Title Magnetically controlled bidirectional 2×2 elastic switch using Terfenol-D in a phononic crystal-based Mach-Zehnder interferometer Type Article Keywords Keywords: Elastic switch Magnetic field Phononic crystal Mach–Zehnder interferometer Abstract Keywords: Elastic switch Magnetic field Phononic crystal Mach–Zehnder interferometer Researchers Sadjad Ranjbar (First researcher) , fakhroddin nazari (Second researcher) , Rasool Hajizadeh (Third researcher)