2009 Fiscal Year Final Research Report
Realization of tunneling-spin filter devices using MgO(001) substrates
| Project/Area Number |
20840023
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (Start-up)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | Nagoya Institute of Technology |
|---|
Principal Investigator |
TANAKA Masaaki Nagoya Institute of Technology, 大学院・工学研究科, 助教 (50508405)
|
|---|
| Project Period (FY) |
2008 – 2009
|
| Keywords | スピントロニクス / トンネル型スピンフィルター効果 |
|---|
| Research Abstract |
Tunneling-spin filtering effect of ferromagnetic insulator La_2NiMnO_6 was studied. Magnetoresistance measurements were carried out for magnetic tunnel junctions using Au/La_2NiMnO_6 and ferromagnetic metal La_<0.7>Sr_<0.3>MnO_3 electrodes fabricated on SrTiO_3 (001) substrates. The spin filtering efficiency through La_2NiMnO_6 estimated from the tunnel magnetoresistance ratio was about 9% at 50K and 4% at 110K.
|
