Results 1 to 10 of about 56,069 (275)

Defect-induced magnetism in undoped wide band gap oxides: Zinc vacancies in ZnO as an example

AIP Advances, 2011
To shed light on the mechanism responsible for the weak ferromagnetism in undoped wide band gap oxides, we carry out a comparative study on ZnO thin films prepared using both sol-gel and molecular beam epitaxy (MBE) methods. Compared with the MBE samples,
G. Z. Xing, Y. H. Lu, Y. F. Tian, J. B. Yi, C. C. Lim, Y. F. Li, G. P. Li, D. D. Wang, B. Yao, J. Ding, Y. P. Feng, T. Wu   +11 more
doaj   +1 more source

Cationic vacancy induced room-temperature ferromagnetism in transparent conducting anatase Ti_{1-x}Ta_xO_2 (x~0.05) thin films

, 2012
We report room-temperature ferromagnetism in highly conducting transparent anatase Ti1-xTaxO2 (x~0.05) thin films grown by pulsed laser deposition on LaAlO3 substrates. Rutherford backscattering spectrometry (RBS), x-ray diffraction (XRD), proton induced
Ariando, Barman, A. Roy, Breese, M. B. H., Dai, Y., Dhar, S., Ding, J., Feng, Y. P., Hilgenkamp, H., Motapothula, M., Neuber, G., Qi, D. -C., Ruebhausen, M., Rusydi, A., Santoso, I., Venkatesan, T., Wee, A. T. S., Yakovlev, N. L., Yang, K., Yi, J. B.   +18 more
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Coexistence of Superconductivity and Ferromagnetism in Ferromagnetic Metals [PDF]

Physical Review Letters, 2001
4pages ...
Karchev, N. I., Blagoev, K. B., Bedell, K. S., Littlewood, P. B.   +3 more
openaire   +3 more sources

Ambipolar ferromagnetism by electrostatic doping of a manganite

Nature Communications, 2018
An ambipolar ferromagnet with both electron- and hole-doped ferromagnetism in a single material would facilitate understanding of ferromagnetic semiconductors for spintronic applications.
L. M. Zheng, X. Renshaw Wang, W. M. Lü, C. J. Li, T. R. Paudel, Z. Q. Liu, Z. Huang, S. W. Zeng, Kun Han, Z. H. Chen, X. P. Qiu, M. S. Li, Shize Yang, B. Yang, Matthew F. Chisholm, L. W. Martin, S. J. Pennycook, E. Y. Tsymbal, J. M. D. Coey, W. W. Cao   +19 more
doaj   +1 more source

Doping change and distortion effect on double-exchange ferromagnetism

, 2005
Doping change and distortion effect on the double-exchange ferromagnetism are studied within a simplified double-exchange model. The presence of distortion is modelled by introducing the Falicov-Kimball interaction between itinerant electrons and ...
Minh-Tien Tran, U. Brandt, V. Zlatic, V. Zlatic, Van-Nham Phan   +4 more
core   +1 more source

Effects of Copper Dopants on the Magnetic Property of Lightly Cu-Doped ZnO Nanocrystals

Nanomaterials, 2020
To explore the origin of magnetism, the effect of light Cu-doping on ferromagnetic and photoluminescence properties of ZnO nanocrystals was investigated. These Cu-doped ZnO nanocrystals were prepared using a facile solution method.
Zhi Wang, Wenzhen Xiao, Mengmeng Tian, Neng Qin, Haidong Shi, Xiwei Zhang, Wenke Zha, Jiahua Tao, Junlong Tian   +8 more
doaj   +1 more source

Ion-Beam Synthesis of Structure-Oriented Iron Nanoparticles in Single-Crystalline Rutile TiO₂

Crystals, 2023
Magnetic nanoparticles embedded into semiconductors have current perspectives for use in semiconducting spintronics. In this work, 40 keV Fe+ ions were implanted in high fluences of (0.5 ÷ 1.5) × 1017 ion/cm2 into an oxide semiconductor and single ...
Iskander R. Vakhitov, Nikolay M. Lyadov, Vladimir I. Vdovin, Anton K. Gutakovskii, Vladimir I. Nuzhdin, Lenar R. Tagirov, Rustam I. Khaibullin   +6 more
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Magnetic coupling properties of rare-earth metals (Gd, Nd) doped ZnO: first-principles calculations

, 2009
The electronic structure and magnetic coupling properties of rare-earth metals (Gd, Nd) doped ZnO have been investigated using first-principles methods.
Li SS, Shi HL, Shi HL Chinese Acad Sci Inst Semicond State Key Lab Superlattices & Microstruct Beijing 100083 Peoples R China. E-mail Address: hlshi@semi.ac.cn, Xia JB, Zhang P   +4 more
core   +1 more source

The magnetic ordering in high magnetoresistance Mn-doped ZnO thin films

AIP Advances, 2016
We studied the nature of magnetic ordering in Mn-doped ZnO thin films that exhibited ferromagnetism at 300 K and superparamagnetism at 5 K. We directly inter-related the magnetisation and magnetoresistance by invoking the polaron percolation theory and ...
S. Venkatesh, A. Baras, J.-S. Lee, I. S. Roqan   +3 more
doaj   +1 more source

Biosynthesis, Optical and Magnetic Properties of Fe-Doped ZnO/C Nanoparticles

Surfaces, 2023
Employing a self-combustion method supported by egg white, pure and Fe-doped ZnO/C nanoparticles successfully biosynthesized. XRD, FTIR, Raman, SEM/EDS and TEM measurements were used to characterize the pure and doped systems.
Omar H. Abd-Elkader, Mai Nasrallah, Lotfi Aleya, Mohamed Nasrallah   +3 more
doaj   +1 more source