Synthesis and properties of Ho T 2 Al 20 ( T  = Ti, V, Cr) intermetallic cage compounds

Winiarski, Michał J.; Klimczuk, Tomasz

doi:10.1016/j.intermet.2017.02.005

Cited by 15 publications

(3 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It would be interesting to test this alternative approach with the high quality specific heat data published recently for the neighbouring intermetallic compounds HoV 2 Al 20 [25] and ErV 2 Al 20 [26]. In both of these investigations, the theoretical CF contribution is incorrectly represented as a simple low temperature Schottky term.…”

Section: Discussionmentioning

confidence: 99%

Determination of the crystal field levels in TmV2Al20

White

Hutchison

Iles

et al. 2020

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Determination of the crystal field levels in TmV2Al20

White

Hutchison

Iles

et al. 2020

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…The physical behavior of these systems is mostly dominated by the 4f and 5f electrons and arises from Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, Kondo effect and crystal-field effects giving rise to many phenomena such as electronic 40 topological (Lifshitz) transitions, heavy-fermion and quantum critical states, superconductivity, magnetic or multi-polar ordering, and many others (for a review see e.g. [3,4,5,6,7,8,9,10,11,12,13,14,17,15,16,19,20]). Wide variety of RT 2 M 20 compounds offers a considerable chemical tunability of their physical properties.…”

Section: Introductionmentioning

confidence: 99%

Electronic properties of RX2Al20 (R  =  La, Ce, Yb, Th, U; X  =  Ti, V, Cr and Mn) cage compounds

Swatek

Kleinert

Wiśniewski

et al. 2018

Computational Materials Science

View full text Add to dashboard Cite

Here, non-spin-polarized electronic structures and Fermi surface properties of RX 2Al 20 (R = La, Ce, Yb, Th, U; X = Ti, V, Cr, Mn) intermetallic compounds were calculated using the full potential all-electron local orbital (FPLO) approach in the framework of the local density approximation (LDA). Trends of the magnetism are discussed in terms of the characteristics of X-3d bands with a quantitative analysis of the relationship between band electron filling and crystal electric field splitting. Since coordination icosahedra of X-atoms have small trigonal distortion, crystal electric field splits the fivefold degenerate X-3d state into lowenergy singlet and two higher-energy doublets e g. In RTi 2Al 20 and RV 2Al 20 the population of the related 3d sub-band is not sufficient to cause energetically favorable spin polarization, whereas magnetic instabilities develop in the RCr 2Al 20 series. Finally, a manifestation of strong repulsive interactions between itinerant Mn-d electrons become most pronounced in ferromagnetic UMn 2Al 20. The influence of non-magnetic R-f states on magnetic and thermodynamic properties is discussed with special emphasis on the role of the f-p and f-d hybridization. For LaTi 2Al 20 and LaV 2Al 20 the calculated quantum oscillation frequencies are in accord with experimental reports

show abstract

“…[2][3][4][5][6][7][8][9][10][11][12][13][14][15] In the meantime, some ternary AT 2 Al 20 intermetallics systems (where A = actinide/lanthanide/calcium and T = transition metal) were synthesized with CeCr 2 Al 20type structure. [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] Kangas and Thiede synthesized the new LaT 2 Al 20 (T = Ti, V, Cr, Nb, and Ta) intermetallics by using a step-wise arc melting technique and by self-flux method. [31,32] For these new LaT 2 Al 20 phases, although their intrinsic physical properties have been explored, their mechanical properties and thermodynamics properties are not clarified.…”

Section: Introductionmentioning

confidence: 99%

First-principles investigations on structural stability, mechanical, and thermodynamic properties of La T ₂ Al ₂₀ ( T = Ti, V, Cr, Nb, and Ta) intermetallic cage compounds

Quan¹,

Zhang²,

Liu³

et al. 2018

Chinese Phys. B

View full text Add to dashboard Cite

First principles calculations were used to explore the structural stability, mechanical properties, and thermodynamic properties of LaT 2 Al 20 (T = Ti, V, Cr, Nb, and Ta) intermetallics. The calculated formation enthalpy and phonon frequencies indicate that LaT 2 Al 20 intermetallics exhibit the structural stability. The elastic moduli (B, G, E, and H v ) indicate that these intermetallics possess the better elastic properties than pure Al. The values of Poisson's ratio v and B/G demonstrate that LaT 2 Al 20 intermetallics are all brittle materials. The anisotropy of elasticity and Young's modulus (three-and two-dimensional figures) indicate that LaT 2 Al 20 compounds are anisotropic. Importantly, the calculated thermal quantities demonstrate that LaT 2 Al 20 intermetallics possess the better thermal physical properties than pure Al at high temperatures.

show abstract

Synthesis and properties of Ho T 2 Al 20 ( T = Ti, V, Cr) intermetallic cage compounds

Cited by 15 publications

References 38 publications

Determination of the crystal field levels in TmV2Al20

Determination of the crystal field levels in TmV2Al20

Electronic properties of RX2Al20 (R  =  La, Ce, Yb, Th, U; X  =  Ti, V, Cr and Mn) cage compounds

First-principles investigations on structural stability, mechanical, and thermodynamic properties of La T ₂ Al ₂₀ ( T = Ti, V, Cr, Nb, and Ta) intermetallic cage compounds

Contact Info

Product

Resources

About

Synthesis and properties of Ho T 2 Al 20 ( T = Ti, V, Cr) intermetallic cage compounds

Cited by 15 publications

References 38 publications

Determination of the crystal field levels in TmV2Al20

Determination of the crystal field levels in TmV2Al20

Electronic properties of RX2Al20 (R = La, Ce, Yb, Th, U; X = Ti, V, Cr and Mn) cage compounds

First-principles investigations on structural stability, mechanical, and thermodynamic properties of La T 2 Al 20 ( T = Ti, V, Cr, Nb, and Ta) intermetallic cage compounds

Contact Info

Product

Resources

About

Electronic properties of RX2Al20 (R  =  La, Ce, Yb, Th, U; X  =  Ti, V, Cr and Mn) cage compounds

First-principles investigations on structural stability, mechanical, and thermodynamic properties of La T ₂ Al ₂₀ ( T = Ti, V, Cr, Nb, and Ta) intermetallic cage compounds