Gen Long

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Associate Professor
Physics
St. John's College of Liberal Arts and Sciences
Ph.D. in Physics, University at BuffaloB.S. in Physics, Shandong University

Research Interests

  • Novel nanomaterial synthesis and characterizations
  • Functional nanostructures
  • Energy-related nanoscale device applications
  • Magnetic nanomaterials and applications

Professional Activities

Dr. Long is a member of American Physical Society, American Association of Physics Teachers, and Materials Research Society.

Dr. Long serves as reviewer for many prestigious peer-reviewed journals such as Nanoscale, MRS Communications, RSC Advances, Nanotechnology, J. Phys.: Condens. Matter, J. Phys. D: Appl. Phys, Surface Review and Letters, etc.

  • Noreddine aghoutane, Mohamed El-YADRI,  El Aouami, Elmustapha Feddi*, G. Long*, Mostafa Sadoqi, Francis Dujardin, Chuong Nguyen, Ngoc Hieu Nguyen, and Huỳnh Vĩnh Phúc.  Excitonic nonlinear optical properties in AlN/GaN spherical core/shell quantum dot under pressure, MRS Communications, published online, (https://doi.org/10.1557/mrc.2019.43), 2019.

 

  • G. Long*, David Matatov, Acher Suissa, Elmustapha Feddi, M. EL Yadri, Kawtar Feddi and M. Sadoqi, Hydrothermal Synthesis and Characterization of Mn-Doped VO2 Nanowires, MRS Advances, published online, (https://doi.org/10.1557/adv.2019.60), (2019).

 

  • S. Mzerd, M. El-Haouari, N. Aghoutane, M. El-Yadri, E. Feddi, F. DUJARDIN, I. Zorkani, A. JORIO, M. Sadoqi, And G. Long*, Electric field effect on the photoionization cross-section of a single dopant in a strained AlAs/GaAs spherical core/shell quantum dot, Journal of Applied Physics, 124, 164303, (2018).

 

  • S. Mzerd, M. El-Haouari, N. Aghoutane, M. El-Yadri, E. Feddi, F. DUJARDIN, I. Zorkani, A. JORIO, M. Sadoqi, And G. Long, Electric field effect on the photoionization cross-section of a single dopant in a strained AlAs/GaAs spherical core/shell quantum dot, Journal of Applied Physics, accepted, Oct (2018).

 

  • N. Aghoutane, M. El-Yadri, E. Feddi, F. Dujardin, M. Sadoqi and G. Long, Pressure effect on an Exciton in a Wurtzite AlN/GaN/AlN Spherical Core/Shell Quantum Dot, MRS Communications, 8, 2, 527-532, (2018).

 

  • A. Oukerroum, M. El-Yadri, A. El Aouami, and E. Feddi, F. Dujardin, C. A. Duque, M. Sadoqi and G. Long, Oscillator strength and quantum-confined stark effect of excitons in a thin PbS quantum disk, International Journal of Modern Physics B, Vol. 32, 1750266, (2018).

 

  • G. Long, K. Sabalo, R. Alsaidi, M. Beattie, B. Chaudhry, M. Khan, J. Uddin, and M. Sadoqi, A Study of PbS Nanoparticle Synthesis via Sulfur Powder, AIMS Materials Science, 4(2): 515-521, (2017).

 

  • G. Long, L. Ching, M. Sadoqi and H. Xu, Gold Nanoparticles Enhanced Photocurrent in Nanostructure Based Bulk Heterojunction Solar Cell. Applied Physics A, 122(4), 1-5, (2016).

 

  • D. Li, S. J. Li, Y. T. Zhou, Y. Bai, Y. L. Zhu, W. J. Ren, G. Long, H. Zeng and Z. D. Zhang, Magnetization reversal and coercivity of Fe3Se4 nanowire arrays. Journal of Applied Physics, 117, 17E702 (2015).

 

  • J. Hatch, L. Whittaker, T. Wu, G. Long, H. Zeng, S. Ganapathy, S. Banerjee and H. Luo. Intermediate metallic phase in VO2 observed with scanning tunneling spectroscopy. Physical Chemistry Chemical Physics, 16, 14183-14188 (2014).

 

  • G. Long, M. DeMarco, D. Coffey, M. K. Toth and M. S. Torikachvili. Phase transitions in Sr2YRuO6 investigated by Mössbauer spectroscopy, magnetization, and thermodynamic measurements. Physical Review B 87 (2), 024416 (2013).

 

  • G. Long, B. Barman, S. Delikanli, Y.T. Tsai, P. Zhang, A. Petrou, and H. Zeng. Carrier-Dopant Exchange Interactions in Mn-doped PbS Colloidal Quantum Dots. Applied Physics Letters. 101(6), 062410-062413(2012).

 

  • G. Long, H. Zhang, D. Li, R. Sabirianov, Z. Zhang and H. Zeng. Magnetic anisotropy and coercivity of Fe3Se4 nanostructures. Applied Physics Letters 99 (20), 202103-202103 (2011).

 

  • G. Long, M. DeMarco, M. Chudyk, J. Steiner, D. Coffey, H. Zeng, Y. K. Li, G. H. Cao and Z. A. Xu. Coexistence of magnetic fluctuations and superconductivity in SmFe0.95Co0.05AsO seen in 57Fe Mössbauer spectroscopy. Physical Review B 84 (6), 064423 (2011).

 

  • H. Zhang, G. Long, D. Li, R. Sabirianov and H. Zeng. Fe3Se4 Nanostructures with Giant Coercivity Synthesized by Solution Chemistry. Chemistry of Materials 23(16), 3769-3774 (2011).

 

  • X. Hui, G. Long, G. Hanjie, Z. Youming, F. Chunmu, C. Guanghan, Z. Hao and X. Zhu-An. Anisotropic paramagnetism of monoclinic Nd2Ti2O7 single crystals. Journal of Physics: Condensed Matter 23(21), 216005 (2011).