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Volumn 59, Issue 5, 1999, Pages 3896-3901

Calculation of the field and temperature dependence of the c-axis plasmon in (formula presented)

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EID: 4243849921     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.3896     Document Type: Article
Times cited : (5)

References (31)
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    • Phys. Rev. Lett.Y. Matsuda, et al., 78, 1972 (1997).
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    • Matsuda, Y.1
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    • 0000259146 scopus 로고    scopus 로고
    • ) and references cited therein
    • J. Hu and A. H. MacDonald, Phys. Rev. B 56, 2788 (1997) and references cited therein.
    • (1997) Phys. Rev. B , vol.56 , pp. 2788
    • Hu, J.1    MacDonald, A.H.2
  • 20
    • 85038305409 scopus 로고    scopus 로고
    • (Formula presented) has previously been determined for a clean lattice using the criterion that the helicity modulus component (Formula presented) i.e., the z component of the superfluid density, should vanish at (Formula presented) (Ref. 7). As shown in that paper, the sharp Bragg spots of the vortex lattice also vanish at this same temperature in a clean lattice. The transverse components of the helicity modulus tensor are zero even in the solid phase of the clean lattice, because, in the absence of pinning, the lattice can slide freely in the (Formula presented) plane
    • (Formula presented) has previously been determined for a clean lattice using the criterion that the helicity modulus component (Formula presented) i.e., the z component of the superfluid density, should vanish at (Formula presented) (Ref. 7). As shown in that paper, the sharp Bragg spots of the vortex lattice also vanish at this same temperature in a clean lattice. The transverse components of the helicity modulus tensor are zero even in the solid phase of the clean lattice, because, in the absence of pinning, the lattice can slide freely in the (Formula presented) plane.
  • 27
    • 85038292000 scopus 로고    scopus 로고
    • We briefly discuss the numerical uncertainties in the values of (Formula presented) calculated in the liquid state. First, in the clean system, the statistical uncertainties arising from the Monte Carlo procedure, at any given temperature, are probably less than 10% even in the liquid state—that is, an extremely long Monte Carlo run on a system of the same size would give a number within 10% of the value shown in the graph. The statistical uncertainties in the disordered system are not much larger than this for any given realization; the seemingly large uncertainties are mostly due to the variation in (Formula presented) from one realization to another in our rather small system. Thus, our numerical results indicate with a high degree of certainty that (Formula presented) is nonzero in much of the liquid phase, for both clean samples and samples with random columnar disorder
    • We briefly discuss the numerical uncertainties in the values of (Formula presented) calculated in the liquid state. First, in the clean system, the statistical uncertainties arising from the Monte Carlo procedure, at any given temperature, are probably less than 10% even in the liquid state—that is, an extremely long Monte Carlo run on a system of the same size would give a number within 10% of the value shown in the graph. The statistical uncertainties in the disordered system are not much larger than this for any given realization; the seemingly large uncertainties are mostly due to the variation in (Formula presented) from one realization to another in our rather small system. Thus, our numerical results indicate with a high degree of certainty that (Formula presented) is nonzero in much of the liquid phase, for both clean samples and samples with random columnar disorder.
  • 28


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