Direct observation of the multisheet Fermi surface in the strongly correlated transition metal compound ZrZn2.
نویسندگان
چکیده
The existence of flat areas of a Fermi surface (FS), predicted by electronic structure calculations and used in models of both magnetically mediated and phonon-mediated Fulde-Ferrell-Larkin-Ovchinnikov superconducting states, is reported in the paramagnetic phase of the ferromagnetic superconductor ZrZn2 using positron annihilation. The strongly mass-renormalized FS sheet, dominating the Fermi level density of states, is seen for the first time. The delocalization of the magnetization is studied using measured and calculated magnetic Compton profiles.
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ورودعنوان ژورنال:
- Physical review letters
دوره 92 10 شماره
صفحات -
تاریخ انتشار 2004