TY - JOUR
T1 - Impurity-induced ferromagnetism and impurity states in Nd 1/2(Mn0.95M0.05)O3
AU - Moritomo, Y.
AU - Murakami, K.
AU - Ishikawa, H.
AU - Hanawa, M.
AU - Nakamura, A.
AU - Ohoyama, K.
PY - 2004/6/1
Y1 - 2004/6/1
N2 - Impurity effects on the lattice structure and the electronic state are investigated for B-site substituted half-doped manganites Nd 1/2Ca1/2(Mn0.95M0.05)O3 (M is the 3d and 4d transition metals). We investigated the interrelation between the impurity-induced ferromagnetism and (1) the lattice structure (chemical pressure effect), (2) the magnitude of the impurity spin, and (3) the density of state (DOS) of the impurity d state at the Fermi level EF. We found a strong correlation between the ferromagnetism and the DOS of the impurity state at EF, suggesting that the ferromagnetism can be ascribed to the enhanced one-electron bandwidth of the Mn 3d-M d hybridized band.
AB - Impurity effects on the lattice structure and the electronic state are investigated for B-site substituted half-doped manganites Nd 1/2Ca1/2(Mn0.95M0.05)O3 (M is the 3d and 4d transition metals). We investigated the interrelation between the impurity-induced ferromagnetism and (1) the lattice structure (chemical pressure effect), (2) the magnitude of the impurity spin, and (3) the density of state (DOS) of the impurity d state at the Fermi level EF. We found a strong correlation between the ferromagnetism and the DOS of the impurity state at EF, suggesting that the ferromagnetism can be ascribed to the enhanced one-electron bandwidth of the Mn 3d-M d hybridized band.
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U2 - 10.1103/PhysRevB.69.212407
DO - 10.1103/PhysRevB.69.212407
M3 - Article
AN - SCOPUS:42749102173
VL - 69
SP - 212407-1-212407-4
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 21
M1 - 212407
ER -