Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Altmeyer, Michaela"'
Autor:
Biesner, Tobias, Biswas, Sananda, Li, Weiwu, Saito, Yohei, Pustogow, Andrej, Altmeyer, Michaela, Wolter, Anja U. B., Büchner, Bernd, Roslova, Maria, Doert, Thomas, Winter, Stephen M., Valentí, Roser, Dressel, Martin
Publikováno v:
Phys. Rev. B 97, 220401 (2018)
The honeycomb Mott insulator $\alpha$-RuCl$_3$ loses its low-temperature magnetic order by pressure. We report clear evidence for a dimerized structure at $P>1$ GPa and observe the breakdown of the relativistic $j_{\rm eff}$ picture in this regime st
Externí odkaz:
http://arxiv.org/abs/1802.10060
Publikováno v:
Phys. Rev. B 97, 014530 (2018)
Starting from an {\it ab initio}-derived two-site dimer Hubbard hamiltonian on a triangular lattice, we calculate the superconducting gap functions and critical temperatures for representative $\kappa$-(BEDT-TTF)$_2$X superconductors by solving the l
Externí odkaz:
http://arxiv.org/abs/1711.09630
Publikováno v:
Phys. Rev. B 96, 115116 (2017)
The absence of both spin freezing and of a static Jahn-Teller effect have lead to the proposition that Ba$_3$CuSb$_2$O$_9$ is a quantum spin-orbital liquid. However, theoretical understanding of the microscopic origin of this behavior has been hamper
Externí odkaz:
http://arxiv.org/abs/1701.05135
Autor:
Altmeyer, Michaela, Guterding, Daniel, Hirschfeld, P. J., Maier, Thomas A., Valenti, Roser, Scalapino, Douglas J.
Publikováno v:
Phys. Rev. B 94, 214515 (2016)
In the framework of a multiorbital Hubbard model description of superconductivity, a matrix formulation of the superconducting pairing interaction that has been widely used is designed to treat spin, charge and orbital fluctuations within a random ph
Externí odkaz:
http://arxiv.org/abs/1606.06189
Publikováno v:
Phys. Rev. B 94, 024515 (2016)
The symmetry of the superconducting order parameter in quasi-two-dimensional BEDT-TTF organic superconductors is a subject of ongoing debate. We report ab initio density functional theory calculations for a number of organic superconductors containin
Externí odkaz:
http://arxiv.org/abs/1605.07017
Autor:
Altmeyer, Michaela, Jeschke, Harald O., Hijano-Cubelos, Oliver, Martins, Cyril, Lechermann, Frank, Koepernik, Klaus, Santander-Syro, Andres F., Rozenberg, Marcelo J., Valenti, Roser, Gabay, Marc
Publikováno v:
Phys. Rev. Lett. 116, 157203 (2016)
Motivated by recent spin- and angular-resolved photoemission (SARPES) measurements performed on the two-dimensional electronic states confined near the (001) surface of SrTiO$_3$ in the presence of oxygen vacancies, we explore their spin structure by
Externí odkaz:
http://arxiv.org/abs/1511.08614
Autor:
Guterding, Daniel, Diehl, Sandra, Altmeyer, Michaela, Methfessel, Torsten, Tutsch, Ulrich, Schubert, Harald, Lang, Michael, Müller, Jens, Huth, Michael, Jeschke, Harald O., Valenti, Roser, Jourdan, Martin, Elmers, Hans-Joachim
Publikováno v:
Phys. Rev. Lett. 116, 237001 (2016)
We report a combined theoretical and experimental investigation of the superconducting state in the quasi-two-dimensional organic superconductor $\kappa$-(ET)$_2$Cu[N(CN)$_2$]Br. Applying spin-fluctuation theory to a low-energy material-specific Hami
Externí odkaz:
http://arxiv.org/abs/1510.09209
Publikováno v:
Phys. Rev. B 91, 245137 (2015)
The charge transfer compound (BEDT-TTF)$_2$Ag(CF$_3$)$_4$(TCE) crystallizes in three polymorphs with different alternating layers: While a phase with a $\kappa$ packing motif has a low superconducting transition temperature of $T_c=2.6$ K, two phases
Externí odkaz:
http://arxiv.org/abs/1503.07805
Autor:
Manni, S., Choi, Sungkyun, Mazin, I. I., Coldea, R., Altmeyer, Michaela, Jeschke, Harald O., Valenti, Roser, Gegenwart, P.
Publikováno v:
Phys. Rev. B 89, 245113 (2014)
We have investigated experimentally and theoretically the series (Na$_{1-x}$Li$_{x}$)$_{2}$IrO$_{3}$. Contrary to what has been believed so far, only for $x\leq0.25$ the system forms uniform solid solutions. For larger Li content, as evidenced by pow
Externí odkaz:
http://arxiv.org/abs/1312.0815
In einer aktuellen Forschungskooperation zwischen der KfW und dem ifo Institut wird das Potenzial von Unternehmensnachrichten aus Zeitungen für die Konjunkturanalyse untersucht. Mit Hilfe einer KI-basierten Anwendung zur Nachrichtenaufbereitung wurd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1687::4632981ae1f011247c37c0c0a7ca9cc8
https://hdl.handle.net/10419/272072
https://hdl.handle.net/10419/272072