Negative magnetoresistivity of the RM4Al8 (R=Sc, Y, Ce, Yb, Lu; M=Cr, Mn, Fe) ternaries with the ThMn12-type crystal structure

Dmitriev, V. M.; Terekhov, Alexander V.; Suski, W.; Ishchenko, L. A.; Ćwik, J.; Palewski, Т.; Kotur, B.; Talik, E.

doi:10.1016/j.jallcom.2006.11.015

Cited by 8 publications

(11 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…53 and negative magnetoresistance in LnFe 4 Al 8 (Ln = Sc, Y, Ce, Yb, and Lu). 58,59 Ln(Cu,Ga) 12 crystallizes in the tetragonal ThMn 12 structure type (I4/mmm, a ∼ 8.75 Å and c ∼ 5.13 Å) with only the Ln and Cu having dedicated Wyckoff positions of 2a and 8f, respectively. The remaining two positions in the unit cell, 8i and 8j, are statistically disordered with Cu and Ga resulting in a composition close to LnCu 5.5 Ga 6.5 and the structure of the compound is shown in Figure 7.…”

Section: Chemistry Of Materialsmentioning

confidence: 99%

Adventures in Crystal Growth: Synthesis and Characterization of Single Crystals of Complex Intermetallic Compounds

et al. 2011

View full text Add to dashboard Cite

Supporting Information Yb 0.0061 (6) 0.0093 (6) 0.0085 (6) 0.0017 (7) 0.000 0.000 Pd1 0.0048 (6) 0.0098 (5) 0.0099 (7) 0.000 0.000 0.0009 (4) Pd2 0.0061 (9) 0.0102 (9) 0.0058 (11) 0.000 0.000 −0.0016 (8) Ga1 0.0037 (6) 0.0091 (6) 0.0172 (8) 0.0003 (6) 0.0010 (8) 0.0004 (5) Ga2 0.0071 (11) 0.0103 (9) 0.0112 (12) 0.000 0.000 0.0001 (9) Ga3 0.015 (4) 0.014 (3) 0.021 (4) 0.003 (3) 0.000 0.000 Ga4 0.015 (6) 0.012 (5) 0.016 (6) 0.000 0.000 0.000 Yb(a) 0.0029 (10) 0.0097 (11) 0.0076 (10) 0.000 0.000 0.000 Ga3(a) 0.008 (4) 0.007 (3) 0.005 (4) −0.003 (3) 0.000 0.000 Ga3(b) 0.002 (4) 0.015 (4) 0.012 (4) −0.005 (3) 0.000 0.000 Ga4(a) 0.001 (3) 0.009 (3) 0.005 (3) −0.010 (3) 0.000

show abstract

Section: Chemistry Of Materialsmentioning

confidence: 99%

Adventures in Crystal Growth: Synthesis and Characterization of Single Crystals of Complex Intermetallic Compounds

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Soft X-ray resonant scattering experiments indicated that the ordering of the magnetic moments on the R atoms appears to significantly increase the magnitude of the ordered moment on the Fe atoms . The phenomenon of the negative magnetoresistivity, a decrease of the electrical resistivity in the magnetic fields, was recently observed in RM 4 Al 8 ( R = Sc, Y, Ce, Yb, Lu; M = Cr, Mn, Fe) . This effect results from the Kondo effect combined with a spin-glass state following crystallographic disorder (usually due to M /Al mixtures).…”

Section: Introductionmentioning

confidence: 93%

Crystal and Magnetic Structures of the Chain Antiferromagnet CaFe₄Al₈

et al. 2018

View full text Add to dashboard Cite

The crystal structure of CaFeAl was studied by X-ray single crystal and powder diffraction as well as high-resolution neutron powder diffraction. CaFeAl crystallizes with a tetragonal CeMnAl-type structure, an ordered variant of the ThMn-type (Pearson symbol tI26, space group I4/ mmm, a = 8.777(1), c = 5.077(1) Å). Similarly to the well-known A15-type superconductors, the structure of CaFeAl contains one-dimensional chains of d-metal atoms, which are parallel to the crystallographic fourfold axis. CaFeAl is paramagnetic at room temperature and exhibits long-range antiferromagnetic ordering at about 180 K, combined with a short-range ordered spin arrangement. The magnetic structure, determined by powder neutron diffraction at 4 K, shows that the magnetic moments on the Fe atoms form mirror-inverted chains along the c-direction and are slightly canted from the axis.

