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Mutual Ferromagnetic–Ferroelectric Coupling in Multiferroic Copper‐Doped ZnO
Author(s) -
Herng Tun Seng,
Wong Meng Fei,
Qi Dongchen,
Yi Jiabao,
Kumar Amit,
Huang Alicia,
Kartawidjaja Fransiska Cecilia,
Smadici Serban,
Abbamonte Peter,
SánchezHanke Cecilia,
Shannigrahi Santiranjan,
Xue Jun Min,
Wang John,
Feng Yuan Ping,
Rusydi Andrivo,
Zeng Kaiyang,
Ding Jun
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201004519
Subject(s) - ferroelectricity , multiferroics , ferromagnetism , materials science , doping , condensed matter physics , ferromagnetic material properties , domain (mathematical analysis) , coupling (piping) , copper , nanotechnology , optoelectronics , magnetization , dielectric , magnetic field , physics , metallurgy , quantum mechanics , mathematical analysis , mathematics
A mutual ferromagnetic and ferroelectric coupling (multiferroic behavior) in Cu‐doped ZnO is demonstrated via deterministic control of Cu doping and defect engineering. The coexistence of multivalence Cu ions and oxygen vacancies is important to multiferroic behaviors in ZnO:Cu. The samples show clear ferroelectric and ferromagnetic domain patterns. These domain structures may be written reversibly via electric and magnetic bias.