Ceramic sample of CuCrO₂ was synthesized via a solid-state reaction method. XANES, dielectric, ferroelectric, pyroelectric, synchrotron x-ray diffraction (SXRD), transmission electron microscope (TEM) and Raman measurements were performed on the prepared sample. Ferroelectric hysteresis loop, PUND, and pyroelectric current measurements indicate the presence of ferroelectricity in the prepared sample. The appearance of a broad maximum in dielectric permittivity and its frequency dispersion indicates the possibility of relaxor-type ferroelectricity in the system. Furthermore, TEM measurements revealed the presence of nano regions that are speculated to be polar and hence are giving rise to relaxor-type ferroelectricity. Careful analysis of XRD data indicates that the distorted CrO₆ octahedra is giving rise to strain in the sample. This strain might be responsible for the observed nano regions, which might be polar, in the otherwise non-polar matrix. It is proposed that these polar regions are responsible for the presence of relaxor-type ferroelectricity in the sample.

通过固相反应法合成CuCrO _2的陶瓷样品。对制备的样品进行XANES，电介质，铁电，热电，同步加速器X射线衍射（SXRD），透射电子显微镜（TEM）和拉曼测量。铁电磁滞回线，PUND和热电电流测量表明所制备的样品中存在铁电。介电常数及其频率色散的最大值出现很宽，表明系统中可能存在弛豫型铁电。此外，TEM测量揭示了纳米区域的存在，该区域被认为是极性的，因此会产生弛豫型铁电。仔细分析XRD数据表明CrO ₆变形八面体在样品中产生应变。该应变可能是导致在非极性基质中观察到的纳米区域的原因，该区域可能是极性的。建议这些极性区域负责样品中弛豫型铁电的存在。