caa a22 4500 445383283 CHVBK 20180317143024.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10948-010-1121-1 doi (NATIONALLICENCE)springer-10.1007/s10948-010-1121-1 Room Temperature Magnetism in Co-doped ZnO Nanorods [Elektronische Daten] [Liguo Xu, Kai Shen, Qingyu Xu] Zn1−x Co x O (x=0, 0.02, 0.04, 0.06, 0.08, 0.10) nanorods have been synthesized by the hydrothermal method. XRD patterns show that all samples are wurtzite structure without impurity. The magnetization measurements show that the pure ZnO is diamagnetic, while paramagnetism dominates in Zn1−x Co x O nanorods. Paramagnetism increases linearly with an increasing Co concentration. The magnetic moment calculated from the magnetic susceptibility is around 4μ B/Co, which is close to the theoretical value of Co ions with L=1.07 and S=3/2 in all Zn1−x Co x O nanorods, indicating the Co atoms are mostly isolated. All the samples exhibit weak ferromagnetism. However, the saturation magnetization of the ferromagnetic contribution in Zn1−x Co x O almost keeps constant with increasing Co concentration. We conclude that the weak ferromagnetism in Zn1−x Co x O might be due to the high concentration of defects. Springer Science+Business Media, LLC, 2010 Diluted magnetic semiconductors nationallicence Co-doped ZnO nationallicence Ferromagnetism nationallicence Xu Liguo School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China aut Shen Kai School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China aut Xu Qingyu Department of Physics, Southeast University, 211189, Nanjing, China aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1767-1771 1557-1939 24:5<1767 2011 24 10948 https://doi.org/10.1007/s10948-010-1121-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1121-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu Liguo School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China aut NATIONALLICENCE 700 1- Shen Kai School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China aut NATIONALLICENCE 700 1- Xu Qingyu Department of Physics, Southeast University, 211189, Nanjing, China aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1767-1771 1557-1939 24:5<1767 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer