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Comment on "Andreev Reflection to Probe Momentum-Dependent Spin Polarization in Altermagnet CrSb"
Igor I. Mazin, Maxim Khodas, Boris Nadgorny
Zhang et al. [Phys. Rev. Lett. 137, 016701 (2026)] report momentum-dependent spin polarization in the altermagnet CrSb from point-contact Andreev reflection along the (0001), (-1-1…
Nonrelativistic-Ising superconductivity in p-wave magnets
Maxim Khodas, Libor Šmejkal, I. I. Mazin
We discuss a possibility of superconductivity in the p-wave magnets. These are recently discovered materials that have zero net magnetization by symmetry and finite non-relativisti…
Strain-Switchable Field-Induced Superconductivity
Joshua J. Sanchez, Gilberto Fabbris, Yongseong Choi +9
Field-induced superconductivity is a rare phenomenon where an applied magnetic field enhances or induces superconductivity. This fascinating effect arises from a complex interplay…
Interplay of magnetic field and magnetic impurities in Ising superconductors
Wuzhang Fang, M. Haim, K. D. Belashchenko +2
Phonon-driven -wave superconductivity is fundamentally antagonistic to uniform magnetism, and field-induced suppression of the critical temperature is one of its canonical signa…
Ion-selective scattering studied by the variable-energy electron irradiation of BaKFeAs superconductor
Kyuil Cho, M. Konczykowski, M. A. Tanatar +4
Low-temperature variable-energy electron irradiation was used to induce non-magnetic disorder in a single crystal of hole-doped iron-based superconductor, BaKFeAs$_…
Ising superconductivity: a first-principles perspective
Darshana Wickramaratne, Igor I. Mazin
The recent discovery of Ising superconductivity has garnered a lot of interest due in part to the resilience of these superconductors to large in-plane magnetic fields. In this Per…
Protection of Ising spin-orbit coupling in bulk misfit superconductors
Tomas Samuely, Darshana Wickramaratne, Martin Gmitra +16
Low-dimensional materials have remarkable properties that are distinct from their bulk counterparts. A paradigmatic example is Ising superconductivity that occurs in monolayer mate…
Hybrid s-wave superconductivity in CrB
Sananda Biswas, Andreas Kreisel, Adrian Valadkhani +5
In a metal with multiple Fermi pockets, the formation of s-wave superconductivity can be conventional due to electron-phonon coupling or unconventional due to spin fluctuations. We…
Electron-phonon coupling and spin fluctuations in the Ising superconductor NbSe
S. Das, H. Paudyal, E. R. Margine +2
Ising superconductivity, observed experimentally in NbSe and similar materials, has generated tremendous interest. Recently, attention was called to the possible role that sp…
study of Li-Mg-B superconductors
Gyanu P. Kafle, Charlsey R. Tomassetti, Igor I. Mazin +2
LiB, a predicted layered compound analogous to the MgB superconductor, has been recently synthesized via cold compression and quenched to ambient pressure, yet its superconduct…
Electron-phonon coupling strength from ab initio frozen-phonon approach
Yang Sun, Feng Zhang, Cai-Zhuang Wang +3
We propose a fast method for high-throughput screening of potential superconducting materials. The method is based on calculating metallic screening of zone-center phonon modes, wh…
Notes on altermagnetism and superconductivity
Igor I. Mazin
A brief discussion of possible interplay between altermagnetism (a third type of collinear magnetism, besides ferro- and antiferromagnetism), and superconductivity.
Ising superconductivity in monolayer niobium dichalcogenide alloys
Darshana Wickramaratne, I. I. Mazin
NbSe and NbS are isostructural two-dimensional materials that exhibit contrasting superconducting properties when reduced to the single monolayer limit. Monolayer NbSe$…
Renormalized q-dependent Spin Susceptibility by inverting the Random Phase Approximation: Implications for quantitative assessment of the role of spin fluctuations in 2D Ising superconductor NbSe
Suvadip Das, Igor I. Mazin
Accurate determination of the full momentum-dependent spin susceptibility is very important for the description of magnetism and superconductivity. While in princi…
Magnetism-driven unconventional effects in Ising superconductors: role of proximity, tunneling, and nematicity
Darshana Wickramaratne, Menashe Haim, Maxim Khodas +1
Hybrid Ising superconductor-ferromagnetic insulator heterostructures provide a unique opportunity to explore the interplay between proximity-induced magnetism, spin-orbit coupling…
Strongly anisotropic antiferromagnetic coupling in EuFe2As2 revealed by stress detwinning
Joshua J Sanchez, Gilberto Fabbris, Yongseong Choi +8
Of all parent compounds of iron-based high-temperature superconductors, EuFe2As2 exhibits by far the largest magnetostructural coupling due to the sizable biquadratic interaction b…
Anomalous gap ratio in anisotropic superconductors: aluminum under pressure
Rustem Khasanov, Igor. I. Mazin
Pressure dependence of the thermodynamic critical field in elemental aluminum was studied by means of the muon-spin rotation/relaxation technique. Pressure enhance…
Superconductivity in LaNiIn
Jannis Maiwald, Igor I. Mazin, Alex Gurevich +1
We report here the properties of single crystals of LaNiIn. Electrical resistivity and specific heat measurements concur with the results of Density Functional Theory (DFT)…
Ising superconductivity and magnetism in NbSe
Darshana Wickramaratne, Sergii Khmelevskyi, Daniel F. Agterberg +1
Recent studies on superconductivity in NbSe have demonstrated a large anisotropy in the superconducting critical field when the material is reduced to a single monolayer. Motiv…
SrRuO-SrTiO heterostructure as a possible platform for studying unconventional superconductivity in SrRuO
Bongjae Kim, Sergii Khmelevskyi, Cesare Franchini +2
There is intense controversy around the unconventional superconductivity in strontium ruthenate, where the various theoretical and experimental studies suggest diverse and mutually…
Novel Fe-based superconductor LaFe2As2 in comparison with traditional pnictides
I. I. Mazin, Makoto Shimizu, Nayuta Takemori +1
The recently discovered Fe-based superconductor (FeBS) LaFe2As2 seems to break away from an established pattern that doping FeBS beyond 0.2e/Fe destroys superconductivity. LaFe2As2…
Detecting sign-changing superconducting gap in LiFeAs using quasiparticle interference
D. Altenfeld, P. J. Hirschfeld, I. I. Mazin +1
Using a realistic ten-orbital tight-binding model Hamiltonian fitted to the angle-resolved photoemission (ARPES) data on LiFeAs, we analyze the temperature, frequency, and momentum…
Frustration-driven C4 symmetric orders in a hetero-structured iron-based superconductor
Jong Mok Ok, S. -H. Baek, C. Hoch +11
A subtle balance between competing interactions in strongly correlated systems can be easily tipped by additional interfacial interactions in a heterostructure. This often induces…
Experimental Demonstration of the Sign Reversal of the Order Parameter in (Li1-xFex)OHFe1-yZnySe
Zengyi Du, Xiong Yang, Dustin Altenfeld +8
Iron pnictides are the only known family of unconventional high-temperature superconductors besides cuprates. Until recently, it was widely accepted that superconductivity is spin-…