1. Colossal Magnetoresistance.
Superconductivity
Colossal Magnetoresistance
Magnetism
Functional oxides
Multiferroicity
Photoconductivity 1

2. Physics of interfaces

3. .
LaAlO3
SrTiO3 3

4. Insulator + Insulator = Metal
LaAlO3/SrTiO3  interface
LAO and STO are band-gap insulators. .
Insulator + Insulator = Metal 4

5. Comparison between different interfaces
Sample
Thin Film
Thickness (uc)
PO2
(mbar)
T (C ͦ)
14-43
c-AlO\STO 4
1x10-4
600
14-52
550
14-73
3x10-2
700
Sample
Thin Film
Thickness (uc)
PO2
(mbar)
T (C ͦ)
14-40
c-LGO\STO 50
3x10-2
700
14-53 10
14-54

6. Field Effect experiment
Current generator-238 I+ I-
I-238 V+ V-
V-182
LaAlO3
SrTiO3
Gate Vg
Sample
Thin Film
Thickness (uc)
PO2
(mbar)
T (C ͦ)
13-59
c-LAO\STO (110) 10
1x10-3
700 A
Picoammeter-6487

8. Field Effect experiment
c-LAO\STO (110)

9. Photoconductivity
Eg = ~3.2 eV