抄録
In La1.9-itxGd0.1SrxCuO4, a prominent change of the thermoelectric power S below ∼80K is observed in a narrow region of x around 0.12 although the structural phase transition to the tetragonal low-temperature (TLT) phase is observed at ∼ 115K in a wide region of x. These results suggest that the anomalous behaviors of the transport properties below ∼80K are responsible for the change of the electronic state itself. In La1.875-yGdySr0.125CuO4, Tuittdβ, which is the structural phase transition temperature to the TLT pahse, increases with increasing y. The temperature where S begins to decrease rapidly is close to Tudβ in y≤0.04. In y≥0.05, a prominent change of S is observed below a lower temperature than Tudβ and an obvious sign reversal of S appears appears at ∼40K. These results indicate that the change of the electronic state is enhanced in the TLT phase.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1315-1316 |
| ページ数 | 2 |
| ジャーナル | Physica C: Superconductivity and its Applications |
| 巻 | 235-240 |
| 発行部数 | PART 2 |
| DOI | |
| 出版物ステータス | Published - 1994 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
これを引用
Transport properties and low temperature structural phase transition around x=0.125 in La2-x-yREySrxCuO4 (RENd, Sm, Gd, Tb). / Suzuki, Takao; Sera, M.; Fukase, T.
：: Physica C: Superconductivity and its Applications, 巻 235-240, 番号 PART 2, 1994, p. 1315-1316.研究成果: Article
}
TY - JOUR
T1 - Transport properties and low temperature structural phase transition around x=0.125 in La2-x-yREySrxCuO4 (RENd, Sm, Gd, Tb)
AU - Suzuki, Takao
AU - Sera, M.
AU - Fukase, T.
PY - 1994
Y1 - 1994
N2 - In La1.9-itxGd0.1SrxCuO4, a prominent change of the thermoelectric power S below ∼80K is observed in a narrow region of x around 0.12 although the structural phase transition to the tetragonal low-temperature (TLT) phase is observed at ∼ 115K in a wide region of x. These results suggest that the anomalous behaviors of the transport properties below ∼80K are responsible for the change of the electronic state itself. In La1.875-yGdySr0.125CuO4, Tuittdβ, which is the structural phase transition temperature to the TLT pahse, increases with increasing y. The temperature where S begins to decrease rapidly is close to Tudβ in y≤0.04. In y≥0.05, a prominent change of S is observed below a lower temperature than Tudβ and an obvious sign reversal of S appears appears at ∼40K. These results indicate that the change of the electronic state is enhanced in the TLT phase.
AB - In La1.9-itxGd0.1SrxCuO4, a prominent change of the thermoelectric power S below ∼80K is observed in a narrow region of x around 0.12 although the structural phase transition to the tetragonal low-temperature (TLT) phase is observed at ∼ 115K in a wide region of x. These results suggest that the anomalous behaviors of the transport properties below ∼80K are responsible for the change of the electronic state itself. In La1.875-yGdySr0.125CuO4, Tuittdβ, which is the structural phase transition temperature to the TLT pahse, increases with increasing y. The temperature where S begins to decrease rapidly is close to Tudβ in y≤0.04. In y≥0.05, a prominent change of S is observed below a lower temperature than Tudβ and an obvious sign reversal of S appears appears at ∼40K. These results indicate that the change of the electronic state is enhanced in the TLT phase.
UR - http://www.scopus.com/inward/record.url?scp=4243304265&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4243304265&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(94)91882-1
DO - 10.1016/0921-4534(94)91882-1
M3 - Article
AN - SCOPUS:4243304265
VL - 235-240
SP - 1315
EP - 1316
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 2
ER -