TY - JOUR
T1 - Structure-property coupling in Sr3(Ru1-xMn x)2O7
AU - Hu, Biao
AU - McCandless, Gregory T.
AU - Garlea, V. O.
AU - Stadler, S.
AU - Xiong, Yimin
AU - Chan, Julia Y.
AU - Plummer, E. W.
AU - Jin, R.
PY - 2011/11/11
Y1 - 2011/11/11
N2 - Layered ruthenates are prototype materials for the study of structure-property correlations. We report the structural and physical properties of double-layered perovskite Sr3(Ru1-xMn x)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 the disappearance of (Ru/Mn)O6 octahedron rotation when x 0.16, but the crystal structure remains tetragonal. Upon doping, the electrical resistivity reveals a metallic character (dρ/dT 0) at high temperatures but insulating behavior (dρ/dT<0) below a characteristic temperature TMIT. Interestingly, TMIT is different from TM, at which magnetic susceptibility reaches maximum. While TMIT increases monotonically with increasing x,TM displays a nonmonotonic dependence with x even though the effective spin increases from S∼1 (x=0) to ∼3/2 (x=0.7). The phase diagram consists of three distinct magnetic ground states due to local structure change.
AB - Layered ruthenates are prototype materials for the study of structure-property correlations. We report the structural and physical properties of double-layered perovskite Sr3(Ru1-xMn x)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 the disappearance of (Ru/Mn)O6 octahedron rotation when x 0.16, but the crystal structure remains tetragonal. Upon doping, the electrical resistivity reveals a metallic character (dρ/dT 0) at high temperatures but insulating behavior (dρ/dT<0) below a characteristic temperature TMIT. Interestingly, TMIT is different from TM, at which magnetic susceptibility reaches maximum. While TMIT increases monotonically with increasing x,TM displays a nonmonotonic dependence with x even though the effective spin increases from S∼1 (x=0) to ∼3/2 (x=0.7). The phase diagram consists of three distinct magnetic ground states due to local structure change.
UR - http://www.scopus.com/inward/record.url?scp=82455181464&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.84.174411
DO - 10.1103/PhysRevB.84.174411
M3 - Article
AN - SCOPUS:82455181464
SN - 1098-0121
VL - 84
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 17
M1 - 174411
ER -