Zobrazeno 1 - 10
of 902
pro vyhledávání: '"Dressel, Martin"'
Autor:
Schmidt, Marvin, Priya, Savita, Huang, Zhijie, Kartsovnik, Mark, Kushch, Natalia, Dressel, Martin
The two-dimensional molecular conductor $\kappa$-(BETS)$_2$Mn[N(CN)$_2$]$_3$ undergoes a sharp metal-to-insulator phase transition at $T_{\rm MI}\approx$ 21 K, which has been under scrutiny for many years. We have performed comprehensive infrared inv
Externí odkaz:
http://arxiv.org/abs/2409.08656
Autor:
Deshpande, Aniruddha, Pusskeiler, Jan, Prange, Christian, Rogge, Uwe, Dressel, Martin, Scheffler, Marc
Granular aluminum, which consists of nanometer-sized aluminum grains separated by aluminum oxide, is a peculiar superconductor. Its phase diagram as function of normal-state resistivity features a superconducting dome with a maximum critical temperat
Externí odkaz:
http://arxiv.org/abs/2408.15477
Autor:
Wenzel, Maxim, Uykur, Ece, Rößler, Sahana, Schmidt, Marcus, Janson, Oleg, Tiwari, Achyut, Dressel, Martin, Tsirlin, Alexander A.
Presence of magnetism in potentially altermagnetic RuO$_2$ has been a subject of intense debate. Using broadband infrared spectroscopy combined with density-functional band-structure calculations, we show that optical conductivity of RuO$_2$, the bul
Externí odkaz:
http://arxiv.org/abs/2407.11148
Autor:
Pal, Sudip, Doležal, Petr, Strøm, Scott A., Bertaina, Sylvain, Pustogow, Andrej, Kremer, Reinhard K., Dressel, Martin, Puphal, Pascal
We have investigated the magnetic ground state properties of the quantum spin trimer compound strontium hydroxy copper chloride SrCu(OH)$_3$Cl using bulk magnetization, specific heat measurements, nuclear magnetic resonance (NMR), and electron spin r
Externí odkaz:
http://arxiv.org/abs/2401.12098
Autor:
Warawa, Konstantin, Agarmani, Yassine, Schubert, Harald, Dressel, Martin, Lang, Michael, Roskos, Hartmut G., Thomson, Mark D.
We investigate experimentally the ultrafast changes in the spectral response of the Mott insulator $\kappa$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Cl ($\kappa$-Cl) upon photodoping with intense excitation at 1.6 eV and probing with continuum pulses simultaneousl
Externí odkaz:
http://arxiv.org/abs/2310.18761
Determining the optical and electronic properties of strongly anisotropic materials with symmetries below orthorhombic remains challenging; generalized ellipsometry is a powerful technique in this regard. Here, we employ Mueller matrix spectroscopic
Externí odkaz:
http://arxiv.org/abs/2310.18115
Autor:
Roy, Renjith Mathew, Pal, Sudip, Yang, Run, Roh, Seulki, Shin, Soohyeon, Park, Tae Beom, Park, Tuson, Dressel, Martin
The heavy-fermion compound CeRhIn$_5$ can be tuned through a quantum critical point, when In is partially replaced by Sn. This way additional charge carriers are introduced and the antiferromagnetic order is gradually suppressed to zero temperature.
Externí odkaz:
http://arxiv.org/abs/2310.16689
Autor:
Wenzel, Maxim, Tsirlin, Alexander A., Capitani, Francesco, Chan, Yuk T., Ortiz, Brenden R., Wilson, Stephen D., Dressel, Martin, Uykur, Ece
Publikováno v:
npj Quantum Mater. 8, 45 (2023)
The coexistence of the charge-density wave (CDW) and superconducting phases and their tunability under external pressure remains one of the key points in understanding the electronic structure of $A$V$_3$Sb$_5$ ($A$ = K, Rb, Cs) kagome metals. Here,
Externí odkaz:
http://arxiv.org/abs/2305.02751
Autor:
Beydeda, Cenk, Nikolaou, Konstantin, Tochtermann, Marius, Ebensperger, Nikolaj G., Untereiner, Gabriele, Farag, Ahmed, Karl, Philipp, Ubl, Monika, Giessen, Harald, Dressel, Martin, Scheffler, Marc
Planar superconducting microwave transmission line resonators can be operated at multiple harmonic resonance frequencies. This allows covering wide spectral regimes with high sensitivity, as it is desired e.g. for cryogenic microwave spectroscopy. A
Externí odkaz:
http://arxiv.org/abs/2303.15914
Autor:
Tsirlin, Alexander A., Ortiz, Brenden R., Dressel, Martin, Wilson, Stephen D., Winnerl, Stephan, Uykur, Ece
Publikováno v:
Phys. Rev. B 107, 174107 (2023)
High-pressure single-crystal x-ray diffraction experiments reveal that the superconducting kagome metal CsV$_3$Sb$_5$ transforms from hexagonal ($P6/mmm$) to monoclinic ($C2/m$) symmetry above 10 GPa if nonhydrostatic pressure conditions are created
Externí odkaz:
http://arxiv.org/abs/2209.02794