TY - JOUR
T1 - Thermal transport in the oxygenated magnetic superconductor, Eu1.5Ce0.5RuSr2Cu2O10+δ
AU - Hennings, B. D.
AU - Rathnayaka, K. D.D.
AU - Naugle, D. G.
AU - Felner, I.
PY - 2002/5
Y1 - 2002/5
N2 - The thermal conductivity and thermopower are reported for a hole doped Eu1.5Ce0.5RuSr2Cu2O10+δ sample that has been annealed at 1100 K under an oxygen pressure of 54 atm. At Tc = 45 K superconductivity and weak ferromagnetism coexist (Tm = 180 K). Weak features in the thermopower, S(T), and thermal conductivity, κ(T), are observed both at Tm and at T* = 140 K. The thermopower begins to decrease sharply toward zero at Tc, and there is an extremely sharp increase of about 30% in the thermal conductivity at Tc. This "first order" transition may be related to the sudden appearance of a spontaneous vortex phase at Tc. A small shoulder is observed in κ(T) in the temperature range T = 5-13 K.
AB - The thermal conductivity and thermopower are reported for a hole doped Eu1.5Ce0.5RuSr2Cu2O10+δ sample that has been annealed at 1100 K under an oxygen pressure of 54 atm. At Tc = 45 K superconductivity and weak ferromagnetism coexist (Tm = 180 K). Weak features in the thermopower, S(T), and thermal conductivity, κ(T), are observed both at Tm and at T* = 140 K. The thermopower begins to decrease sharply toward zero at Tc, and there is an extremely sharp increase of about 30% in the thermal conductivity at Tc. This "first order" transition may be related to the sudden appearance of a spontaneous vortex phase at Tc. A small shoulder is observed in κ(T) in the temperature range T = 5-13 K.
KW - Coexistence of superconductivity and magnetism
KW - Magnetism
KW - Ru-2122 compounds
KW - Spontaneous vortex state
KW - Transport properties
UR - https://www.scopus.com/pages/publications/0036569721
U2 - 10.1016/S0921-4534(01)00955-8
DO - 10.1016/S0921-4534(01)00955-8
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AN - SCOPUS:0036569721
SN - 0921-4534
VL - 370
SP - 253
EP - 258
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - 4
ER -