All Questions
6
questions
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48
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Analytic methods for studying thin films (approximately 2D spin systems)
I am working on a project involving thin films of a magnetic material represented by essentially an Ising model on a 3 dimensional lattice. The bulk case is relatively straight forward, the ...
3
votes
2
answers
484
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Fermi "surface" at finite temperature and its measurement in the lab
As we increase the temperature, we know the sharp Fermi surface at zero temperature becomes smeared out at finite temperature $T>0$. (Just think of the Fermi-Dirac distribution, there will be no ...
user32229
2
votes
0
answers
333
views
The ground state of AFM Heisenberg model $H=+J\displaystyle \sum_{\langle i,j\rangle} \vec{S}_i \cdot \vec{S}_j$ on the triangular lattice?
What is the order -- the ground state of AFM Heisenberg model $H=+J\displaystyle \sum_{\langle i,j\rangle}\vec{S}_i \cdot \vec{S}_j$ on the triangular lattice, with $J>0$ and nearest neighbor ...
user32229
0
votes
1
answer
130
views
What kind of spin liquids is the Herbertsmithite?
What kind of spin liquids the Herbertsmithite is? Roughly it is a spin-1/2 Heisenberg model on the Kagome lattice with a coupling $J>0$.
It seems that there are long mismatches between the theory, ...
user32229
8
votes
1
answer
3k
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Spin ice / spin liquid v.s. quantum spin ice / quantum spin liquid
What are the distinguishment between (1) spin ice, (2) spin liquid and (3) quantum spin ice, (4) quantum spin liquid?
Apparently the quantum effect for the later (3) and (4) becomes important. But ...
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15
votes
1
answer
4k
views
What is the difference between spin glass and spin liquid?
What is the difference between spin glass and spin liquid?
Do they both originate from frustration?
user16064