Spherical neutron polarimetry under high pressure for a multiferroic delafossite ferrite

高圧下三次元中性子偏極解析によるデラフォサイト型マルチフェロイックフェライトの研究

寺田 典樹*; Qureshi, N.*; Chapon, L. C.*; 長壁 豊隆  

Terada, Noriki*; Qureshi, N.*; Chapon, L. C.*; Osakabe, Toyotaka

We have succeeded in carrying out the first spherical neutron polarimetry (SNP) experiments in conjunction with the application of pressure, working with the multiferroic delafossite CuFeO and using the newly developed nonmagnetic hybrid anvil high pressure cell (HAC). This work determined the detailed magnetic structures in the pressure-induced ferroelectric phases of this material, as well as nonpolar phases at ambient pressure. The present study provides evidence that SNP measurements are viable even in combination with high pressure conditions.