Phys. Rev. B 64, 214420 (2001) [4 pages]Testing renormalization group theory at the critical dimension in LiHoF4Received 2 July 2001; published 13 November 2001 We have performed high-precision specific heat measurements on the Ising dipolar magnet LiHoF4 in the critical regime (reduced temperature |t|≲0.02). Combining these results with existing magnetization M and susceptibility χ data, we test renormalization group predictions at the critical dimension. In particular, the nontrivial prediction that t2χCPTC/M2=1/3 is well verified. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.64.214420
DOI:
10.1103/PhysRevB.64.214420
PACS:
75.40.Cx
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