Consortium of Swiss Academic Libraries

Comparison of experimental and theoretical results for the structure and elastic properties of moganite

Grimmer, Hans ; Delley, Bernard

In: Zeitschrift für Kristallographie - Crystalline Materials, 2017, vol. 232, no. 4, p. 279-286

Université de Fribourg

Electronic structure and photoluminescence properties of Eu(η9-C9H9)2

Ramanantoanina, Harry ; Merzoud, Lynda ; Muya, Jules Tshishimbi ; Chermette, Henry ; Daul, Claude

In: The Journal of Physical Chemistry A, 2020, vol. 124, no. 1, p. 152–164

The electronic structure of Eu2+ compounds results from a complex combination of strongly correlated electrons and relativistic effects as well as weak ligand–field interaction. There is tremendous interest in calculating the electronic structure as nowadays the Eu2+ ion is becoming more and more crucial, for instance, in lighting technologies. Recently, interest in semiempirical methods to...

Université de Fribourg

Coupling of electronic and nuclear motion in a negative ion resonance: Experimental and theoretical study of benzene

Allan, Michael ; Čurík, Roman ; Čársky, Petr

In: The Journal of Chemical Physics, 2019, vol. 151, no. 6, p. 064119

We present calculated and measured elastic and vibrational excitation cross sections in benzene with the objective to assess the reliability of the theoretical method and to shed more light on how the electronic motion of the incoming electron is coupled with the nuclear motion of the vibrations. The calculation employed the discrete momentum representation method which involves solving the...

Université de Fribourg

Continuous magnetic phase transition in artificial square ice

Sendetskyi, Oles ; Scagnoli, Valerio ; Leo, Naëmi ; Anghinolfi, Luca ; Alberca, Aurora ; Lüning, Jan ; Staub, Urs ; Derlet, Peter Michael ; Heyderman, Laura Jane

In: Physical Review B, 2019, vol. 99, no. 21, p. 214430

Critical behavior is very common in many fields of science and a wide variety of many- body systems exhibit emergent critical phenomena. The beauty of critical phase transitions lies in their scale-free properties, such that the temperature dependence of physical parameters of systems differing at the microscopic scale can be described by the same generic power laws. In this work we establish...