Publications by authors named "A N Burkov"
Article Synopsis
- Sulfides and selenides of copper and silver, particularly Ag3CuS2 (jalpaite), are studied as potential thermoelectric materials, but information on jalpaite's physical properties is limited.
- Researchers conducted theoretical and experimental studies on jalpaite's band structure, phonon spectrum, and thermoelectric properties, measuring key factors like the Seebeck coefficient and thermal conductivity from room temperature to 600 K.
- The findings revealed significant transport properties, including a low lattice thermal conductivity, which relates to the material's complex crystal structure, and indicated that silver vacancies increase hole concentration within the material.
The concept of quantum phase transitions (QPTs) plays a central role in the description of condensed matter systems. In this Letter, we perform high-quality wave-function-based simulations to demonstrate the existence of a quantum phase transition in a crucially relevant molecular system, namely, water, forming linear chains of rotating molecules. We determine various critical exponents and reveal the water chain QPT to belong to the (1+1)-dimensional Ising universality class.
View Article and Find Full Text PDFThe chiral anomaly is a fundamental quantum mechanical phenomenon which is of great importance to both particle physics and condensed matter physics alike. In the context of QED, it manifests as the breaking of chiral symmetry in the presence of electromagnetic fields. It is also known that anomalous chiral symmetry breaking can occur through interactions alone, as is the case for interacting one-dimensional systems.
View Article and Find Full Text PDFBecause of the effort to preserve petroleum resources and promote the development of eco-friendly materials, bio-based polymers produced from sustainable resources have attracted great attention. Among them, polylactide (PLA) and natural rubber (NR) present prominent polymers with unique barrier and mechanical features. A series of samples with improved phase compatibility were obtained by blending PLA and NR using a double-rotor mixer.
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- Low methyl-esterified pectin (AU701) can form gel beads with glycerol that have similar properties to those made with calcium (Ca).
- The dry AU701-glycerol gel beads have a rough, grooved surface and can absorb significantly more water than the AU701-Ca gel beads.
- The properties of the AU701-glycerol gel beads improve with higher pectin/glycerol ratios, showing better swelling in simulated gastric fluid and higher stability in simulated intestinal fluid compared to the Ca cross-linked beads.