J. Phys. IV France
Volume 12, Numéro 9, November 2002
Page(s) 91 - 92

J. Phys. IV France
12 (2002) Pr9-91
DOI: 10.1051/jp4:20020366

Quasi-one-dimensional BalrO 3: On the verge of a weak ferromagnetic metallic state

G. Cao, G. Shaw and J.W. Brill

Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506-0055, U.S.A.

We report on calorimetric, resistivity, and magnetization measurements on single crystal BalrO 3 and its derivatives. All results indicate a phase transition at $\rm T_c$=175 K, and two additional features are observed in resistivity: a sharp peak at 80 K and an upturn at 26 K. It is found that dilute impurity doping with Sr drastically suppresses $\rm T_c$ and leads to an instant nonmetal to metal transition below $\rm T_c$ underlining the instability of the ground state.

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