We present the results obtained by superconducting quantum interference device (SQUID) magnetometry, specific heat, and Mossbauer spectroscopy measurements carried out on Np2Ni17 polycrystalline samples. We show that long-range magnetic order, with a moment mu((2b)) similar to 2.25 mu(B), occurs below T-N = 17.5 K on the Np (2b) sites. A nontrivial situation is observed in that the other Np sites (2d) do not take part to the order transition and carry only an induced moment of about 0.2 mu(B) below T-N. A combined analysis of the different experimental data sets allowed us to determine key parameters associated with the electronic structure of the system. The experimental results are discussed against first-principles electronic structure calculations based on the spin-polarized local spin density approximation plus Hubbard interaction.
Authors
- A. Hen,
- N. Magnani,
- J.-C. Griveau,
- R. Eloirdi,
- E. Colineau,
- J.-P. Sanchez,
- I. Halevy,
- Agnieszka Kozub link open in new tab ,
- A. Shick,
- I. Orion,
- R. Caciuffo
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1103/physrevb.92.024410
- Category
- Publikacja w czasopiśmie
- Type
- artykuł w czasopiśmie wyróżnionym w JCR
- Language
- angielski
- Publication year
- 2015
