Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Agterberg, Daniel F."'
The recently synthesized $\eta$-carbide-type superconductors exhibit large critical fields. A notable example is Ti$_4$Ir$_2$O, for which the upper critical field strongly violates the Pauli paramagnetic limit, behavior that is unusual for cubic mate
Externí odkaz:
http://arxiv.org/abs/2411.09793
We study the micorscopic origin of the multiple superconducting and magnetic phases observed in CeRh$_2$As$_2$. We exploit the existence of a van Hove singularity enforced by the nonsymmorphic symmetry to conduct a renormalization group analysis. Whe
Externí odkaz:
http://arxiv.org/abs/2407.00536
Electronic nematic order has been reported in a rich landscape of materials, encompassing not only a range of intertwined correlated and topological phenomena, but also different underlying lattice symmetries. Motivated by these findings, we investig
Externí odkaz:
http://arxiv.org/abs/2402.17657
Publikováno v:
Phys. Rev. B 110, 144412 (2024)
Altermagnets feature vanishing net magnetization, like antiferromagnets, but exhibit time-reversal symmetry breaking and momentum-dependent spin-split band structures. Motivated by the prevalence of altermagnetic materials with non-symmorphic symmetr
Externí odkaz:
http://arxiv.org/abs/2402.15616
Realizing two-dimensional (2D) altermagnets is important for spintronics applications. Here we propose a microscopic template for stabilizing 2D altermagnetism through Van Hove singularities that are coincident in both energy and momentum. These coin
Externí odkaz:
http://arxiv.org/abs/2402.05180
Publikováno v:
Proceedings of the National Academy of Sciences 121.46 (2024): e2411038121
The Stoner instability remains a cornerstone for understanding metallic ferromagnets. This instability captures the interplay of Coulomb repulsion, Pauli exclusion, and two-fold fermionic spin degeneracy. In materials with spin-orbit coupling, this f
Externí odkaz:
http://arxiv.org/abs/2310.00838
Publikováno v:
Phys. Rev. B 109, 024502 (2024)
Motivated by the recent discovery of odd-parity multipolar antiferromagnetic order in CeRh$_2$As$_2$, we examine the coexistence of such translation invariant Kramers' degenerate magnetic states and superconductivity. We show that the presence of suc
Externí odkaz:
http://arxiv.org/abs/2306.11218
Publikováno v:
Phys. Rev. B 109, L220501 (2024)
Recently it has been argued that the superconducting state of FeSe$_{1-x}$S$_x$ exhibits Bogoliubov Fermi surfaces for $x>0.17$. These Bogoliubov Fermi surfaces appear together with broken time-reversal symmetry and surprisingly demonstrate nematic b
Externí odkaz:
http://arxiv.org/abs/2306.11200
Recent nuclear magnetic resonance (NMR) and calorimetric experiments have observed that UTe$_2$ exhibits a transition between two distinct superconducting phases as a function of magnetic field strength for a field applied along the crystalline $b$-a
Externí odkaz:
http://arxiv.org/abs/2303.02152
Autor:
Suh, Han Gyeol, Yu, Yue, Shishidou, Tatsuya, Weinert, Michael, Brydon, P. M. R., Agterberg, Daniel F.
Publikováno v:
Phys. Rev. Research 5, 033204 (2023)
Spin-orbit coupling driven by broken inversion symmetry ($I$) is known to lead to unusual magnetic response of superconductors, including extremely large critical fields for spin-singlet superconductors. This unusual response is also known to appear
Externí odkaz:
http://arxiv.org/abs/2301.11458