Investigation of surface energies in spin crossover nanomaterials: the role of surface relaxations
文献情報
William Nicolazzi, Férial Terki, Gábor Molnár, Azzedine Bousseksou
We analyse in detail the role of surface relaxations on the spin transition phenomenon through an Ising-like model solved in the inhomogeneous mean field approach. We show the surface relaxation tends to decrease the energy cost of missing bonds. Cooperative phenomena are also affected, leading to an asymmetric hysteresis loop. The underlying mechanisms are investigated by calculating thermodynamics excess quantities. Far from the spin transition, the contribution of surface relaxations to the excess internal energy, entropy and free energy is negligible, but their role becomes substantial around the transition temperature.
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掲載誌
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










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