Theory of spontaneous Fermi surface symmetry breaking for Sr3 Ru2 O7

Hiroyuki Yamase, Andrey A. Katanin

Результат исследований: Вклад в журналСтатьярецензирование

2 Цитирования (Scopus)


We show that many salient features observed around the metamagnetic transition in Sr3 Ru2 O7 are described within a simple model, which considers only an instability of the Fermi surface symmetry breaking (Pomeranchuk instability), without invoking a putative metamagnetic quantum critical end point as usually assumed for this compound. In our model, the Pomeranchuk instability and unconventional, non-Fermi liquid type properties arise due to the tuning of the van Hove singularity of either a majority or a minority spin band to the vicinity of the Fermi energy by a magnetic field. The obtained phase diagram, the metamagnetic transition, and the temperature dependence of the magnetic susceptibility and specific heat show striking similarities to the experimental data.

Язык оригиналаАнглийский
Страницы (с-по)1262-1264
Число страниц3
ЖурналPhysica B: Condensed Matter
Номер выпуска5-9
СостояниеОпубликовано - 1 апр. 2008
Опубликовано для внешнего пользованияДа


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