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INTRO FISICA MODERNA FULL.pdf - Cosmofisica

INTRO FISICA MODERNA FULL.pdf - Cosmofisica

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139Figura. Suma de momentos angulares y momentos dipolares magnéticos.μjr r r rr r μ ⋅ J´μ ⋅ J´= μ ⋅ cos( μ,J´)= −μr = − rμ J´J´r rr ⋅ J´rμj= −μ J´2J´rr r r μB⋅ J´rμj= −( L´ + 2S´) J´2J´hr r r rrB⋅ L´+ 2S´⋅ L´+ S´μj= −μJ´h( ) ( ) r´2JrμjB= −μhr r r r2 2( L´+ 2S´+ 3L´⋅S´) r´rμ = −gjjJ´μBh2rJ´Jg j= 1+j´(j´+ 1) + s´(s´+ 1) − l´(l´+ 1)2 j´(j´+ 1)Entonces, en presencia de un campo magnéticor rΔ E = −μ⋅Δ E = μ gBjB extjmjBextEjercicio. En la configuración 2p3s calcule el g de Landé correspondiente al estado 3 P 1 ydesdoble el sistema por la presencia de un campo magnético externo.

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