Kagome materials, characterized by networks of corner-sharing triangles, provide a versatile platform for exploring emergent quantum phenomena arising from the interplay of lattice geometry, topology, electron correlations, and magnetism. Their distinctive electronic structure supports flat bands, Dirac dispersions, van Hove singularities, and strong magnetic frustration, making them an ideal setting for unconventional electronic and spin states. Recent discoveries in kagome metals, magnets, and superconductors have revealed a rich variety of ordered phases, including charge density waves, superconductivity, nematicity, magnetism, chiral electronic orders, and possible time-reversal symmetry breaking states.

A central challenge in this field is understanding how these competing and coexisting orders interact and evolve under external tuning. In many kagome systems, multiple competing instabilities emerge in close energetic proximity, indicating that their quantum phases are inherently intertwined rather than independent. The ability to tune these phases through chemical substitution, pressure, strain, magnetic field, reduced dimensionality, gating, and heterostructure engineering further opens new opportunities to manipulate correlated and topological states in a controlled manner.

This Collection aims to highlight recent progress on intertwined orders and tunable quantum phases in kagome materials. We welcome experimental, theoretical, and computational contributions on material discovery, microscopic mechanisms, and phase control, with emphasis on emergent ordering phenomena, phase competition and coexistence, and the external tuning of quantum states in kagome systems.

This Collection supports and amplifies research related to SDG 9.

Keywords: Kagome Materials; Intertwined Orders; Tunable Quantum Phases; Unconventional Superconductivity; Charge Density Waves; Quantum Materials; Correlated Electron Systems; Topological Materials

High pressure has emerged as a powerful tool to manipulate structural, electronic, and vibrational properties in condensed matter systems, frequently giving rise to novel superconducting phases. This collection focuses on recent advances in pressure-induced superconductivity and related phenomena in quantum materials.

We welcome experimental, theoretical, and computational contributions, including first-principles investigations and mechanism-driven studies, particularly those addressing electron–phonon coupling and the discovery and characterization of superconductors under high pressure.

Topics include, but are not limited to:

• Pressure-induced superconductivity in diverse material systems

• Electron–phonon coupling and superconducting mechanisms

• First-principles modeling and computational materials design

• Structural and electronic phase transitions under pressure

• Advances in high-pressure synthesis and characterization

By bringing together diverse perspectives, this collection aims to deepen our understanding of how pressure can be harnessed to reveal, tune, and control superconductivity in condensed matter systems.

This Collection supports and amplifies research related to SDG 9.

Keywords: Superconductivity; Pressure-Induced Superconductivity; High-Pressure Physics; Quantum Materials; Electron–Phonon Coupling; First-Principles Calculations; Electronic Structure; Crystal Structure; Structural and Electronic Phase Transitions; Hydride Superconductors