Crystal Structure and Physical Properties of Multiferroic TmMnO$_{3}$ single crystals

We present here single crystal diffraction and local structure results of hexagonal and orthorhombic TmMnO$_{3}$ single crystals. Combined with specific heat and electric polarization properties across the N\'{e}el temperature, we further explore the close correlation between ferroelectric behavior at low temperature and local and long range structure change in these two different crystal structures. This work is supported by DOE Grants DE-FG02-07ER46402 (NJIT).