TY - JOUR
T1 - Enhanced specific heat jump in electron-doped CaMnO3
T2 - Spin ordering driven by charge separation
AU - Moritomo, Y.
AU - Machida, A.
AU - Nishibori, E.
AU - Takata, M.
AU - Sakata, M.
PY - 2001/12/1
Y1 - 2001/12/1
N2 - Temperature variation of the magnetic susceptibility χ, resistivity ρ, specific heat C, and lattice constants has been investigated in electron-doped CaMnO3. The parent CaMnO3 is an antiferromagnetic band insulator, and shows an insulator-metal crossover with electron doping, together with an enhanced ferromagnetic component. We have found an enhancement of the specific heat jump AC at the spin-ordering temperature Tspin and interpreted the enhancement in terms of the intrinsic charge separation.
AB - Temperature variation of the magnetic susceptibility χ, resistivity ρ, specific heat C, and lattice constants has been investigated in electron-doped CaMnO3. The parent CaMnO3 is an antiferromagnetic band insulator, and shows an insulator-metal crossover with electron doping, together with an enhanced ferromagnetic component. We have found an enhancement of the specific heat jump AC at the spin-ordering temperature Tspin and interpreted the enhancement in terms of the intrinsic charge separation.
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M3 - Article
AN - SCOPUS:0035577191
SN - 0163-1829
VL - 64
SP - 2144091
EP - 2144095
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 21
M1 - 214409
ER -