Zobrazeno 1 - 10
of 316
pro vyhledávání: '"Samwer, Konrad"'
A detailed study of published experimental data for a variety of materials on the incremental variation of heat capacity, thermal expansion, and compressibility at glassy freezing reveals a striking dependence of the Prigogine-Defay ratio R on the fr
Externí odkaz:
http://arxiv.org/abs/2405.05612
Publikováno v:
National Science Review 2024
Relaxation processes are crucial in understanding the structural rearrangements of liquids and amorphous materials. However, the overarching principle that governs these processes across vastly different materials remains an open question. Substantia
Externí odkaz:
http://arxiv.org/abs/2403.06175
Autor:
Weber, Niklas A., Schmidt, Hendrik, Sievert, Tim, Jooss, Christian, Güthoff, Friedrich, Moshneaga, Vasily, Samwer, Konrad, Krüger, Matthias, Volkert, Cynthia A.
Despite the huge importance of friction in regulating movement in all natural and technological processes, the mechanisms underlying dissipation at a sliding contact are still a matter of debate. Attempts to explain the dependence of measured frictio
Externí odkaz:
http://arxiv.org/abs/2009.12137
Publikováno v:
J. Chem. Phys. 153 (2020) 124507
A recently published analytical model, describing and predicting elasticity, viscosity, and fragility of metallic melts, is applied for the analysis of about 30 nonmetallic glassy systems, ranging from oxide network glasses to alcohols, low-molecular
Externí odkaz:
http://arxiv.org/abs/2009.07742
Publikováno v:
Phys. Rev. Research 2, 033134 (2020)
We combine the shoving model of $T$-dependent viscosity of supercooled liquids with the Zwanzig-Mountain formula for the high-frequency shear modulus, using the $g(r)$ of MD simulations of metal alloys as the input. This scheme leads to a semi-analyt
Externí odkaz:
http://arxiv.org/abs/2007.12546
Autor:
Sun, Peihao, Martinelli, Alessandro, Melnikov, Alexey P., Burghammer, Manfred, Antonowicz, Jerzy, Sobierajski, Ryszard, Fuoss, Paul, Baron, Alfred Q.R., Tamasaku, Kenji, Ohsumi, Hiroyuki, Caporaletti, Federico, Suuronen, Jussi-Petteri, Tucoulou, Rémi, Samwer, Konrad, Hastings, J.B., Monaco, Giulio
Publikováno v:
In Materialia August 2023 30
Autor:
Riechers, Birte, Ott, Catherine, Das, Saurabh Mohan, Liebscher, Christian H., Samwer, Konrad, Derlet, Peter M., Maaß, Robert
Publikováno v:
In Materials & Design May 2023 229
Publikováno v:
Phys. Rev. Lett. 122, 136801 (2019)
Materials exhibiting reversible resistive switching in electrical fields are highly demanded for functional elements in oxide electronics. In particular, multilevel switching effects allow for advanced applications like neuromorphic circuits. Here we
Externí odkaz:
http://arxiv.org/abs/1812.08563
We report a significant change in friction of a $\rm La_{0.55}Ca_{0.45}MnO_3$ thin film measured as a function of the materials resistive state under ultrahigh vacuum conditions at room temperature by friction force microscopy. While friction is high
Externí odkaz:
http://arxiv.org/abs/1611.02684
Publikováno v:
Journal of Statistical Mechanics: Theory and Experiment 084001 (2016)
An analytical framework is proposed to describe the elasticity, viscosity and fragility of metallic glasses in relation to their atomic-level structure and the effective interatomic interaction. The bottom-up approach starts with forming an effective
Externí odkaz:
http://arxiv.org/abs/1608.03834