Tb_x

Annealing

temperature (˚C)

M_s

(emu/g)

H_c

(KOe)

M_r/M_s

(BH)_max

(MGOe)

x = 0

675

141.3

0.99

0.42

0.82

687

149.5

1.05

0.48

1.13

700

190.8

1.06

0.61

2.55

712

136.1

0.58

0.33

0.00

725

173.3

0.18

0.25

0.00

x = 0.2

675

142.1

0.96

0.35

0.38

687

134.3

1.50

0.47

1.25

700

156.5

2.24

0.63

4.84

712

151

1.90

0.65

4.14

725

152.4

0.24

0.36

0.00

x = 0.4

675

129.4

1.06

0.42

0.88

687

140.6

1.54

0.57

2.18

700

211.4

1.34

0.49

2.43

712

124.7

1.09

0.47

0.91

725

151.5

0.56

0.37

0.41

x = 0.6

675

150.6

1.29

0.55

2.07

687

146.3

0.82

0.44

0.62

700

180.9

1.35

0.55

2.23

712

151.4

0.89

0.46

1.01

725

157.9

0.29

0.29

0.00

x = 0.8

675

147.7

1.59

0.46

1.81

687

135.7

1.71

0.58

2.33

700

176.9

2.36

0.66

6.11

712

93.3

1.35

0.43

0.80

725

141.2

0.62

0.34

0.45

x = 1

675

166.3

0.63

0.49

1.12

687

142.4

0.57

0.47

0.08

700

204.4

0.77

0.53

1.49

712

179.5

0.51

0.38

0.61

725

165.8

0.40

0.36

0.17