Signatures of Spin Glass Freezing in NiO Nanoparticles

Details Signatures of Spin Glass Freezing in NiO Nanoparticles Signatures of Spin Glass Freezing in NiO Nanoparticles

2005-03-17

arxiv.org/abs/cond-mat/0503433v1

Phys. Rev. B, vol 72, 104433 (2005)

Physics

Condensed Matter

Other Condensed Matter

8 pages, 9 figures

Scientific paper

10.1103/PhysRevB.72.104433

We present a detailed study of the magnetic properties of sol-gel prepared nickel oxide nanoparticles of different sizes. We report various measurements such as frequency, field and temperature dependence of ac susceptibility, temperature and field dependence of dc magnetization and time decay of thermoremanent magnetization. Our results and analysis show that the system behaves as a spin glass.

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