Generic non-Fermi-liquid behavior of the resistivity in magnets with ferromagnetic, helical, or skyrmionic order
作者： T. R. Kirkpatrick , D. Belitz
DOI: 10.1103/PHYSREVB.97.064411
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摘要: The electrical resistivity of several relatively clean metallic ferromagnets, as well the helimagnet MnSi, is commonly observed to exhibit non-Fermi-liquid behavior at low temperatures. This behavior, which found in both ordered and disordered phases, near away from magnetic transition, remains a major unsolved problem. We derive discuss three novel mechanisms underlying such that are based on electron scattering mediated by exchange (1) ferromagnons or (2) skyrmionic fluctuations, conjunction with weak disorder, (3) helimagnons systems. Since transition weakly sytems generically discontinuous, static droplets phase can exist within phase, making viable there well. compare our theoretical results existing experimental ones suggest additional experiments.
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