Zobrazeno 1 - 10
of 1 563
pro vyhledávání: '"Lunkenheimer, P."'
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:
J. Phys. Chem. B 128 (2024) 3454
Deep eutectic solvents with admixed lithium salts are considered as electrolytes in electrochemical devices like batteries or supercapacitors. Compared to eutectic mixtures of hydrogen-bond donors and lithium salts, their raw-material costs are signi
Externí odkaz:
http://arxiv.org/abs/2401.12186
Autor:
Zhou, L., Puntigam, L., Lunkenheimer, P., Bourret, E., Yan, Z., Kézsmárki, I., Meier, D., Krohns, S., Schultheiß, J., Evans, D. M.
A promising mechanism for achieving colossal dielectric constants is to use insulating internal barrier layers, which typically form during synthesis and then remain in the material. It has recently been shown that insulating domain walls in ferroele
Externí odkaz:
http://arxiv.org/abs/2401.10835
Publikováno v:
J. Chem. Phys. 160 (2024) 145103
We present a detailed study on the temperature-dependent THz spectra of the polycrystalline amino acids L-serine and L-cysteine for wave numbers from 20 to 120 cm-1 and temperatures from 4 to 300 K. Even though the structure of these two amino acids
Externí odkaz:
http://arxiv.org/abs/2312.07996
Publikováno v:
J. Chem. Phys. 160 (2024) 074503
The glass formation and the dipolar reorientational motions in deep eutectic solvents (DESs) are frequently overlooked, despite their crucial role in defining the room-temperature physiochemical properties. To understand the effects of these dynamics
Externí odkaz:
http://arxiv.org/abs/2311.17724
Publikováno v:
J. Chem. Phys. 160 (2024) 054502
Glass formation and reorientational motions are widespread, but often-neglected features of deep eutectic solvents, although both can be relevant for the technically important ionic conductivity at room temperature. Here we investigate these properti
Externí odkaz:
http://arxiv.org/abs/2311.09360
Autor:
Thomas, Tatjana, Agarmani, Yassine, Hartmann, Steffi, Kartsovnik, Mark, Kushch, Natalia, Winter, Stephen M., Schmid, Sebastian, Lunkenheimer, Peter, Lang, Michael, Mueller, Jens
Using a combination of resistance fluctuation (noise) and dielectric spectroscopy we investigate the nature of relaxor-type electronic ferroelectricity in the organic conductor $\kappa$-(BETS)$_2$Mn[N(CN)$_2$]$_3$, a system representative for a wider
Externí odkaz:
http://arxiv.org/abs/2310.17242
Autor:
Alarcon, R., Beck, R., Bernauer, J. C., Broering, M., Christopher, A., Cline, E. W., Dhital, S., Dongwi, B., Fernando, I., Finger, M., Finger Jr., M., Friščić, I., Gautam, T., Grauvogel, G. N., Hasell, D. K., Hen, O., Horn, T., Ihloff, E., Johnston, R., Kelsey, J., Kohl, M., Kutz, T., Lavrukhin, I., Lee, S., Lorenzon, W., Lunkenheimer, S., Maas, F., Milner, R. G., Moran, P., Nazeer, J., Patel, T., Rathnayake, M., Raymond, R., Redwine, R. P., Schmidt, A., Schneekloth, U., Sokhan, D., Suresh, M., Vidal, C., Yang, Z.
We propose a new measurement of the ratio of positron-proton to electron-proton elastic scattering at DESY. The purpose is to determine the contributions beyond single-photon exchange, which are essential for the Quantum Electrodynamic (QED) descript
Externí odkaz:
http://arxiv.org/abs/2307.13330
Autor:
Li, L., Strauch, S., Bernauer, J. C., Briscoe, W. J., Ndukwe, A. Christopher, Cline, E., Cohen, D., Deiters, K., Downie, E. J., Fernando, I. P., Flannery, A., Gilman, R., Ilieva, Y., Kohl, M., Lavrukhin, I., Lin, W., Lorenzon, W., Lunkenheimer, S., Mohanmurthy, P., Nazeer, J., Nicol, M., Patel, T., Prosnyakov, A., Reid, H., Reimer, P. E., Ron, G., Rostomyan, T., Ruimi, O. M., Sparveris, N., Yaari, D.
The MUSE experiment at the Paul Scherrer Institute is measuring elastic lepton-proton scattering cross sections in a four-momentum transfer range from $Q^2$ of approximately 0.002 to 0.08 GeV$^2$ using positively and negatively charged electrons and
Externí odkaz:
http://arxiv.org/abs/2307.06417
Publikováno v:
J. Chem. Phys. 158 (2023) 184503
By using dielectric spectroscopy in a broad range of temperatures and frequencies, we have investigated dipolar relaxations, the dc conductivity, and the possible occurrence of polar order in AgCN. Conductivity contributions dominate the dielectric r
Externí odkaz:
http://arxiv.org/abs/2303.05280