Related Experiment Video
Updated: Jun 3, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
CeNiAsO: an antiferromagnetic dense Kondo lattice
Yongkang Luo1, Han Han, Hao Tan
1Department of Physics, Zhejiang University, Hangzhou 310027, People's Republic of China.
Abstract:
A cerium-containing pnictide, CeNiAsO, crystallized in the ZrCuSiAs-type structure, has been investigated by measuring transport and magnetic properties, as well as specific heat. We found that CeNiAsO is an antiferromagnetic dense Kondo lattice metallic compound with Kondo scale T(K) ∼15 K and shows an enhanced Sommerfeld coefficient of γ(0) ∼203 mJ mol K(-2). While no superconductivity can be observed down to 30 mK, Ce ions exhibit two successive antiferromagnetic (AFM) transitions. We propose that the magnetic moment of the Ce ion could align in the G-type AFM order below the first transition at T(N1)=9.3 K, and it might be modified into the C-type AFM order below a lower transition at T(N2)=7.3 K. Our results indicate that the 3d-4f interlayer Kondo interactions play an important role in Ni-based Ce-containing pnictides.
More Related Videos
Related Concept Videos
Ferromagnetism
Valence Bond Theory
Lattice Energies of Ionic Crystals
Trends in Lattice Energy: Ion Size and Charge
Diamagnetism
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets.
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.

