Aicha Harat

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In this work, a series of nitrogen-doped multi-walled carbon nanotubes (N-MWCNTs) with several weight percentages (0.1, 0.4, 0.8, and 1.0 wt.%) were synthesized by catalytic chemical vapor deposition (CCVD) technique. The N-MWCNTs were first characterized and then dispersed in high-density polyethylene (HDPE) polymer matrix to form a nanocomposite. The(More)
Magnetic susceptibilities of the first and third orders as well as the magnetization of the singlet paramagnet HoBa(2)Cu(3)O(x) (x≈6.0) at low temperatures are studied experimentally using a SQUID magnetometer and compared with theoretical calculations. The magnetic behaviour of single-crystal HoBa(2)Cu(3)O(x) at low temperature is found not to follow the(More)
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