Magnetic susceptibility of LaxCe1−xF3 single crystals

Paradowski, M. L.; Pacyna, A.W.; Bombik, A.; Korczak, W.; Korczak, S.Z.

doi:10.1016/s0304-8853(99)00824-0

Cited by 9 publications

(4 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Typically, pure LaF 3 crystals are diamagnetic [41]. The presence of Eu 2þ/3þ ions strongly influences such small effects as the diamagnetic contribution and van Vleck paramagnetizm, as reported already for Gd 3þ [42]. One can observe not only paramagnetic behavior but also another component responsible for deviations of M(T), manifested as an upward bending of magnetization curves at moderate temperatures.…”

Section: Samplementioning

confidence: 91%

White and red emitting LaF 3 nanocrystals doped with Eu 2+ and Eu 3+ ions: Spectroscopic and magnetic studies

Grzyb

Szczeszak

Śniadecki

et al. 2016

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Samplementioning

confidence: 91%

White and red emitting LaF 3 nanocrystals doped with Eu 2+ and Eu 3+ ions: Spectroscopic and magnetic studies

Grzyb

Szczeszak

Śniadecki

et al. 2016

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…The calculated high-temperature PM Weiss temperature θ is −129.3 ± 1.4 K, suggesting antiferromagnetic ordering at low temperatures. The large difference between the value of θ and the Néel temperature T N inferred from neutron data (2 K < T N < 3 K, see section 3.2) for LaYbO 3 suggests that the main contribution to PM Weiss temperature comes from crystal field effects, whereas contribution from exchange interaction between Yb 3+ ions plays a secondary role [12].…”

Section: Magnetic Propertiesmentioning

confidence: 95%

DC magnetic susceptibility and neutron powder diffraction analysis of the perovskite-type compounds LaYbO₃and LaHoO₃

Martinelli

Masini

Artini³

et al. 2013

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Magnetization measurements and neutron powder diffraction analyses followed by Rietveld refinement have been carried out in order to investigate the magnetic structures of LaYbO3 and LaHoO3. Both compounds exhibit a negative thermal expansion along the a and b axes. In LaYbO3 Yb(3+) spins order at 2.4 K according to a FyGz-type structure, belonging to the Pn'ma' magnetic space group. Conversely, LaHoO3 is paramagnetic down to 1.5 K.

show abstract

“…The rather small differences between the values of the Weiss constant (between 9 and 46 K) and the Ne ´el (T N ) temperatures (lower than 10 K) in ROBr suggest that a non-negligible contribution to the Weiss constant y may come from the exchange interaction between the R 3+ ions. 30 There seems, however, to be no direct correlation between the y and T N values.…”

Section: Analysis Of the Magnetic Susceptibilitymentioning

confidence: 98%

Interplay between crystal structure and magnetic susceptibility of tetragonal ROBr

Hölsä

Lastusaari

Niittykoski

et al. 2002

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

The average magnetic susceptibilities for trivalent rare earth (R 3+ ) ions in polycrystalline tetragonal rare earth oxybromides (ROBr, R ¼ Ce-Nd, Sm, Eu, and Tb-Yb) were measured between 2 and 298 K. The susceptibilities of all ROBr follow the paramagnetic Curie-Weiss behaviour down to low temperatures except for SmOBr and EuOBr where the effect of crystal field was observed already above 200 K. The observed effective magnetic moments m eff (RT) were generally higher than the free ion values. For the heavier R 3+ ions (Ho 3+ and Er 3+ ) m eff was found to be less than the free ion value due to crystal field mixing in the opposite way. The Weiss constant y was found to be negative for all ROBr, suggesting antiferromagnetic (AFM) ordering at lower temperatures but only SmOBr (SmOCl) and DyOBr (DyOCl) show such ordering at 5(8) and 8(11) K, respectively. The increasing interlayer distance between adjacent (RO) nþ n layers from ROCl to ROBr and within the ROBr series lowers the Ne ´el temperature. AFM ordering thus depends on the 3D interactions while 2D interactions have negligible effect. The temperature dependence of the experimental paramagnetic susceptibility for each ROBr was simulated with the aid of the van Vleck formalism based on the wave functions and energy level values obtained from spectroscopic data. Lattice expansion and consequent modifications in crystal field caused discrepancies at higher temperatures.

show abstract

Magnetic susceptibility of LaxCe1−xF3 single crystals

Cited by 9 publications

References 22 publications

White and red emitting LaF 3 nanocrystals doped with Eu 2+ and Eu 3+ ions: Spectroscopic and magnetic studies

White and red emitting LaF 3 nanocrystals doped with Eu 2+ and Eu 3+ ions: Spectroscopic and magnetic studies

DC magnetic susceptibility and neutron powder diffraction analysis of the perovskite-type compounds LaYbO₃and LaHoO₃

Interplay between crystal structure and magnetic susceptibility of tetragonal ROBr

Contact Info

Product

Resources

About

Magnetic susceptibility of LaxCe1−xF3 single crystals

Cited by 9 publications

References 22 publications

White and red emitting LaF 3 nanocrystals doped with Eu 2+ and Eu 3+ ions: Spectroscopic and magnetic studies

White and red emitting LaF 3 nanocrystals doped with Eu 2+ and Eu 3+ ions: Spectroscopic and magnetic studies

DC magnetic susceptibility and neutron powder diffraction analysis of the perovskite-type compounds LaYbO3and LaHoO3

Interplay between crystal structure and magnetic susceptibility of tetragonal ROBr

Contact Info

Product

Resources

About

DC magnetic susceptibility and neutron powder diffraction analysis of the perovskite-type compounds LaYbO₃and LaHoO₃