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Showing 2009 · cond-mat.str-elShow all
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cond-mat.str-el2009★ 29 cited
U(1)-Symmetry breaking and violation of axial symmetry in TlCuCl3 and other insulating spin systems
Raffaele Dell'Amore, Andreas Schilling, Karl Kraemer
We describe the Bose-Einstein condensate of magnetic bosonic quasiparticles in insulating spin systems using a phenomenological standard functional method for T = 0. We show that r…
cond-mat.str-el2009★ 26 cited
Constraint Effective Potential of the Staggered Magnetization in an Antiferromagnet
U. Gerber, C. P. Hofmann, F. -J. Jiang +2
We employ an improved estimator to calculate the constraint effective potential of the staggered magnetization in the spin quantum Heisenberg model using a loop-clus…