2010 Fiscal Year Final Research Report
Synthesis and function development of mercury-including pyrochlore-type oxides
| Project/Area Number |
20550135
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Functional materials chemistry
|
|---|
| Research Institution | The Institute of Physical and Chemical Research |
|---|
Principal Investigator |
YAMAMOTO Ayako The Institute of Physical and Chemical Research, 無機電子複雑系研究チーム, 基幹研究所研究員 (50398898)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
OHGUSHI Kenya 東京大学, 物性研究所, 特任講師 (30455331)
HASHIZUME Daisuke 独立行政法人理化学研究所, 物質構造解析チーム, 先任研究員 (00293126)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 遷移金属酸化物 / 水銀含有酸化物 / パイロクロア型構造 / ヘキサゴナルブロンズ構造 / 超伝導 |
|---|
| Research Abstract |
Synthesis and function development of mercury-including pyrochlore-type oxides were studied. We have successfully prepared a new half-metallic compound, Hg_2Ir_2O_7, with pyrochlore-type structure. We have also obtained a new superconductor, Hg_xReO_3 (x=0.4), with hexagonal bronze structure. The superconducting critical temperatures were 8.0 K and 11.1 K at ambient and 4 GPa, respectively.
|
