Merad, MahmoudFalek, MokhtarMoumni, ‪Mustapha2022-04-282022-04-282015http://hdl.handle.net/123456789/13046We present an exact solution of the one-dimensional modified Klein Gordon and Duffin Kemmer Petiau (for spins 0 and 1) equations with a step potential in the presence of minimal length in the uncertainty relation, where the expressions of the new transmission and reflection coefficients are determined for all cases. As an application, the Klein paradox in the presence of minimal length is discussed for all equations.enKlein ParadoxKlein GordonDuffin KemmerPetiau equationsMinimal lengthArticle