Magnetism of the singlet-singlet system PrNi5−Cu

Кучин, А. Г.; Gurevich, A. M.; Dmitriev, V. M.; Terekhov, Alexander V.; Chagovets, T. V.; Ermolenko, A. S.

doi:10.1016/j.jallcom.2003.08.095

Cited by 5 publications

(4 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The above-described peculiarities of the magnetic properties of the RNi 5Àx Cu x compounds with R ¼ La, Ce, Nd, Sm, Dy, Ho, Er, Tm, Lu are similar to those published earlier in our papers [5,12,17] for R ¼ Y, Pr, Gd, Tb. We shall discuss these peculiarities using the main approaches suggested in these papers.…”

Section: Discussionsupporting

confidence: 89%

See 1 more Smart Citation

Magnetic properties of RNi5−xCux intermetallics

Кучин

Ermolenko

Kulikov

et al. 2006

Journal of Magnetism and Magnetic Materials

Self Cite

View full text Add to dashboard Cite

Section: Discussionsupporting

confidence: 89%

“…The PrNi 5 compound is an exception. It is a Van Vleck paramagnet in which crystal field CF completely freezes the magnetic moment of Pr ion [2,5]. The overall crystal field splitting of the ground state of LS multiplet of R 3+ ions in RNi 5 is more than one order higher than T C .…”

Section: Introductionmentioning

confidence: 99%

Magnetic properties of RNi5−xCux intermetallics

Кучин

Ermolenko

Kulikov

et al. 2006

Journal of Magnetism and Magnetic Materials

Self Cite

View full text Add to dashboard Cite

“…For non-magnetic rare earth (R = La, Ce, Lu, and Y), the compounds are enhanced Pauli paramagnets, otherwise they are ferromagnetic, with the highest T C = 32 K exhibited by GdNi 5 16,17 . An exception is PrNi 5 , which is characterized by a well-isolated singlet CF ground state, and is therefore a Van Vleck paramagnet [18][19][20][21] . Here, we present the results obtained by Superconducting Quantum Interference Device (SQUID) magnetometry, specific heat, Mössbauer spectroscopy, and x-ray magnetic circular dichroism (XMCD) measurements carried out on NpNi 5 polycrystalline samples.…”

Section: Introductionmentioning

confidence: 99%

Low-temperature magnetic properties ofNpNi5

et al. 2014

View full text Add to dashboard Cite

We present the result of an extended experimental characterization of the hexagonal intermetallic Haucke compound NpNi5. By combining macroscopic and shell-specific techniques, we determine the 5f -shell occupation number n f close to 4 for the Np ions, together with orbital and spin components of the ordered moment in the ferromagnetic phase below TC = 16 K (µS = -1.88 µB and µL = 3.91 µB). The apparent coexistence of ordered and disordered phases observed in the Mössbauer spectra is explained in terms of slow relaxation between the components of a quasi-triplet ground state. The ratio between the expectation value of the magnetic dipole operator and the spin magnetic moment (3 Tz / Sz = +1.43) is positive and large, suggesting a localized character of the 5f electrons. The angular part of the spin-orbit coupling ( ℓ · s = -5.55) is close to the value of -6.25 calculated for trivalent Np ions in intermediate coupling approximation. The results are discussed against the prediction of first-principle electronic structure calculations based on the spin-polarized local spin density approximation plus Hubbard interaction, and of a mean field model taking into account crystal field and exchange interactions.

show abstract

Section: Introductionmentioning

confidence: 99%

Low temperature magnetic properties of NpNi$_5$

Hen,

Colineau,

Eloirdi

et al. 2014

Preprint

View full text Add to dashboard Cite

We present the result of an extended experimental characterization of the hexagonal intermetallic Haucke compound NpNi5. By combining macroscopic and shell-specific techniques, we determine the 5f -shell occupation number n f close to 4 for the Np ions, together with orbital and spin components of the ordered moment in the ferromagnetic phase below TC = 16 K (µS = -1.88 µB and µL = 3.91 µB). The apparent coexistence of ordered and disordered phases observed in the Mössbauer spectra is explained in terms of slow relaxation between the components of a quasi-triplet ground state. The ratio between the expectation value of the magnetic dipole operator and the spin magnetic moment (3 Tz / Sz = +1.43) is positive and large, suggesting a localized character of the 5f electrons. The angular part of the spin-orbit coupling ( ℓ • s = -5.55) is close to the value of -6.25 calculated for trivalent Np ions in intermediate coupling approximation. The results are discussed against the prediction of first-principle electronic structure calculations based on the spin-polarized local spin density approximation plus Hubbard interaction, and of a mean field model taking into account crystal field and exchange interactions.

show abstract

Magnetism of the singlet-singlet system PrNi5−Cu

Cited by 5 publications

References 14 publications

Magnetic properties of RNi5−xCux intermetallics

Magnetic properties of RNi5−xCux intermetallics

Low-temperature magnetic properties ofNpNi5

Low temperature magnetic properties of NpNi$_5$

Contact Info

Product

Resources

About