Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Jesche, Anton"'
The manifold of energetically degenerate configurations arising from competing interactions in frustrated magnets gives rise to an enhanced entropy at lowest temperatures, which can be utilized for adiabatic demagnetization refrigeration (ADR). We re
Externí odkaz:
http://arxiv.org/abs/2405.15697
The performance of permanent magnets is intricately tied to their magnetic hysteresis loop. In this study, we investigate the heavy-fermion ferromagnet CeAgSb$_2$ through magnetization measurements under uniaxial stress. We observe a 2400 % increase
Externí odkaz:
http://arxiv.org/abs/2404.19320
Autor:
Mukharjee, Prashanta K., Shen, Bin, Erdmann, Sebastian, Jesche, Anton, Kaiser, Julian, Baral, Priya R., Zaharko, Oksana, Gegenwart, Philipp, Tsirlin, Alexander A.
We use magnetometry, calorimetry, and high-resolution capacitive dilatometry, as well as single-crystal neutron diffraction to explore temperature-field phase diagram of the anisotropic honeycomb magnet BaCo$_2$(AsO$_4)_2$. Our data reveal four disti
Externí odkaz:
http://arxiv.org/abs/2403.04466
Publikováno v:
Phys. Rev. B 109, 205152 (2024)
We present electrical resistivity measurements on the prototypical heavy-fermion metal YbRh$_{2}$Si$_{2}$ (YRS) under $a$-axis tensile and compressive strain and focus on the evolution of the resistivity maximum near 136~K that arises from the interp
Externí odkaz:
http://arxiv.org/abs/2402.00630
Publikováno v:
Phys. Rev. B 108, 235130 (2023)
Honeycomb Na$_2$IrO$_3$ is a prototype spin-orbit Mott insulator and Kitaev magnet. We report a combined structural and electrical resistivity study of Na$_2$IrO$_3$ single crystals. Laue back-scattering diffraction indicates twinning with $\pm 120^\
Externí odkaz:
http://arxiv.org/abs/2311.07275
Autor:
Hua, Nelson, Breitner, Franziska, Jesche, Anton, Huang, Shih-Wen, Rüegg, Christian, Gegenwart, Philipp
Manipulating the size and orientation of quantum materials is often used to tune emergent phenomena, but precise control of these parameters is also necessary from an experimental point of view. Various synthesis techniques already exist, such as epi
Externí odkaz:
http://arxiv.org/abs/2310.18644
Publikováno v:
Phys. Rev. B 108, 045103 (2023)
We explore the effect of heat treatment in argon atmosphere under various temperatures up to $500^\circ$C on single crystals of $\alpha$-RuCl$_3$ by study of the mass loss, microprobe energy dispersive x-ray spectroscopy, powder x-ray diffraction, el
Externí odkaz:
http://arxiv.org/abs/2303.11308
Autor:
Langmann, Jan, Kepenci, Hasan, Eickerling, Georg, Batke, Kilian, Jesche, Anton, Xu, Mingyu, Canfield, Paul, Scherer, Wolfgang
Case studies of $1T$-TiSe$_2$ and YBa$_2$Cu$_3$O$_{7-\delta}$ have demonstrated that x-ray diffraction (XRD) studies can be used to trace even subtle structural phase transitions which are inherently connected with the onset of superconductivity in t
Externí odkaz:
http://arxiv.org/abs/2208.08463
Autor:
Nutakki, Rajah, Röß-Ohlenroth, Richard, Volkmer, Dirk, Jesche, Anton, von Nidda, Hans-Albrecht Krug, Tsirlin, Alexander A., Gegenwart, Philipp, Pollet, Lode, Jaubert, Ludovic D. C.
Publikováno v:
Phys. Rev. Research 5, L022018 (2023)
Geometric frustration inhibits magnetic systems from ordering, opening a window to unconventional phases of matter. The paradigmatic frustrated lattice in three dimensions to host a spin liquid is the pyrochlore, although there remain few experimenta
Externí odkaz:
http://arxiv.org/abs/2203.08780
Autor:
Shen, Bin, Breitner, Franziska, Prishchenko, Danil, Manna, Rudra Sekhar, Jesche, Anton, Seidler, Maximilian L., Gegenwart, Philipp, Tsirlin, Alexander A.
Publikováno v:
Phys. Rev. B 105, 054412 (2022)
We present magnetization measurements carried out on polycrystalline and single-crystalline samples of $\alpha$-Li$_2$IrO$_3$ under hydrostatic pressures up to 2 GPa and establish the temperature-pressure phase diagram of this material. The N\'eel te
Externí odkaz:
http://arxiv.org/abs/2112.04337