We present a detailed study of RNi1-xBi2+-y (R = La-Nd, Sm, Gd-Dy) single
crystals by measurements of stoichiometry and temperature dependent magnetic
susceptibility, magnetization, and electrical resistivity. This series forms
with partial Ni occupancy as well as a variable Bi occupancy. For R = Ce-Nd,
Sm, Gd-Dy, the RNi1-xBi2+-y compounds show local-moment like behavior and order
antiferromagnetically at low temperatures. Determination of anisotropies as
well as antiferromagnetic ordering temperatures for RNi1-xBi2+-y (R = Ce-Nd,
Sm, Gd-Dy) have been made. Although crystalline samples from this family
exhibit minority, second phase superconductivity at low temperatures associated
with Ni-Bi and Bi contamination, no evidence of bulk superconductivity has been
observed

Bud’ko, Sergey

Canfield, Paul

Lin, Xiao

Straszheim, Warren

English

arXiv

We present a detailed study of RNi1−xBi2±y (R = La–Nd, Sm, Gd–Dy) single crystals by measurements of stoichiometry and temperature dependent magnetic susceptibility, magnetization, and electrical resistivity. This series forms with partial Ni occupancy, 0.72 ⩽ (1−x) ⩽ 0.84, as well as a variable Bi occupancy, 1.76 ⩽ (2±y) ⩽ 2.14. For R = Ce–Nd, Gd–Dy, the RNi1−xBi2±y compounds show local-moment like behavior and order antiferromagnetically at low temperatures. Determination of anisotropies as well as antiferromagnetic ordering temperatures for RNi1−xBi2±y (R = Ce–Nd, Sm, Gd–Dy) have been made. Crystalline samples from this family exhibit minority, second phase superconductivity at low temperatures, which can be associated with Ni–Bi and Bi contamination. No evidence of bulk superconductivity has been observed

Straszheim, Warren E.

Bud’ko, Sergey L.

Canfield, Paul C.

Iowa State University Computer Science Technical Reports

Anisotropic magnetization and resistivity of single crystalline RNi1-xBi2 +/- y (R = La-Nd, Sm, Gd-Dy)

We present a detailed study of RNi1−xBi2±y (R = La–Nd, Sm, Gd–Dy) single crystals by measurements of stoichiometry and temperature dependent magnetic susceptibility, magnetization, and electrical resistivity. This series forms with partial Ni occupancy, 0.72 ⩽ (1−x) ⩽ 0.84, as well as a variable Bi occupancy, 1.76 ⩽ (2±y) ⩽ 2.14. For R = Ce–Nd, Gd–Dy, the RNi1−xBi2±y compounds show local-moment like behavior and order antiferromagnetically at low temperatures. Determination of anisotropies as well as antiferromagnetic ordering temperatures for RNi1−xBi2±y (R = Ce–Nd, Sm, Gd–Dy) have been made. Crystalline samples from this family exhibit minority, second phase superconductivity at low temperatures, which can be associated with Ni–Bi and Bi contamination. No evidence of bulk superconductivity has been observed.This is a manuscript of an article published as Lin, Xiao, Warren E. Straszheim, Sergey L. Bud’ko, and Paul C. Canfield. "Anisotropic magnetization and resistivity of single crystalline RNi1− xBi2±y (R= La–Nd, Sm, Gd–Dy)." Journal of Alloys and Compounds 554 (2013): 304-311. DOI: 10.1016/j.jallcom.2012.11.138. Posted with permission.</p

Digital Repository @ Iowa State University (ISU)

https://dr.lib.iastate.edu/handle/20.500.12876/57424

Anisotropic magnetization and resistivity of single crystalline RNi1-xBi2+-y (R = La-Nd, Sm, Gd-Dy)

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Iowa State University Computer Science Technical Reports

Digital Repository @ Iowa State University (ISU)