Evolution of Structural and Physical Properties of Sr3(Ru1-xMnx)2O7 with Mn Concentration

Abstract

Layered ruthenates are prototype materials with strong structure-property correlations. We report the structural and physical properties of double-layered perovskite Sr3(Ru1-xMnx)2O7 single crystals with 0<=x<=0.7. Single crystal x-ray diffraction refinements reveal that Mn doping on the Ru site leads to the shrinkage of unit-cell volume and disappearance of (Ru/Mn)O6 octahedron rotation when x>0.16, while the crystal structure remains tetragonal. Correspondingly, the electric and magnetic properties change with x. The electrical resistivity reveals metallic character (d rho/d T>0) at high temperatures but insulating behavior (d rho/d T<0) below a characteristic temperature T_MIT. Interestingly, T_MIT is different from T_M, at which magnetic susceptibility reaches maximum. T_MIT monotonically increases with increasing x while T_M shows non-monotonic dependence with x. The difference between T_MIT and T_M (T_MIT>T_M) becomes larger when x>0.16. The constructed phase diagram consists of five distinct regions, demonstrating that the physical properties of such a system can easily be tuned by chemical doping.

5 pages, 4 figures

References in corpus (7)

• Magnetic Phase Diagram of Ca2-xSrxRuO4 Governed by Structural Distortions
• Impurity-induced transition to a Mott insulator in Sr${}_3$Ru${}_2$O${}_7$
• Crystal-field level inversion in lightly Mn-doped Sr3Ru2O7
• Surface and Bulk Structural Properties of Single Crystalline Sr3Ru2O7
• Temperature dependent bilayer ferromagnetism in Sr3Ru2O7
• Doping and dimensionality effects on the core-level spectra of layered ruthenates
• Ca3(Ru1-xCrx)2O7: A new paradigm for spin valves

Cited by in corpus (10)

• Structural transitions, octahedral rotations, and electronic properties of $A_3$Ni${}_2$O${}_7$ rare-earth nickelates under high pressure
• Half-metallic ferromagnetism in Sr${}_3$Ru${}_2$O${}_7$
• Mott versus Slater-type metal-insulator transition in Mn-substituted Sr3Ru2O7
• Emergent charge order near the doping-induced Mott-insulating quantum phase transition in Sr${}_3$Ru${}_2$O${}_7$
• Electronic superlattice revealed by resonant scattering from random impurities in Sr3Ru2O7
• Competing magnetic orders in quantum critical Sr${}_3$Ru${}_2$O${}_7$
• Tipping the magnetic instability in paramagnetic Sr${}_3$Ru${}_2$O${}_7$ by Fe impurities
• Hidden Phases Revealed at the Surface of Double-Layered Sr3(Ru1-xMnx)2O7
• Structural and magnetic field effects on spin fluctuations in Sr${}_3$Ru${}_2$O${}_7$
• Mn-induced magnetic symmetry breaking and its correlation with the metal-insulator transition in bilayered Sr3(Ru1-xMnx)2O7