抄録
All the high-Tc oxide superconducors known to date are copper-based oxides (cuprates) in the layered perovskite crystal structures that contain a planar network of copper and oxygen (CuO2 plane). In searching for possible new superconducting metal oxides without Cu ions, we have examined the layered tetragonal pnictides M4Pn2O (M = Ca, Sr, Ba and Pn = As, Sb, Bi) because their structures are considered as an anti-perovskite with alternate stacking of two kinds of layers; conducting M2Pn2 block layers sandwiched by insulating perovskite-based M2O layers. Compounds were prepared by melting stoichiometric amounts of the components in tantalum tube all sealed under an argon atmosphere. The samples have been characterised by scanning electron microscopy, powder X-ray diffraction (XRD), metallographic examination and electrical resistivity. For these stoichiometric compounds no superconductive transition is observed.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1266-1269 |
| ページ数 | 4 |
| ジャーナル | Physica C: Superconductivity and its Applications |
| 巻 | 372-376 |
| 発行部数 | PART 2 |
| DOI | |
| 出版物ステータス | Published - 2002 8 1 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
これを引用
Search for new superconducting oxides in M4Pn2O phases (M = Ca, Sr, Ba and Pn = As, Sb, Bi). / Artini, C.; Carnasciali, M. M.; Costa, G. A.; Magnone, E.; Mele, Paolo.
：: Physica C: Superconductivity and its Applications, 巻 372-376, 番号 PART 2, 01.08.2002, p. 1266-1269.研究成果: Article
}
TY - JOUR
T1 - Search for new superconducting oxides in M4Pn2O phases (M = Ca, Sr, Ba and Pn = As, Sb, Bi)
AU - Artini, C.
AU - Carnasciali, M. M.
AU - Costa, G. A.
AU - Magnone, E.
AU - Mele, Paolo
PY - 2002/8/1
Y1 - 2002/8/1
N2 - All the high-Tc oxide superconducors known to date are copper-based oxides (cuprates) in the layered perovskite crystal structures that contain a planar network of copper and oxygen (CuO2 plane). In searching for possible new superconducting metal oxides without Cu ions, we have examined the layered tetragonal pnictides M4Pn2O (M = Ca, Sr, Ba and Pn = As, Sb, Bi) because their structures are considered as an anti-perovskite with alternate stacking of two kinds of layers; conducting M2Pn2 block layers sandwiched by insulating perovskite-based M2O layers. Compounds were prepared by melting stoichiometric amounts of the components in tantalum tube all sealed under an argon atmosphere. The samples have been characterised by scanning electron microscopy, powder X-ray diffraction (XRD), metallographic examination and electrical resistivity. For these stoichiometric compounds no superconductive transition is observed.
AB - All the high-Tc oxide superconducors known to date are copper-based oxides (cuprates) in the layered perovskite crystal structures that contain a planar network of copper and oxygen (CuO2 plane). In searching for possible new superconducting metal oxides without Cu ions, we have examined the layered tetragonal pnictides M4Pn2O (M = Ca, Sr, Ba and Pn = As, Sb, Bi) because their structures are considered as an anti-perovskite with alternate stacking of two kinds of layers; conducting M2Pn2 block layers sandwiched by insulating perovskite-based M2O layers. Compounds were prepared by melting stoichiometric amounts of the components in tantalum tube all sealed under an argon atmosphere. The samples have been characterised by scanning electron microscopy, powder X-ray diffraction (XRD), metallographic examination and electrical resistivity. For these stoichiometric compounds no superconductive transition is observed.
KW - Anti-perovskite oxide
KW - HTS multilayers
KW - Pnictides
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=0036682983&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036682983&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(02)00989-9
DO - 10.1016/S0921-4534(02)00989-9
M3 - Article
AN - SCOPUS:0036682983
VL - 372-376
SP - 1266
EP - 1269
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 2
ER -