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Datasheet

Physical Constants

Name Symbol Value Unit
Bohr magneton μB

9.274E-24

4.2544E-6

0.05796

J T-1

Ryd T-1

meV T-1

RE-TM Magnets

Compound TC(K)
Saturation magnetisation (μB/formula unit) Structure Lattice parameters (Å)
YCo5 987 7.52 CaCu5 (hexagonal)

a = 4.935; c= 3.964

GdCo5 1014 1.37

4.973; 3.969

SmCo5 1020 7.3
5.004; 3.969
YFe2 542 2.90 MgCu2 (cubic)

a = 7.363

Data from Buschow, Rep. Prog. Phys. 40, 1179 (1977)