show abstract

“…The Al 8 Fe 4 RE IMCs are observed at the Al-rich corner, and they have a tetragonal crystal structure. The 17 Al 8 Fe 4 RE (RE = Sc, Y, La, Ce, Nd, Eu–Er, and Lu) IMCs have also been previously determined in experiments [14,15,16,17,18,19,20,21,22,23,24,25]. Using the empirical electron theory (EET), Al 8 Fe 4 Ce was found to be favorable for the stability of the Al-based alloy as a strengthening phase [15].…”

Section: Introductionmentioning

confidence: 93%

“…Using the empirical electron theory (EET), Al 8 Fe 4 Ce was found to be favorable for the stability of the Al-based alloy as a strengthening phase [15]. The magnetic properties of Al 8 Fe 4 RE have also been investigated [16,17,18,19,20,21], and the electronic conductivity [22] and the negative magnetoresistivity [23] of Al 8 Fe 4 RE have also been studied. Using the lattice inversion method, the lattice constants and lattice vibration spectra of Al 8 Fe 4 RE (RE = Sc, Ce, Nd, Sm) have been reported [24,25].…”

Section: Introductionmentioning

confidence: 99%

Phase Stability and Mechanical Properties of Al8Fe4RE via First-Principle Calculations

et al. 2019

View full text Add to dashboard Cite

We report on the phase stability, elastic, electronic, and lattice dynamic properties of 17 Al8Fe4RE (RE = Sc, Y, La–Lu) intermetallic compounds (IMCs) using first-principle calculations. The calculated lattice constants coincided with the experimental results. The calculated enthalpy formation indicated that all the 17 IMCs are stable. The elastic constants and various moduli indicated that Al8Fe4RE can be used as a strengthening phase due to its high Young’s modulus and shear modulus. The 3D surfaces of Young’s modulus for Al8Fe4RE showed anisotropic behavior, and the values of hardness for the IMCs were high (about 14 GPa). The phonon spectra showed that only Al8Fe4Y had a soft mode, which means the other IMCs are all dynamically stable.

show abstract

Negative magnetoresistivity of the RM4Al8 (R=Sc, Y, Ce, Yb, Lu; M=Cr, Mn, Fe) ternaries with the ThMn12-type crystal structure

Cited by 8 publications

References 27 publications

Adventures in Crystal Growth: Synthesis and Characterization of Single Crystals of Complex Intermetallic Compounds

Adventures in Crystal Growth: Synthesis and Characterization of Single Crystals of Complex Intermetallic Compounds

Crystal and Magnetic Structures of the Chain Antiferromagnet CaFe₄Al₈

Phase Stability and Mechanical Properties of Al8Fe4RE via First-Principle Calculations

Contact Info

Product

Resources

About

Negative magnetoresistivity of the RM4Al8 (R=Sc, Y, Ce, Yb, Lu; M=Cr, Mn, Fe) ternaries with the ThMn12-type crystal structure

Cited by 8 publications

References 27 publications

Adventures in Crystal Growth: Synthesis and Characterization of Single Crystals of Complex Intermetallic Compounds

Adventures in Crystal Growth: Synthesis and Characterization of Single Crystals of Complex Intermetallic Compounds

Crystal and Magnetic Structures of the Chain Antiferromagnet CaFe4Al8

Phase Stability and Mechanical Properties of Al8Fe4RE via First-Principle Calculations

Contact Info

Product

Resources

About

Crystal and Magnetic Structures of the Chain Antiferromagnet CaFe₄Al₈