Method of synthesis

SG

CC

MS

SP

Sample

LM

LSM

LM

LSM

LM

LSM

LM

LSM

La, % at.

20.8

12.7

18.9

16.4

19.3

17.4

18.5

15.8

Mn, % at.

10.0

12.8

11.3

11.9

10.2

11.8

12.0

13.4

share of Mn4+/Mn, %

25.4

25.8

23.9

24.1

14.2

41.4

17.7

21.7

Sr, % at.

-

2.8

-

2.6

-

2.3

-

4.3

O, % at.

56.6

59.0

59.2

57.2

58.7

56.5

56.4

58.9

C, % at.

12.6

12.7

10.6

11.9

11.8

12.0

13.1

7.6

La:Mn

T

1:1

0.8:1

1:1

0.8:1

1:1

0.8:1

1:1

0.8:1

E

2.1:1

1:1

1.7:1

1.4:1

1.9:1

1.5:1

1.5:1

1.2:1

La:Sr

T

-

4:1

-

4:1

-

4:1

-

4:1

E

-

4.5:1

-

6.3:1

-

7.6:1

-

3.7:1