2003/04/03 by Marcelo M. Leite · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum many-body systems #Theoretical and Computational Physics #cond-mat.stat-mech #hep-th
paper · pdf · doi:10.1103/physrevb.68.052408
8 pages, RevTex, accepted as a Brief Report in Physical Review B
arxiv created 2003/04/03 · openalex publication_date 2003/08/29 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We determine the specific-heat amplitude ratio near a m-axial Lifshitz point and show its universal character. Using a recent renormalization group picture along with field-theoretical \ensuremathεL-expansion techniques, we established this amplitude ratio at the one-loop order. We estimate the numerical value of this amplitude ratio for m=1 and d=3. The result is in very good agreement with its experimental measurement on the magnetic material MnP. It is shown that in the limit \stackrel\ensuremath→m0 it trivially reduces to the Ising-like amplitude ratio.