Partition function 2 Flashcards
(10 cards)
1
Q
What is the spin degeneracy of each energy level of a particle?
A
2S+1
2
Q
What is the spin for an electron?
A
S=1/2
3
Q
How is degeneracy accounted for in the partition function?
A
Z=Σg(Ei)e-βEi
4
Q
What is the degeneracy function?
A
g(Ei)
5
Q
How do partition functions combine?
A
ZTOT=ZaZb
6
Q
How do contributions of U,F,S etc combine?
A
UTOT=Ua+Ub…
etc
7
Q
What is the N-particle partition function?
A
ZN=(Z1)N
8
Q
What is the first law for a magnetic system?
A
dU=TdS-mdB
Where m is the magnetic moment
9
Q
What are the possible configurations of a paramagnet?
A
All moments up and m=NμB
Half up and half down
m=0
10
Q
What is the magnetisation?
A
M=m/V
