We report an in situ thermochemical treatment that significantly increases the macroscopic electrical conductivity of insulating yttria-stabilized zirconia (YSZ) (001) single-crystalline substrates. We demonstrate the high-quality surface crystalline structure of the resulting “conductive” cYSZ (001) by low- and high-energy electron diffraction. Soft- and hard X-ray photoemission spectroscopy measurements reveal a sizable reduction of Zr cations to a metallic state and their homogeneous distribution within the cYSZ. We discuss the correlation between the microscopic chemical processes leading to the increased macroscopic metallicity. Finally, the heteroepitaxial growth of a functional magnetic oxide model system, ultrathin EuO on cYSZ (001), was demonstrated. cYSZ (001) thereby enables both high quality oxide heteroepitaxy and the advanced sample characterization by high electron-fluence characterization techniques.

1.
A.
Mauger
and
C.
Godart
,
Phys. Rep.
141
,
51
176
(
1986
).
2.
R.
Sutarto
 et al,
Phys. Rev. B
79
,
205318
(
2009
).
3.
R.
Jansen
 et al,
Semicond. Sci. Technol.
27
,
083001
(
2012
).
4.
M.
Müller
 et al,
Europhys. Lett.
88
,
47006
(
2009
);
M.
Müller
 et al,
Appl. Phys. Lett.
98
,
142503
(
2011
).
5.
G.-X.
Miao
,
M.
Müller
 et al,
Phys. Rev. Lett.
102
,
076601
(
2009
);
[PubMed]
G.-X.
Miao
,
M.
Müller
 et al,
Rep. Prog. Phys.
74
,
036501
(
2011
).
6.
C.
Caspers
,
M.
Müller
 et al,
Phys. Rev. B
84
,
205217
(
2011
);
C.
Caspers
,
M.
Müller
 et al,
Phys. Status Solidi RRL
5
,
441
(
2011
).
7.
S. G.
Altendorf
 et al,
Phys. Rev. B
84
,
155442
(
2011
).
8.
I.
Moder
 et al,
Thin Solid Films
531
,
466
470
(
2013
).
9.
V. R. P.
Verneker
 et al,
Phys. Rev. B
40
,
8555
(
1989
).
10.
O. H.
Kwon
 et al,
Solid State Ionics
177
,
3057
3062
(
2006
).
11.
J. H.
Joo
 et al,
Solid State Ionics
177
,
1053
1057
(
2006
).
12.
X.
Guo
 et al,
Sens. Actuators, B
31
,
139
145
(
1996
).
13.
B. C. H.
Steele
and
A.
Heinzel
,
Nature
414
,
345
352
(
2001
).
14.
K.
Kobayashi
 et al,
Solid State Ionics
135
,
643
651
(
2000
).
15.
S. G.
Altendorf
, private communications (
2012
).
16.
S.
Tanuma
 et al,
Surf. Interface Anal.
43
,
689
(
2011
).
17.
A.
Gloskovskii
 et al,
J. Electron Spectrosc.
185
,
47
(
2012
).
18.
P. G.
Steeneken
 et al,
Phys. Rev. Lett.
88
,
047201
(
2002
).
You do not currently have access to this content.