Table 1 List of representative samples prepared in this study.

From: Emergence of superconductivity in (NH3)yMxMoSe2 (M: Li, Na and K)

M

x

T c

T c onset

r ion

(nominal value)

(K)

(K)

(Å)

Na

0.3

5.0

6.0

1.02

Na

0.5

4.8

6.0

1.02

Na

0.5

5.0

6.0

1.02

Na

0.6

4.7

6.0

1.02

Na

0.6

4.7

6.0

1.02

Na

0.8

5.0

6.0

1.02

Na

0.8

5.0

6.0

1.02

Na

1.0

4.7

6.0

1.02

Li

0.5

5.0

6.5

0.76

K

0.5

5.3

7.5

1.38

Sr

0.2

5.0

7.0

1.18