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Consortium of Swiss Academic Libraries

Reflection Positivity for Majoranas

Jaffe, Arthur ; Pedrocchi, Fabio

In: Annales Henri Poincaré, 2015, vol. 16, no. 1, p. 189-203

Consortium of Swiss Academic Libraries

A posteriori estimates for a coupled piezoelectric model

Langer, Ulrich ; Repin, Sergey ; Samrowski, Tatiana

In: Russian Journal of Numerical Analysis and Mathematical Modelling, 2017, vol. 32, no. 4, p. 259-266

Université de Fribourg

Electronic structure beyond the generalized gradient approximation for ${\mathrm{Ni}}_{2}\mathrm{MnGa}$

Baigutlin, D. R. ; Sokolovskiy, V. V. ; Miroshkina, O. N. ; Zagrebin, M. A. ; Nokelainen, J. ; Pulkkinen, Aki ; Barbiellini, B. ; Pussi, K. ; Lähderanta, E. ; Buchelnikov, V. D. ; Zayak, A. T.

In: Physical Review B, 2020, vol. 102, no. 4, p. 045127

The stability of the nonmodulated martensitic phase, the austenitic Fermi surface, and the phonon dispersion relations for ferromagnetic Ni2MnGa are studied using density functional theory. Exchange-correlation effects are considered with various degrees of precision, starting from the simplest local spin density approximation (LSDA), then adding corrections within the generalized gradient...

Université de Fribourg

A Three-Dimensional Porous Organic Semiconductor Based on Fully sp2 -Hybridized Graphitic Polymer

Byun, Yearin ; Xie, Lilia S. ; Fritz, Patrick Walter ; Ashirov, Timur ; Dincă, Mircea ; Coskun, Ali

In: Angewandte Chemie International Edition, 2020, vol. 59, no. 35, p. 15166-15170

Dimensionality plays an important role in the charge transport properties of organic semiconductors. Although three‐dimensional semiconductors, such as Si, are common in inorganic materials, imparting electrical conductivity to covalent three‐ dimensional organic polymers is challenging. Now, the synthesis of a three‐ dimensional π‐conjugated porous organic polymer (3D p‐POP) using...

Université de Fribourg

Towards a probabilistic understanding about the context-dependency of species interactions

Song, Chuliang ; Ahn, Sarah Von ; Rohr, Rudolf P. ; Saavedra, Serguei

In: Trends in Ecology & Evolution, 2020, vol. 35, no. 5, p. 384–396

Observational and experimental studies have shown that an interaction class between two species (be it mutualistic, competitive, antagonistic, or neutral) may switch to a different class, depending on the biotic and abiotic factors within which species are observed. This complexity arising from the evidence of context-dependencies has underscored a difficulty in establishing a systematic ...