Suppression of An Antiferromagnetic Insulating Phase in Sr$_{3}$(Ru$_{1-x}$Mn$_{x})_{2}$O$_{7}$ by Magnetic Field

ORAL

Abstract

Double-layered Sr$_{3}$Ru$_{2}$O$_{7 }$is a paramagnetic metal. The partial substitution of Mn for Ru results in metal-insulator transition at T$_{MIT}$ and antiferromagnetic ordering at T$_{M}$ in Sr$_{3}$(Ru$_{1-x}$Mn$_{x})_{2}$O$_{7. }$Interestingly, both T$_{MIT}$ and T$_{M}$ can be easily suppressed by the application of magnetic field, especially for low-doping compounds (x $<$ 0.1). This behavior can be explained as Mn-doping-induced antiferromagnetic-insulating domains below T$_{MIT}$. The application of magnetic field suppresses the antiferromagnetic coupling, thus converting the insulating domains back to metallic.

–

Authors

  • Biao Hu

    Louisiana State University, Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, Dept. of Physics, Louisiana State University, Baton Rouge, LA 70802

  • E.W. Plummer

    Louisiana State University, Louisiana State University, Baton Rouge, LA 70803, USA, Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, Dept. of Physics, Louisiana State University, Baton Rouge, LA 70802

  • Rongying Jin

    Louisiana State University, Louisiana State University, Baton Rouge, LA 70803, USA, Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, Dept. of Physics, Louisiana State University, Baton Rouge, LA 70802