Lecture 2: Relaxation (8xx 0 0 1 (1 0 -1 0 0 Syy 0 = 5, 0 1 0 0 -1 0 { o 0 ôzz , [0 0 0 0 V + 5| = |Tr{5} = §(«5XX + <5yy + 5ZZ) <5a = ±Aj = ± (2«5ZZ - (Sxx + 5yy)) (5r = ^r]5A5 = \{8Xx - Syy) v Sxx o o O 5Yy O O O Szz \ I i = 5; \ 10 0 0 10 0 0 1 \ / + 5; / V 1 o o 0 o 1 o O 2 \ / + <5, / \ 1 O O O o -1 o o o \ / + Be — S\Bq f0 O \ + ö3B0 \ ± I í \ \ + SrB0 \ ( 3 sin # cos # cos (/? 3 sin ů cosů sin cp 3 cos2 ů - 1 ) -(2 cos2 x - 1) sin tfcostfcosc/? + 2 sin x cos x sin # sin cp -(2 cos2 x - 1) sin ů cos ů si n

2 J(0) + J(wo) BLOCH EQUATIONS: 6MX -- = -R2MX - QM,7 + sin Mz 6t dM y = +QMa; - i?2My - wi COS dA^ = -wi sin (^Ma; + wi cos (pMy - Ri(Mz - M|q)