1. Recent Advances in Atomic-Scale Spin-Polarized Scanning Tunneling Microscopy, Arthur R. Smith ,  Rong Yang, Haiqiang Yang, Alexey Dick, Joerg Neugebauer, Walter R. L. Lambrecht, Microscopy Res. & Tech. 66(2-3), 72 (2005).

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2. Aspects of Spin-Polarized Scanning Tunneling Microscopy at the Atomic Scale: Experiment, Theory, and Simulation, Arthur R. Smith, Rong Yang, Haiqiang Yang, and Walter R. L. Lambrecht, Surface Science 561(2-3), 154 (2004).

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3. Bias-Voltage Dependence in Atomic-Scale Spin Polarized Scanning Tunneling Microscopy of Mn3N2 (010), Arthur R. Smith, Rong Yang, and Haiqiang Yang, Mat. Res. Soc. Symp. Proc. 803, GG1.2 (2004).

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4. Atomic-Scale Spin-Polarized Scanning Tunneling Microscopy Applied To Mn3N2 (010), Haiqiang Yang, Arthur R. Smith, Margarita Prikhodko, and Walter R. L. Lambrecht, Phys. Rev. Lett. 89, 226101 (2002).

GaN, ScN, and ScGaN

1. Scanning Tunneling Microscopy and Surface Simulation of Zinc-Blende GaN(001) Intrinsic 4x Reconstruction: Linear Gallium Tetramers?, Hamad A. AL-Brithen, Rong Yang, Muhammad B. Haider, Costel Constantin, Erdong Lu, Arthur R. Smith, Nancy Sandler, and Pablo Ordejon, Physical Review Letters 95, 146102 (2005).

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2. ScGaN Alloy Growth by Molecular Beam Epitaxy: Evidence for a Metastable Layered Hexagonal Phase, Costel Constantin, Hamad Al-Brithen, Muhammad B. Haider, David Ingram, and Arthur R. Smith, Physical Review B 70, 193309 (2004).

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3. Surface and Bulk Electronic Structure of ScN(001) Investigated by Scanning Tunneling Microscopy/Spectroscopy and Optical Absorption Spectroscopy, Hamad A. Al-Brithen, Arthur R. Smith, and Daniel Gall, Physical Review B 70(4), 045303 (2004).

Magnetic-doped nitride semiconductors

1. Room Temperature Ferromagnetism in CrGaN: Dependence on Growth Conditions in rf N-Plasma Molecular Beam Epitaxy, Muhammad B. Haider, Rong Yang, Hamad Al-Brithen, Costel Constantin, David Ingram, Arthur R. Smith, Gabriel Caruntu, and Charles J. O'Connor, J. Crystal Growth 285(3), 300 (2005).

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2. Dependence of Magnetic Properties on  the Growth Conditions of MnGaN Grown by rf N-plasma Molecular Beam Epitaxy, Muhammad B. Haider, Costel Constantin, Hamad Al-Brithen, Gabriel Caruntu, Charles J. O'Conner, and Arthur R. Smith, Physica Status Solidi (a) 202:6, 1135 (2005).

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3. Incorporation of Manganese into Semiconducting ScN Using Radio Frequency Molecular Beam Epitaxy, Hamad A. AL-Brithen, Haiqiang Yang, and Arthur R. Smith, J. Appl. Phys. 96(7), 3787 (2004).

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4. Mixing Rocksalt and Wurtzite Structure Binary Nitrides to Form Novel Ternary Alloys: ScGaN and MnGaN, Costel Constantin, Hamad Al-Brithen, Muhammad B. Haider, David Ingram, and Arthur R. Smith, Mat. Res. Soc. Symp. Proc. 799, Z9.5 (2004).

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5. Ga/N Flux Ratio Influence on Mn Incorporation, Surface Morphology, and Lattice Polarity During Radio Frequency Molecular Beam Epitaxy of (Ga,Mn)N, Muhammad B. Haider, Costel Constantin, Hamad Al-Brithen, Haiqiang Yang, Eugen Trifan, David Ingram, Arthur R. Smith, C. V. Kelly and Y. Ijiri, Journal of Applied Physics 93(9), 5274 (2003).

Magnetic nitride surfaces

1. Scanning Tunneling Microscopy Study of the Structural Phase Transformation in Manganese Nitride: theta-MnN --> eta-Mn3N2, Rong Yang, Muhammad B. Haider, Haiqiang Yang, Hamad Al-Brithen, and Arthur R. Smith, Appl. Phys. A - Mat. Sci. & Process. 81(4), 695 (2005).

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2. Metal/Semiconductor Phase Transition in Chromium Nitride(001) Grown by rf-Plasma-Assisted Molecular Beam Epitaxy, Costel Constantin, Muhammad B. Haider, David Ingram, and Arthur R. Smith, Applied Physics Letters 85(26), 6371 (2004).

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3. Atomic-Scale Structure of h-phase Mn3N2 (010) Studied by in-Situ Scanning Tunneling Microscopy and First-Principles Theory, Haiqiang Yang, Rong Yang, Arthur R. Smith, and Walter R. L. Lambrecht, Surface Science 548, 117 (2003).

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4. Crystalline Phase and Orientation Control of Manganese Nitride Grown on MgO(001) by Molecular Beam Epitaxy, Haiqiang Yang, Hamad Al-Brithen, Arthur R. Smith, Eugen Trifan, and David C. Ingram, J. Appl. Phys. 91(3), 1053 (2002).

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5. Structural and Magnetic Properties of h- phase Manganese Nitride Films Grown by Molecular Beam Epitaxy, Haiqiang Yang, Hamad Al-Brithen, Arthur R. Smith, J.A. Borchers, R.L. Cappelletti, and M.D. Vaudin, Appl. Phys. Lett. 78, 3860 (2001).