Table 1. Experimental values used to calculate the spin-power and resulting temperature rate, with the electronic spin relaxation times τ_1e and τ_2e obtained from Rast and Atsarkin [12, 13].

Parameter	Value	Units
γ	1.7608592 × 1011	rad.s−1.T−1
N	3.011 × 1020	number of Gd atoms per ml
ℏ	1.0545717 × 10−34	J.s.rad−1
S	7/2	resultant spin angular momentum
B0	30.6	mT
k	1.3806503 × 10−23	J.K−1
T	310.15	K
τ1e	0.1	ns
τ2e	0.1	ns
B1	1.5	mT
we(ω0)	2.93 × 108	s−1