Association

Table A.2.: Cubic oxides as substrate: lattice parameters and strain with EuO. Negative strain is compressive for EuO, while positive strain is
tensile. For LaAlO 3 , the hexagonal lattice parameter is used; and for YAlO 3 , the pseudocubic cell is used. EuO and substrates used in this
work are shaded. The substrates are sorted by increasing lateral strain.
oxide
orientation
EuO
(001)
SrTiO3
STO(001)
MgO
(001)
CaO
(001)
12%Sn:In2O3
ITO(001)
9%Y:ZrO2
YSZ(001)
YAlO3 LaAlO3
(110) ∗ LAO(100)
Si
(001)
CaF2
(001)
SrTiO3
STO(110)
linear lattice expansion, aT + Δa = aT 0
(1 + αΔT)
α (10 -6 K −1 )
in plane, RT
13 9 14 28 10.2 9.2 8.1 10 2.6 18.7 9
cubic lattice parameter a = aT
a750 K (nm)
“MBE growth”
a300 K (nm)
“RT”
a77 K (nm)
“LN2”
a2K(nm)
“LHe”
0.5172 0.3917 0.4239 0.4872 1.0178 0.514
0.5142 0.3901 0.4212 0.4811 1.0131 0.512
0.5127 0.3893 0.4199 0.4781 1.0108 0.511
0.5122 0.3890 0.4194 0.4771 1.0100 0.510
0.7458 in [1¯10]
0.7398 in [001]
0.7431 in [1¯10]
0.7371 in [001]
0.7418 in [1¯10]
0.7358 in [001]
0.7413 in [1¯10]
0.7358 in [001]
0.5381 0.5436 0.5517
0.5357 0.5431 0.5471
0.5345 0.5428 0.5448
0.5341 0.5426 0.5440
0.5545 ×
0.3917
0.5523 ×
0.3901
0.5512 ×
0.3893
0.5508 ×
0.3890
strain m = a S−a F
a F
m750 K
“MBE growth”
m300 K
“RT”
m77 K
“LN2”
m2K
“LHe”
— −24.27% −18.04% −5.80% −1.60% −0.62%
— −24.13% −18.08% −6.43% −1.49% −0.43%
— −24.07% −18.10% −6.75% −1.42% −0.33%
— −24.05% −18.12% −6.85% −1.40% −0.43%
+1.96% in [1¯10]
+1.14% in [001]
+2.19% in [1¯10]
+1.36% in [001]
+2.32% in [1¯10]
+1.48% in [001]
+2.34% in [1¯10]
+1.51% in [001]
+4.04% +5.10% +6.67% +7.21% ×
−24.27%
+4.18% +5.62% +6.40% +7.40% ×
−24.13%
+4.25% +5.87% +6.26% +7.51% ×
−24.07%
+4.28% +5.94% +6.21% +7.54% ×
−24.05%
∗) the epitaxial relation between EuO (001) and YAlO3 (110) is 45 ◦ rotated in plane, as illustrated nicely in Ulbricht et al. (2008) 25,186 .
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