[21p-P16-1~15] 6.4 Thin films and New materials

[21p-P16-1] Fabrication of inverse perovskite Mn₃Cu_xSn_1-xN thin films and evaluation of their magnetic properties by ¹¹⁹Sn Mössbauer spectroscopy

〇(M1)Kanta Sadashima¹, Genki Takehara¹, Otani Chihana¹, Masaaki Tanaka¹, Ko Mibu¹ (1.Nagoya Inst. of Tech.)

Keywords:19Sn Mossbauer spectroscopy, negative thermal expansion, inverse perovskite type

In this study, we prepared a Mn3CuxSn1-xN thin film showing a gradual negative thermal expansion and investigated its physical properties. From the results of the magnetic evaluation, it was found that the internal magnetic field increased due to the thinning. The cause of this is considered to be a change in composition during film formation or a change in the electronic state around Sn atoms due to in-plane strain due to thinning. In the presentation, I will show the Mössbauer spectra for other compositions x and report on the magnetic changes due to thinning.