Magnetic phase diagrams of R3(Co:Ni)13B2, R=Y and Nd intermetallic compounds

Bartolomé, J.; Plugaru, N.; Campo, Javier; Rubín, Javier; Hlil, E.K.; Rillo, C.; Arauzo, Ana B.

doi:10.1016/j.jallcom.2006.10.177

Cited by 7 publications

(3 citation statements)

References 33 publications

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“…Magnetic phase diagrams of this series [2] show that these compounds order ferromagnetically for x > 0 and the critical temperature, T c , increases linearly with increasing Co content. T c is below 300 K only for x < 6.…”

Section: Introductionmentioning

confidence: 89%

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Low Temperature Heat Capacity Study of Nd3Ni13-xCoxB2 Series

Arauzo

Bartolomé

Rillo

et al. 2009

SSP

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The Low Temperature Heat Capacity of the layered structure Nd3Ni13-xCoxB2 (x = 0, 1, 3, 6, 8, 11 and 13) solid solutions has been measured from 350 mK to 300 K. For high Co content (x ≥ 8), a hyperfine contribution has been explained as due to hyperfine fields of 112.4 kG for Co and 3.68 MG for Nd. The electronic heat capacity contribution reveals an increase of the density of states at the Fermi level as the Co content is increased. For x = 0 a low dimensionality magnetic transition attributed to the Nd sublattice is observed. The substitution of Ni by Co (1  x < 3) induces interaction disorder on the Nd sublattice. For Nd3Ni13B2 an estimation is given for the molecular field of Hm = 54 kG and the exchange constant of J/kB = 4.1 K.

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Section: Introductionmentioning

confidence: 89%

“…where the effective g = 4.5 has been obtained from the reported saturation moment for the Nd, M S = 6.8  B /fu [2]. H T is the total field acting on the sample, sum of the molecular field H m and the external field, H ext .…”

Section: Figure4 Electronic Constant γ As a Function Of Co Substituti...mentioning

confidence: 99%

Low Temperature Heat Capacity Study of Nd3Ni13-xCoxB2 Series

Arauzo

Bartolomé

Rillo

et al. 2009

SSP

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“…To this purpose, we consider a nonmagnetic rare-earth (yttrium), in order to be sure the magnetic contributions are only due to the 3d sub-lattice. In addition, we considered two transition metals: Ni and Co. From one side, Ni ions do not contribute to the magnetic anisotropy, 7 while Co ions are extremely anisotropic. 8 Thus, we prepare YNi 4-x Co x B alloys, with x ¼ 0, 1, 2, 3, and 4.…”

Section: Introductionmentioning

confidence: 99%

Competing anisotropies on 3d sub-lattice of YNi4–xCoxB compounds

Caraballo-Vivas

Rocco

Costa-Soares

et al. 2014

Journal of Applied Physics

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The magnetic anisotropy of 3d sub-lattices has an important rule on the overall magnetic properties of hard magnets. Intermetallics alloys with boron (R-Co/Ni-B, for instance) belong to those hard magnets family and are useful objects to help to understand the magnetic behavior of 3d sub-lattice, specially when the rare earth ions R do not have magnetic nature, like YCo 4 B ferromagnetic material. Interestingly, YNi 4 B is a paramagnetic material and Ni ions do not contribute to the magnetic anisotropy. We focused therefore our attention to YNi 4-x Co x B series, with x ¼ 0, 1, 2, 3, and 4. The magnetic anisotropy of these compounds is deeper described using statistical and preferential models of Co occupation among the possible Wyckoff positions into the CeCo 4 B type hexagonal structure. We found that the preferential model is the most suitable to explain the magnetization experimental data. V

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