Chemistry Reference
In-Depth Information
Γ(s
−1
)
10
7
Mn
12
Ε
t
/
k
B
= 150
K
10
5
10
3
10
1
10
-1
10
-3
10
-5
T
= 0 K
T
= 1 K
T
= 2 K
10
-7
10
-9
h
x
= 0.2 (1.63 T)
Relaxation from the
metastable state
10
-11
10
-13
0.49 T
10
-15
10
-17
0
1
2
3
4
5
6
7
8
g
μ
Β
H
z
/(
D+BS
2
)
Figure 6.
Escape rate versus bias field in Mn
12
at different temperatures. (See insert for color
representation of the figure.)
Γ(s
−1
)
10
7
10
5
10
3
10
1
10
-1
10
-3
h
x
= 0.2,
k
= 1
10
-5
10
-7
h
x
= 0.2,
k
= 1.006
Mn
12
Ε
t
/
k
B
= 150
K
10
-9
10
-11
h
x
= 0.2,
k
= 1.5
g
μ
Β
H
z
/(
D+BS
2
)
=
k
10
-13
0.0
0.5
1.0
1.5
2.0
1
/T
Figure 7.
Temperature dependence of the escape rate in Mn
12
.
