Embedded Cluster

Isolated Cluster

Spin (ħ)

Valence orbital spin population

Spin (ħ)

Valence orbital spin population

Ba4Fe5As8

S = 5 / 2

S = 7 / 2

Fe

0.32

4 s 0.01 3 d 0.33

−0.03

4 s 0 3 d 0.04

Fe (n.n.)a

0.07

4 s 0.01 3 d 0.06

0.08

4 s 0.02 3 d 0.08

Fe (n.n.)b

0.65

4 s 0.59 3 d 0.06

−0.01

4 s 0 3 d 0.03

As (n.n.)

0.23

4 s 0.02 4 p 0.21

−0.02

4 s 0.01 4 p 0.04

Ba4Fe4RhAs8

S = 1

S = 2

Rh

−0.05

5 s 0 4 d 0.05 5 p 0

−0.51

5 s 0 4 d 0.84 5 p 0.29

Fe (n.n.)a

0.03

4 s 0.01 3 d 0.02

0.06

4 s 0.11 3 d 0.03

Fe (n.n.)b

0.04

4 s 0.02 3 d 0.02

0.09

4 s 0.02 3 d 0.02

As (n.n.)

0.02

4 s 0 4 p 0.02

0.33

4 s 0 4 p 0.31

Ba4Fe4PdAs8

S = 3 / 2

S = 5 / 2

Pd

−0.04

5 s 0.02 4 d 0.08 5 p 0.02

0.07

5 s 0.01 4 d 0.04 5 p 0.03

Fe (n.n.)a

−0.01

4 s 0.01 3 d 0.02

−0.37

4 s 0.02 3 d 0.34

Fe (n.n.)b

0.96

4 s 0.33 3 d 0.63

0.05

4 s 0 3 d 0.02

As (n.n.)

0

4 s 0 4 p 0

−0.07

4 s 0.01 4 p 0.05