TY - JOUR
T1 - Structure and anisotropic properties of BaFe2-x Nix As2 (x=0, 1, and 2) single crystals
AU - Sefat, Athena S.
AU - McGuire, Michael A.
AU - Jin, Rongying
AU - Sales, Brian C.
AU - Mandrus, David
AU - Ronning, Filip
AU - Bauer, E. D.
AU - Mozharivskyj, Yurij
PY - 2009/3/3
Y1 - 2009/3/3
N2 - The crystal structure, electrical resistivity, magnetic susceptibility, and heat capacity of single crystals of BaFe2 As2, BaNi2 As2, and BaFeNiAs2 are reported. BaFe2 As2 data indicate the equivalence of C (T), d (χT) /dT, and dρ/dT results in determining the antiferromagnetic transition at TN =132 (1) K. BaNi2 As2 shows a structural phase transition from a high-temperature tetragonal phase to a low-temperature triclinic phase (P 1̄ symmetry) at T0 =131 K, with superconducting critical temperature Tc =0.69 K. BaFeNiAs2 does not show any sign of superconductivity and its properties resemble BaCo2 As2, a renormalized paramagnetic metal.
AB - The crystal structure, electrical resistivity, magnetic susceptibility, and heat capacity of single crystals of BaFe2 As2, BaNi2 As2, and BaFeNiAs2 are reported. BaFe2 As2 data indicate the equivalence of C (T), d (χT) /dT, and dρ/dT results in determining the antiferromagnetic transition at TN =132 (1) K. BaNi2 As2 shows a structural phase transition from a high-temperature tetragonal phase to a low-temperature triclinic phase (P 1̄ symmetry) at T0 =131 K, with superconducting critical temperature Tc =0.69 K. BaFeNiAs2 does not show any sign of superconductivity and its properties resemble BaCo2 As2, a renormalized paramagnetic metal.
UR - http://www.scopus.com/inward/record.url?scp=63249119743&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.79.094508
DO - 10.1103/PhysRevB.79.094508
M3 - Article
AN - SCOPUS:63249119743
SN - 1098-0121
VL - 79
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 9
M1 - 094508
ER -