917 citations · 3.7k across the 40 of their papers we have counts for
40 papers
Coexistence of d-Wave Altermagnetism and Topological States in Janus FeSeX (X = S, Te) Monolayers
Alvaro Gonzalez-Garcia, William Lopez-Perez, Paola Pacheco +2
The interplay between unconventional magnetism and band topology in two-dimensional materials has emerged as an important theme in condensed matter physics. Here, we present first-…
Twist-engineering of a robust Quantum Spin Hall phase in -/flat bismuthene bilayer from first principles
Umberto Pelliccia, Alberto M. Ruiz, Diego López-Alcalá +3
Twist-engineering of topological phases in two-dimensional materials offers a powerful route to modulate electronic structure beyond conventional strain or chemical control. In par…
Emergent -wave altermagnetism in orthogonally twisted bilayer CrPS
Alberto M. Ruiz, Diego López-Alcalá, Rafael González-Hernández +1
Twistronics is a powerful strategy to engineer novel quantum states by controlling the relative orientation between layered materials. Here, we demonstrate that an orthogonally twi…
Twist-induced altermagnetism in a metallic van der Waals antiferromagnet
Alberto M. Ruiz, Andrei Shumilin, Rafael González-Hernández +1
Altermagnetism -a magnetic state characterized by spin-polarized electronic bands at zero net magnetization- offers a promising route for next-generation spintronic devices. In two…
Fermi-surface studies of altermagnetic CrSb from Shubnikov-de Haas oscillations
Sajal Naduvile Thadathil, Beat Valentin Schwarze, Jaafar Ansari +14
Within the family of altermagnets, CrSb is a metallic, collinearly ordered material that exhibits particularly strong symmetry-induced spin splitting in its band structure. In this…
Direct demonstration of time-reversal-symmetry-breaking spin injection from a compensated magnet
Jone Mencos, Antonin Badura, Eoin Dolan +21
The injection, propagation and detection of spin currents are essential physical processes in spintronics. So far, the separation of charge and spin currents was facilitated by the…
Fermi Surface Reconstruction and Anisotropic Linear Magnetoresistance in the Charge Density Wave Topological Semimetal TaTe4
D. Silvera-Vega, J. Rojas-Castillo, E. Herrera-Vasco +7
Understanding the interplay between topology and correlated electron states is central to the study of quantum materials. TaTe is a quasi-one-dimensional charge density wave (C…
Tuning the Topological Properties of the Antiferromagnetic V(BiSb)Te via Sb concentration
D. A-León, D. A. Landínez Téllez, J. Roa-Rojas +1
The investigation of topological materials has uncovered groundbreaking phases of matter with significant implications for quantum technologies. Here, we explore the antiferromagne…
Model Hamiltonian for Altermagnetic Topological Insulators
Rafael Gonzalez-Hernandez, Bernardo Uribe
We present models of topological insulating Hamiltonians exhibiting intrinsic altermagnetic features, protected by combined three-fold or four-fold rotational symmetries with time-…
Chiral symmetry and magnetism in a 3D Kagome lattice: RPtB (R = La and Nd) prototype crystals
C. E. Ardila-Gutiérrez, D. Torres-Amaris, Rafael González-Hernández +2
Chirality in crystals arises from the exclusive presence of proper symmetry operations, such as rotations and screw axes, while lacking improper operations like inversion, mirror p…
Eightfold Degenerate Dirac Nodal Line in Collinear Antiferromagnet MnSi
Victor Mendoza-Estrada, Rafael González-Hernández, Bernardo Uribe +1
We study the electronic, magnetic, and spin transport properties of the orthorhombic MnSi compound in the phase using symmetry analysis and ab-initio calculations…
Spin and pair density waves in 2D altermagnetic metals
Nikolaos Parthenios, Pietro M. Bonetti, Rafael González-Hernández +3
Altermagnetism, a recently proposed and experimentally confirmed class of magnetic order, features collinear compensated magnetism with unconventional d-, g-, or i-wave spin order.…
Spin Chern number in altermagnets
Rafael Gonzalez-Hernandez, Higinio Serrano, Bernardo Uribe
This work explores the topological properties of altermagnets, a novel class of collinear magnetic materials. We employ equivariant K-theory of magnetic groups and Hamiltonian mode…
Spin-orbit coupling effects in single-layer phosphorene
Mayra Peralta, Dennis A. Freire, Rafael González-Hernández +1
The electronic band structure of monolayer phosphorene is thoroughly studied by considering the presence of spin-orbit interaction. We employ a multiorbital Slater-Koster tight-bin…
On the average spin Chern number
Rafael Gonzalez-Hernandez, Bernardo Uribe
In this work, we propose the average spin Chern number (ASCN) as an indicator of the topological significance of the spin degree of freedom within insulating materials. Whenever th…
Observation of the anomalous Nernst effect in altermagnetic candidate Mn5Si3
Antonin Badura, Warlley H. Campos, Venkata K. Bharadwaj +20
The anomalous Nernst effect generates transverse voltage to the applied thermal gradient in magnetically ordered systems. The effect was previously considered excluded in compensat…
Non-relativistic torque and Edelstein effect in noncollinear magnets
Rafael González-Hernández, Philipp Ritzinger, Karel Výborný +2
The Edelstein effect is the origin of the spin-orbit torque: a current-induced torque that is used for the electrical control of ferromagnetic and antiferromagnetic materials. This…
Revealing the Altermagnetism in Hematite via XMCD Imaging and Anomalous Hall Electrical Transport
Edgar Galindez-Ruales, Rafael Gonzalez-Hernandez, Christin Schmitt +16
Altermagnets are a class of magnetic materials that exhibit unconventional transport properties, such as an anomalous Hall effect, despite having compensated sublattice magnetic mo…
Induced Monolayer Altermagnetism in MnP(S,Se) and FeSe
Igor Mazin, Rafael González-Hernández, Libor Šmejkal
Altermagnets (AM) are a recently discovered third class of collinear magnets, distinctly different from conventional ferromagnets (FM) and antiferromagnets (AF). AM have been activ…
Spin Weyl Topological Insulators
Rafael Gonzalez-Hernandez, Bernardo Uribe
The quantum nature of electron spin is crucial for establishing topological invariants in real materials. Since the spin does not in general commute with the Hamiltonian, some of t…
Altermagnetic lifting of Kramers spin degeneracy
J. Krempaský, L. Šmejkal, S. W. D'Souza +20
Lifted Kramers spin-degeneracy has been among the central topics of condensed-matter physics since the dawn of the band theory of solids. It underpins established practical applica…
Observation of the anomalous Hall effect in a layered polar semiconductor
Seo-Jin Kim, Jihang Zhu, Mario M. Piva +10
Progress in magnetoelectric materials is hindered by apparently contradictory requirements for time-reversal symmetry broken and polar ferroelectric electronic structure in common…
Fermi surface of magnetic kagome compound GdV6Sn6 investigated using de Haas van Alphen Oscillations
C. Dhital, G. Pokharel, B. Wilson +6
The shape of the Fermi surface, and the cyclotron effective mass of the kagome magnet GdV6Sn6 charge carriers are investigated using de Haas van Alphen (dHvA) oscillations measurem…
Multi-k magnetic structure and large anomalous Hall effect in candidate magnetic Weyl semimetal NdAlGe
C. Dhital, R. L. Dally, R. Ruvalcaba +15
The magnetic structure, magnetoresistance, and Hall effect of non-centrosymmetric magnetic semimetal NdAlGe are investigated revealing an unusual magnetic state and anomalous trans…