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Y and Ikeda (Ref.) also observe diffraction at half-integer values of qz but seem not to realize that this corresponds to a doubling of the unit cell
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Y and Ikeda (Ref.) also observe diffraction at half-integer values of q z but seem not to realize that this corresponds to a doubling of the unit cell.
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arXiv:0812.3575 (unpublished). However here the degeneration line was not treated correctly
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See arXiv:0812.3575 (unpublished). However here the degeneration line was not treated correctly.
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We thank for discussions on this point
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We thank B. Campbell and H. Stokes for discussions on this point.
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In the presence of an interactions between sites 1 and 2 within the same unit cell, the form of Λ is Λ= Λ0 +Aρ, where Λ0 and A are constants. The presence of a term linear in ρ guarantees that the X line is unstable
-
In the presence of an interactions between sites 1 and 2 within the same unit cell, the form of Λ is Λ = Λ 0 + A ρ, where Λ 0 and A are constants. The presence of a term linear in ρ guarantees that the X line is unstable.
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27
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77955183086
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The values for the U 's are deceptively small because when σ 's are equal to 1, they represent the interaction between two effective charges e/2, the difference between the local charge and the average valence charge
-
The values for the U 's are deceptively small because when σ 's are equal to 1, they represent the interaction between two effective charges e / 2, the difference between the local charge and the average valence charge.
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28
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77955214585
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Our ρ is related to Y's δ by δ=4πρ/3. Y gives δ=0.0081
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Our ρ is related to Y's δ by δ = 4 π ρ / 3. Y gives δ = 0.0081.
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note
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C. Broholm and D. Reich have pointed out to us that the U 's will show a temperature dependence because of the temperature dependence of the dielectric constant. That is certainly the case near or below 200 and may be quite relevant for the nature of the transition near 170 K. However, the amplitude of the zigzag pattern of diffraction guarantees that screening is very strong near and above the CO transition and there is no evidence that the temperature dependence of the dielectric constant causes the crossover from FI to AFI fluctuations near T CO where the dielectric constant is large.
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77955194556
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- and we would have to introduce an ad hoc temperature dependence to Δ.
-
- and we would have to introduce an ad hoc temperature dependence to Δ.
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77955185306
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note
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] 6 which gives a positive value for w.
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40
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77955207471
-
-
note
-
Contrary to the statement in Ref. that the above analysis (assuming w < 0) "results in a ferrimagnetic structure as shown in Fig...., " one can only get a nonzero net moment from a nonzero ordering at zero wave vector, as is done here.
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41
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77955217515
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private communication
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M. Angst (private communication).
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77955184551
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note
-
In Fig. 4d of Ref. one sees the intensity of a ninth overtone, whose critical exponent within mean-field theory would be 9 β. The data is obviously not sensitive enough to test this prediction of the exponent.
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45
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77955188739
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D. Singh has suggested that this possibility often happens in systems with rather large spin (private communication)
-
D. Singh has suggested that this possibility often happens in systems with rather large spin (private communication).
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