High-pressure single crystal growth and magnetoelectric properties of CdMn 7 O 12

• Published in: Journal of physics. Condensed matter Vol. 35; no. 25; p. 254001
• Main Authors: Zhou, Long, Wang, Xiao, Liu, Zhehong, Ye, Xubin, Zhang, Jie, Zhao, Haoting, Lu, Dabiao, Pi, Maocai, Pan, Zhao, Zhang, Xueqiang, Long, Youwen
• Format: Journal Article
• Language: English
• Published: England 28.06.2023
• Subjects: high pressure growth; magnetoelectric properties; quadruple perovskite oxides; single crystal
• ISSN: 0953-8984; 1361-648X
• DOI: 10.1088/1361-648X/acc712

The concurrent presence of large electric polarization and strong magnetoelectric coupling is quite desirable for potential applications of multiferroics. In this paper, we report the growth of CdMn O single crystals by flux method under a high pressure of 8 GPa for the first time. An antiferromagnetic (AFM) order with a polar magnetic point group is found to occur at the onset temperature of = 88 K (AFM1 phase). As a consequence, the pyroelectric current emerges at and gradually increases and reaches its maximum at = 63 K, at which the AFM1 phase finally settles down. Below , CdMn O single crystal exhibits a large ferroelectric polarization up to 2640 C m . Moreover, the spin-induced electric polarization can be readily tuned by applying magnetic fields, giving rise to considerable magnetoelectric coupling effects. Thus, the current CdMn O single crystal acts as a rare multiferroic system where both large polarization and strong magnetoelectric coupling merge concurrently.