Campus Units

Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Submitted Manuscript

Publication Date

3-25-2013

Journal or Book Title

Journal of Alloys and Compounds

Volume

554

First Page

304

Last Page

311

DOI

10.1016/j.jallcom.2012.11.138

Abstract

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.

Comments

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.

Copyright Owner

Elsevier B.V.

Language

en

File Format

application/pdf

Published Version

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