). doi: 10.1140/epjb/e2013-40949-5

  18. C. E. Ekuma, J. Moreno, and M. Jarrell, "Electronic, transport, optical, and structural properties of rocksalt CdO", J. Appl. Phys. 114, 153705 (2013). doi: 10.1063/1.4825312

  19. C. E. Ekuma, H. Terletska, Z.-Y. Meng, J. Moreno, M. Jarrell, S. Mahmoudian, and V. Dobrosavljevic, "Effective Cluster Typical Medium Theory for Diagonal Anderson Disorder Model in One-and Two-Dimensions", J. Phys.: Condens. Matter 26, 274209 (2014). doi: 10.1088/0953-8984/26/27/274209

  20. C. E. Ekuma, Chia-Hui Lin, J. Moreno, W. Ku, and M. Jarrell, "First-principles Wannier function analysis of the electronic structure of PdTe: weaker magnetism and superconductivity", J. Phys.: Condens. Matter 25 405601 (2013). doi: 10.1088/0953-8984/25/40/405601

  21. C. E. Ekuma, D. Bagayoko., Moreno, and M. Jarrell, "Re-examining the Electronic Structure of Ge: A First-Principle Study", Phys. Lett. A, 317 (34-37), 2172-2176 (2013). doi:10.1016/j.physleta.2013.05.043

  22. L. Franklin, C. E. Ekuma, G. L. Zhao, and D. Bagayoko, "Density functional theory description of electronic properties of wurtzite zinc oxide", Journal of Physics and Chemistry of Solids 74 (5), 729-736 (2013). doi: 10.1016/j.jpcs.2013.01.013

  23. J. Li, C. E. Ekuma, I. Vekhter, M. Jarrell, J. Moreno, S. Stadler, A. Karki, and R. Jin, "Physical Properties of Ba2Mn2Sb2O Single Crystals", Phys. Rev. B 86, 195142 (2012). doi: 10.1103/PhysRevB.86.195142

  24. C. E. Ekuma, J. Moreno, M. Jarrell, and D. Bagayoko, "Electronic, Structural, and Elastic Properties of Metal Nitrides XN (X = Sc, YN): A First-Principle Study", AIP Advances 2, 032163 (2012). doi: 10.1063/1.4751260

  25. C. E. Ekuma, M. Jarrell, J. Moreno, and D. Bagayoko, "First Principle Electronic, Structural, Elastic, and Optical Properties of Strontium Titanate", AIP Advances 2, 012189 (2012). doi: 10.1063/1.3700433

  26. C. E. Ekuma, David J. Singh, J. Moreno, and M. Jarrell, "Optical Properties of PbTe and PbSe", Phys. Rev. B 85, 085205 (2012). doi: 10.1103/PhysRevB.85.085205

  27. C. E. Ekuma and D. Bagayoko, "Ab-initio Electronic and Structural Properties of Rutile Titanium Dioxide", Jpn. J. Appl. Phys. 50, 101103 (2011). doi: 10.1143/JJAP.50.101103

  28. Y. Zhen, S. Hall, T. Brown, C. E. Ekuma, Z. Bell, Z. W. Sun, and J. T. Wang, "Synthesis and Characterization of (1-x)(Na_0.5Bi_0.5)TiO_3-xAl_6Bi_2O_12 Solid Solution", Ferroelectrics 413 (1), 192-205 (2011). doi: 10.1063/1.2967335

  29. C. E. Ekuma, L. Franklin, J. T. Wang, G. L. Zhao, and D. Bagayoko, "Local density approximation description of electronic properties of wurtzite cadmium sulfide (w-CdS)", Can. J. Phys. 89 (3), 319-324 (2011). doi: 10.1139/P11-023

  30. C. E. Ekuma, L. Franklin, J. T. Wang, G. L. Zhao, and D. Bagayoko, "Ab-initio local density approximation description of the electronic properties of zinc blende cadmium sul de (zb-CdS)", Physica B 406 (8), 1477 (2011). doi: 10.1016/j.physb.2011.01.051

 

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