Unraveling carrier’s kinetics in tuning the ferromagnetism of transparent Zn0.95Co0.05O epitaxial films
作者： P. Satyarthi , S. Ghosh , B.R. Sekhar , Y. Wang , S. Zhou
DOI: 10.1016/J.JALLCOM.2016.06.082
关键词:
摘要: Abstract The search of transparent conducting and ferromagnetic properties in Zn1−xCoxO based diluted magnetic semiconductor is explored either by chemically alloying the different concentration (x) Co or n-type co-doping. present work aims to explore electrical conduction process at variable temperatures, order probe room low temperature ferromagnetism triggered Zn0.95Co0.05O films using inert xenon ion irradiation. origin paramagnetism tunable explained from degree concentric bound polarons (BMPs) stabilization inside range hopping spheres through implication strongly weakly carriers O/Zn related lattice defects tetrahedrally substituted Co2+ ions. paramagnetic behavior as deposited film arises smallest density isolated BMPs resulted mainly marginal localized carrier due its highly insulating nature. progressive enhancement post irradiated a function fluence results overlapping static trigger onset ferromagnetism. strength found be maximal particular optimized highest regime substantial Further reduction ions detrimental owing non-static percolation presence nature intermediate regime.
elsevier.com
sci-hub.se 参考文章(40)
P. Satyarthi, S. Ghosh, Y.T. Wang, S. Zhou, P. Kumar, D. Kanjilal, L. Olivi, D. Bürger, I. Skorupa, H. Schmidt, P. Srivastava, Probing defect driven tunable spontaneous magnetization in paramagnetic Zn0.95Co0.05O epitaxial films by X-ray absorption investigations Journal of Alloys and Compounds. ,vol. 649, pp. 891- 898 ,(2015) , 10.1016/J.JALLCOM.2015.07.218
S. Ramachandran, Ashutosh Tiwari, J. Narayan, Zn0.9Co0.1O-based diluted magnetic semiconducting thin films Applied Physics Letters. ,vol. 84, pp. 5255- 5257 ,(2004) , 10.1063/1.1764936
S. Colis, G. Schmerber, A. Dinia, J. Alaria, H. Bieber, Absence of ferromagnetism in Al-doped Zn0.9Co0.10O diluted magnetic semiconductors Applied Physics Letters. ,vol. 88, pp. 112503- ,(2006) , 10.1063/1.2186079
M. Venkatesan, P. Stamenov, L. S. Dorneles, R. D. Gunning, B. Bernoux, J. M. D. Coey, Magnetic, magnetotransport, and optical properties of Al-doped Zn0.95Co0.05O thin films Applied Physics Letters. ,vol. 90, pp. 242508- ,(2007) , 10.1063/1.2748343
M Ivill, S J Pearton, S Rawal, L Leu, P Sadik, R Das, A F Hebard, M Chisholm, J D Budai, D P Norton, Structure and magnetism of cobalt-doped ZnO thin films New Journal of Physics. ,vol. 10, pp. 065002- ,(2008) , 10.1088/1367-2630/10/6/065002
SA Wolf, DD Awschalom, RA Buhrman, JM Daughton, von S von Molnár, ML Roukes, A Yu Chtchelkanova, DM Treger, Spintronics: A Spin-Based Electronics Vision for the Future Science. ,vol. 294, pp. 1488- 1495 ,(2001) , 10.1126/SCIENCE.1065389
Tadatsugu Minami, Transparent conducting oxide semiconductors for transparent electrodes Semiconductor Science and Technology. ,vol. 20, ,(2005) , 10.1088/0268-1242/20/4/004
Tim Kaspar, Jan Fiedler, Ilona Skorupa, Danilo Burger, Arndt Mucklich, Monika Fritzsche, Oliver G. Schmidt, Heidemarie Schmidt, Persistent Current Reduction in Metal-Semiconductor FETs With a ZnCoO Channel in an External Magnetic Field IEEE Electron Device Letters. ,vol. 34, pp. 1271- 1273 ,(2013) , 10.1109/LED.2013.2278538
H. Ohno, Making Nonmagnetic Semiconductors Ferromagnetic Science. ,vol. 281, pp. 951- 956 ,(1998) , 10.1126/SCIENCE.281.5379.951
Md Nurul Islam, T.B. Ghosh, K.L. Chopra, H.N. Acharya, XPS and X-ray diffraction studies of aluminum-doped zinc oxide transparent conducting films Thin Solid Films. ,vol. 280, pp. 20- 25 ,(1996) , 10.1016/0040-6090(95)08239-5