New J Phys 2010, 12:013020.CrossRef 7. Coey JMD, Venkatesan M, Fitzgerald CB: Donor impurity band exchange in dilute ferromagnetic oxides. Nat Mater 2005, 4:173–179.CrossRef 8. Belghazi Y, Schmerber G, Colis S, LY2603618 Rehspringer JL, Dinia A, Berrada A: Extrinsic origin of ferromagnetism in ZnO and Zn 0.9 Co 0.1 O magnetic semiconductor MK-0457 ic50 films prepared by sol-gel technique. Appl Phys Lett 2006, 89:122504.CrossRef 9. Samanta K, Bhattacharya P, Katiyar RS: Optical properties of Zn 1-x Co x O thin
films grown on Al 2 O 3 (0001) substrates. Appl Phys Lett 2005, 87:101903.CrossRef 10. Dinia A, Schmerber G, Mény C, Pierron-Bohnes V, Beaurepaire E: Room-temperature ferromagnetism in Zn 1-x Co x O magnetic semiconductors prepared by sputtering. J Appl Phys 2005, 97:123908.CrossRef 11. Lee H-J,
Park CH, Jeong S-Y, Yee K-J, Cho CR, Jung M-H, Chadi DJ: Hydrogen-induced ferromagnetism in ZnCoO. Appl Phys Lett 2006, 88:062504.CrossRef 12. Lee selleck screening library H-J, Choi SH, Cho CR, Kim HK, Jeong S-Y: The formation of precipitates in the ZnCoO system. Europhys Lett 2005, 72:76–82.CrossRef 13. Lee S, Cho YC, Kim S-J, Cho CR, Jeong S-Y, Kim SJ, Kim JP, Choi YN, Sur JM: Reproducible manipulation of spin ordering in ZnCoO nanocrystals by hydrogen mediation. Appl Phys Lett 2009, 94:212507.CrossRef 14. Kim SJ, Cha SY, Kim JY, Shin JM, Cho YC, Lee S, Kim W-K, Jeong S-Y, Yang YS, Cho Thymidylate synthase CR, Choi HW, Jung MH, Jun B-E, Kwon K-Y, Kuroiwa Y, Moriyoshi C: Ferromagnetism in ZnCoO due to hydrogen-mediated Co–H–Co complexes: how to avoid the formation
of Co metal clusters? J Phys Chem C 2012, 116:12196–12202.CrossRef 15. Lee S, Kim B-S, Cho YC, Shin J-M, Seo S-W, Cho CR, Takeuchi I, Jeong S-Y: Origin of the ferromagnetism in ZnCoO from chemical reaction of Co 3 O 4 . Curr Appl Phys 2013, 13:2005–2009.CrossRef 16. Cho YC, Kim S-J, Lee S, Kim SJ, Cho CR, Nahm H-H, Park CH, Jeong IK, Park S, Hong TE, Kuroda S, Jeong S-Y: Reversible ferromagnetism spin ordering governed by hydrogen in Co-doped ZnO semiconductor. Appl Phys Lett 2009, 95:172514.CrossRef 17. Cho YC, Lee S, Nahm HH, Kim SJ, Park CH, Lee SY, Kim S-K, Cho CR, Koinuma H, Jeong S-Y: Conductive and ferromagnetic contributions of H in ZnCoO using H 2 hot isostatic pressure. Appl Phys Lett 2012, 100:112403.CrossRef 18. Li L, Guo Y, Cui XY, Zheng R, Ohtani K, Kong C, Ceguerra AV, Moody MP, Ye JD, Tan HH, Jagadish C, Liu H, Stampfl C, Ohno H, Ringer SP, Matsukura F: Magnetism of Co-doped ZnO epitaxially grown on a ZnO substrate. Phys Rev B 2012, 85:174430.CrossRef 19. Kim SJ, Lee S, Cho YC, Choi YN, Park S, Jeong IK, Kuroiwa Y, Moriyoshi C, Jeong S-Y: Direct observation of deuterium in ferromagnetic Zn 0.9 Co 0.1 O:D. Phys Rev B 2010, 81:212408.CrossRef 20.