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Abstrakt
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.
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Autorzy (11)
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A. Hen
- European Commission, Joint Research Centre Institute for Transuranium Elements ITU
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N. Magnani
- European Commission, Joint Research Centre Institute for Transuranium Elements ITU
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J.-C. Griveau
- European Commission, Joint Research Centre Institute for Transuranium Elements ITU
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R. Eloirdi
- European Commission, Joint Research Centre Institute for Transuranium Elements ITU
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E. Colineau
- European Commission, Joint Research Centre Institute for Transuranium Elements ITU
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J.-P. Sanchez
- CEA INAC SPSMS
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I. Halevy
- Ben Gurion University of the Negev Department of Nuclear Engineering
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A. Shick
- Institute of Physics, Academy of Sciences of the Czech Republic Department of Condensed Matter Theory
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I. Orion
- Ben Gurion University of the Negev Department of Nuclear Engineering
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R. Caciuffo
- European Commission, Joint Research Centre Institute for Transuranium Elements ITU
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Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1103/PhysRevB.92.024410
- Licencja
- Copyright (2015 American Physical Society)
Słowa kluczowe
Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
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PHYSICAL REVIEW B
nr 92,
wydanie 2,
strony 1 - 7,
ISSN: 2469-9950 - Język:
- angielski
- Rok wydania:
- 2015
- Opis bibliograficzny:
- Hen A., Magnani N., Griveau J., Eloirdi R., Colineau E., Sanchez J., Halevy I., Kozub A., Shick A., Orion I., Caciuffo R.: Site-selective magnetic order of neptunium inNp2Ni17// PHYSICAL REVIEW B. -Vol. 92, iss. 2 (2015), s.1-7
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1103/physrevb.92.024410
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 122 razy
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