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20212026
most citedQuartic metal: Spontaneous breaking of time-reversal symmetry due to four-fermion correlations in BaKFeAs

105 citations · 165 across the 7 of their papers we have counts for

collaborators

7 papers

cond-mat.str-el2026

Ferroaxial and nematic transitions in the charge density wave phase of 1T-TiSe

Sarah Edwards, Elliott Rosenberg, Ilaria Maccari +9

Charge density waves (CDWs) with multi-component order parameters can break unexpected symmetries through the interplay of nearly degenerate instabilities. In the widely investigat…

cond-mat.supr-con2025

Switchable half-quantum flux states in a ring of the kagome superconductor CsVSb

Shuo Wang, Ilaria Maccari, Xilin Feng +14

Magnetic flux quantization in units of is a defining feature of superconductivity, rooted in the charge-2e nature of Cooper pairs. In a ring geometry, the flux quantiz…

cond-mat.supr-con2025★ 1 cited

Revisiting vestigial order in nematic superconductors: gauge-field mechanisms and model constraints

Ilaria Maccari, Egor Babaev, Johan Carlström

An electronic nematic order that originates from superconducting fluctuation but persists above the superconducting transition temperature is often referred to as a vestigial nemat…

cond-mat.supr-con2022★ 23 cited

Calorimetric evidence for two phase transitions in BaKFeAs with fermion pairing and quadrupling states

Ilya Shipulin, Nadia Stegani, Ilaria Maccari +9

Theoretically, materials that break multiple symmetries allow, under certain conditions, the formation of four-fermion condensates above the superconducting critical temperature. S…

cond-mat.str-el2022★ 21 cited

Prediction of time-reversal-symmetry breaking fermionic quadrupling condensate in twisted bilayer graphene

Ilaria Maccari, Johan Carlström, Egor Babaev

Recent mean-field calculations suggest that the superconducting state of twisted bilayer graphene exhibits either a nematic order or a spontaneous breakdown of the time-reversal sy…

cond-mat.supr-con2022★ 15 cited

Effects of intercomponent couplings on the appearance of time-reversal symmetry breaking fermion quadrupling state in two-component London models

Ilaria Maccari, Egor Babaev

A detection of bosonic metallic state that breaks the time-reversal symmetry has been recently reported in BaKFeAs with a doping level . Th…

cond-mat.supr-con2021★ 105 cited

Quartic metal: Spontaneous breaking of time-reversal symmetry due to four-fermion correlations in BaKFeAs

Vadim Grinenko, Daniel Weston, Federico Caglieris +19

Discoveries of ordered quantum states of matter are of great fundamental interest, and often lead to unique applications. The most well known example -- superconductivity -- is cau…