Abstract

Single crystals of (Eu1-xBax)O have been grown in a molten barium-magnesium metal flux at temperatures up to 1000 °C, producing single crystals of (Eu1-xBax)O with barium doping levels ranging from x=0.03 to x=0.25. Magnetic measurements show that the ferromagnetic Curie temperature TC correlates with the Ba doping levels, and a modified Heisenberg model was used to describe the stoichiometry dependence of TC. Extrapolation of the results indicates that a sample with Ba concentration of x=0.72 should have a TC of 0 K, potentially producing a quantum phase transition in this material.

Document Type

Article

DOI

https://doi.org/10.1103/physrevb.95.014407

Rights Information

© 2017 American Physical Society

Publication Date

2017

Journal Title

Physical Review B

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