Abstract
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.
| Original language | English |
|---|---|
| Article number | 220403 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 74 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 2006 |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Dynamical specific heat of two-phase coexistence in R MnO3. / Nomura, T.; Masuzawa, J.; Katsufuji, Takuro.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 74, No. 22, 220403, 2006.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dynamical specific heat of two-phase coexistence in R MnO3
AU - Nomura, T.
AU - Masuzawa, J.
AU - Katsufuji, Takuro
PY - 2006
Y1 - 2006
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.
UR - http://www.scopus.com/inward/record.url?scp=33846280099&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846280099&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.74.220403
DO - 10.1103/PhysRevB.74.220403
M3 - Article
VL - 74
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 22
M1 - 220403
ER -