1.W. Ma, A. Hao；Polarization rotation and piezoelectricity of electric field-induced monoclinic and triclinic structures in strained PbTiO3；Journal of Applied Physics 116, 214110 (2014). View online: http://dx.doi.org/10.1063/1.4903523；  

2.W. Ma, A. Hao；Electric field-induced polarization rotation and ultrahigh piezoelectricity in PbTiO3；Journal of Applied Physics 115, 104105 (2014). View online: http://dx.doi.org/10.1063/1.4868320；  

3.D. Zhu, W. Ma；Effect of mechanical stress on phase stability and polarization states in ferroelectric barium titanate and lead titanate；Ceramics International 40, 6647–6654 (2014). Published online Dec. 4, 2013. View online: http://dx.doi.org/10.1016/j.ceramint.2013.11.123；  

4.W. Ma；Surface layer clamping as origin for size-dependent downshift of Curie temperature in PbTiO3 nanoparticles；Physica B 420, 28–31 (2013). View online: http://dx.doi.org/10.1016/j.physb.2013.03.038；  

5.W. Ma；Size dependent transition enthalpy in PbTiO3 nanoparticles due to a cubic surface layer；Applied Physics A 111, 613–617 (2013). Published online Sept. 26, 2012. View online: http://dx.doi.org/10.1007/s00339-012-7274-y；  

6.H. Song, W. Ma；Hydrothermal synthesis of submicron NaNbO3 powders；Ceramics International 37, 877–882 (2011). View online: http://dx.doi.org/10.1016/j.ceramint.2010.11.011；  

7.G. Bai, W. Ma；Phenomenological analysis of phase transitions in epitaxial perovskite ferroelectric thin films；Physica B 405, 1901–1907 (2010). View online: http://dx.doi.org/10.1016/j.physb.2010.01.070；  

8.W. Ma；Flexoelectric charge separation and size dependent piezoelectricity in dielectric solids.；Physica Status Solidi (b) 247, 213–218 (2010). Published online Nov. 11, 2009. View online: http://dx.doi.org/10.1002/pssb.200945394；  

9.W. Ma；Surface tension and Curie temperature in ferroelectric nanowires and nanodots；Applied Physics A 96, 915–920 (2009). View online: http://dx.doi.org/10.1007/s00339-009-5246-7；  

10.W. Ma；Flexoelectric effect in ferroelectrics；Functional Materials Letters 1, 235–238 (2008). View online: http://dx.doi.org/10.1142/S179360470800037X；  

11.W. Ma；A study of flexoelectric coupling associated internal electric field and stress in thin film ferroelectrics；Physica Status Solidi (b) 245, 761-768 (2008). View online: http://dx.doi.org/10.1002/pssb.200743514；

12.W. Ma；Flexoelectricity: strain gradient effects in ferroelectrics；Physica Scripta T 129, 180-183 (2007). View online: http://dx.doi.org/10.1088/0031-8949/2007/T129/041；  

13.W. Ma, L. E. Cross；Flexoelectricity of barium titanate；Applied Physics Letters 88, 232902 (2006). View online: http://dx.doi.org/10.1063/1.2211309；  

14.W. Ma, L.E. Cross；Flexoelectric effect in ceramic lead zirconate titanate；Applied Physics Letters 86, 072905 (2005). View online: http://dx.doi.org/10.1063/1.1868078；  

15.W. Ma, D. Hesse, U. Goesele；Nanostructure patterns of piezoelectric and ferroelectric complex oxides with various shapes obtained by natural lithography and pulsed laser deposition；Nanotechnology 17, 2536-2541 (2006). View online: http://dx.doi.org/10.1088/0957-4484/17/10/016；  

16.W. Ma, D. Hesse, U. Goesele；Formation of ferroelectric perovskite nanostructure patterns using latex sphere monolayers as masks: An ambient gas pressure effect during pulsed laser deposition；Small 1, 837-841 (2005). View online: http://dx.doi.org/10.1002/smll.200500073；  

17.W. Ma, L.E. Cross；Tunable electric-field-induced piezoelectricity in high strain relaxor ferroelectric P(VDF-TrFE) copolymer.；Journal of Physics: Condensed Matter 17, 1011-1018 (2005). View online: http://dx.doi.org/10.1088/0953-8984/17/6/019；  

18.W. Ma, L.E. Cross；An experimental investigation of electromechanical response in a dielectric acrylic elastomer；Applied Physics A 78, 1201-1204 (2004). View online: http://dx.doi.org/10.1007/s00339-003-2197-2；  

19.W. Ma, D. Hesse；Microstructure and piezoelectric properties of sub-80 nm high polycrystalline SrBi2Ta2O9 nanostructures within well-ordered arrays；Applied Physics Letters 85, 3214-3216 (2004). View online: http://dx.doi.org/10.1063/1.1804603；  

20.W. Ma, D. Hesse；Polarization imprint in ordered arrays of epitaxial ferroelectric nanostructures；Applied Physics Letters 84, 2871-2873 (2004). View online: http://dx.doi.org/10.1063/1.1703835；  

21.W. Ma, C. Harnagea, D. Hesse, U. Goesele；Well-ordered arrays of pyramid-shaped ferroelectric BaTiO3 nanostructures；Applied Physics Letters 83, 3770-3772 (2003). View online: http://dx.doi.org/10.1063/1.1625106；  

22.W. Ma, L.E. Cross；Strain-gradient-induced electric polarization in lead zirconate titanate ceramics；Applied Physics Letters 82, 3293-3295 (2003). View online: http://dx.doi.org/10.1063/1.1570517；  

23.W. Ma, L.E. Cross；Flexoelectric polarization of barium strontium titanate in the paraelectric state；Applied Physics Letters 81, 3440-3442 (2002). View online: http://dx.doi.org/10.1063/1.1518559；  

24.W. Ma, L.E. Cross；Large flexoelectric polarization in ceramic lead magnesium niobate；Applied Physics Letters 79, 4420-4422 (2001). View online: http://dx.doi.org/10.1063/1.1426690；  

25.W. Ma, L.E. Cross；Observation of the flexoelectric effect in relaxor Pb(Mg1/3Nb2/3)O3 ceramics；Applied Physics Letters 78, 2920-2921 (2001). View online: http://dx.doi.org/10.1063/1.1356444；