Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
4
From page :
685
To page :
688
Abstract :
Nanoparticles of superconducting YBa 2 Cu 3 O 7 − δ (YBCO) ( T c = 91 K ) exhibit ferromagnetism at room temperature while the bulk YBCO, obtained by heating the nanoparticles at high temperature (940 ∘C), shows a linear magnetization curve. Across the superconducting transition temperature, the magnetization curve changes from that of a soft ferromagnet to a superconductor. Furthermore, our experiments reveal that not only nanoparticles of metal oxides but also metal nitrides such as NbN ( T c = 6 – 12 K ) and δ -MoN ( T c ∼ 6 K ) exhibit room-temperature ferromagnetism.
Journal title :
Acta Tropica
Serial Year :
2007
Journal title :
Acta Tropica
Record number :
1750071
Link To Document :
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