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In this Thesis we study the paradigmatic quantum kagome antiferromagnet (QKA) herbertsmithite and the recently synthesized Zn-brochantite by a variety of experimental techniques. We find that herbertsmithite possesses two types of defects at low temperatures, d_I and d_II, not just one type as previ ...

Strong correlations and ferromagnetic Hund’s coupling lead to diverse electronic phenomena in transition-metal oxides that sensitively depend on the ▫$d$▫-orbital electron filling. Fullerides, their ▫$p$▫-electron counterparts, exhibit effective antiferromagnetic Hund’s coupling in a different energ ...

Biofilm-associated contamination represents a persistent and costly challenge across environmental systems, causing reduced efficacy of disinfectants. Recently, nanobubbles (NBs) have shown promise for biofilm decontamination; yet, their underpinning mode of action remains a topic of debate. In this ...

In the present thesis the philosophical foundations of German and English Romanticism are presented and compared. The thesis deals with philosophical ideas of Romanticism, which developed in late 18th century and at the beginning of 19th century in Europe. To understand the creation of Romanticism t ...