TY - JOUR
T1 - Dynamical specific heat of two-phase coexistence in R MnO3
AU - Nomura, T.
AU - Masuzawa, J.
AU - Katsufuji, T.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - We studied the dynamics of two-phase coexistence in perovskite manganite R MnO3 (R =rare earth) by means of dynamical specific heat measurement. We found that specific heat exhibits a Debye-type frequency dependence around the transition temperature between two different magnetic phases, which can be attributed to the relaxational domain motion between the two phases. We also found that relaxation time (τ) systematically varies with the change of R as well as with an applied magnetic field, and dispersion frequency (1/τ) divergently increases as the system approaches the critical point of the magnetic phases.
AB - We studied the dynamics of two-phase coexistence in perovskite manganite R MnO3 (R =rare earth) by means of dynamical specific heat measurement. We found that specific heat exhibits a Debye-type frequency dependence around the transition temperature between two different magnetic phases, which can be attributed to the relaxational domain motion between the two phases. We also found that relaxation time (τ) systematically varies with the change of R as well as with an applied magnetic field, and dispersion frequency (1/τ) divergently increases as the system approaches the critical point of the magnetic phases.
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U2 - 10.1103/PhysRevB.74.220403
DO - 10.1103/PhysRevB.74.220403
M3 - Article
AN - SCOPUS:33846280099
SN - 1098-0121
VL - 74
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 22
M1 - 220403
ER -