Electric field control of nonvolatile four-state magnetization at room temperature

Sae Hwan Chun, Yi Sheng Chai, Byung Gu Jeon, Hyung Joon Kim, Yoon Seok Oh, Ingyu Kim, Hanbit Kim, Byeong Jo Jeon, So Young Haam, Ju Young Park, Suk Ho Lee, Jae Ho Chung, Jae Hoon Park, Kee Hoon Kim

Research output: Contribution to journalArticlepeer-review

151 Citations (Scopus)


We find the realization of large converse magnetoelectric (ME) effects at room temperature in a magnetoelectric hexaferrite Ba 0.52Sr 2.48Co 2Fe 24O 41 single crystal, in which rapid change of electric polarization in low magnetic fields (about 5 mT) is coined to a large ME susceptibility of 3200ps/m. The modulation of magnetization then reaches up to 0.62μ B/f.u. in an electric field of 1.14MV/m. We find further that four ME states induced by different ME poling exhibit unique, nonvolatile magnetization versus electric field curves, which can be approximately described by an effective free energy with a distinct set of ME coefficients.

Original languageEnglish
Article number177201
JournalPhysical review letters
Issue number17
Publication statusPublished - 2012 Apr 24

ASJC Scopus subject areas

  • General Physics and Astronomy


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