324 citations · 850 across the 30 of their papers we have counts for
30 papers
Nonlinear Magnon Magnetic Moment Transport in Triangular-Lattice f-Wave Antialtermagnets
Volodymyr P. Kravchuk, Kostiantyn V. Yershov, Bastián Pradenas +6
We study the spin excitations in the frustrated coplanar 120-degree ground state of the triangular-lattice Heisenberg antiferromagnet and demonstrate that they carry a magnetic mom…
Odd-Parity-Wave Magnons and Nonrelativistic Thermal Edelstein Effect
Robin R. Neumann, Rodrigo Jaeschke-Ubiergo, Ricardo Zarzuela +3
Odd-parity-wave magnets are noncollinear compensated magnets with spin-split band structure in the absence of spin-orbit coupling and dipolar interactions. In contrast to altermagn…
Atomic Altermagnetism
Rodrigo Jaeschke-Ubiergo, Venkata-Krishna Bharadwaj, Warlley Campos +6
Altermagnetism has been recently experimentally verified by photoemission mapping of the spin order in momentum space in MnTe and CrSb, which feature two anisotropic sublattices wi…
Transport theory and spin-transfer physics in d-wave altermagnets
Ricardo Zarzuela, Rodrigo Jaeschke-Ubiergo, Olena Gomonay +2
We develop a mesoscale transport theory for the charge and spin degrees of freedom of itinerant carriers in a -wave altermagnet. Our effective Lagrangian description is built up…
Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers
Takaaki Dohi, Mona Bhukta, Fabian Kammerbauer +12
A hybrid chiral skyrmion tube is a well-known example of a 3D topological spin texture, exhibiting an intriguing chirality transition along the thickness direction. This transition…
Non-Abelian Gauge Theory for Magnons in Topologically Textured Frustrated Magnets
Ricardo Zarzuela, Se Kwon Kim
We develop an effective gauge theory for three-flavored magnons in frustrated magnets hosting topological textures with the aid of the quaternion representation of the SO(3) order…
Homochiral antiferromagnetic merons, antimerons and bimerons realized in synthetic antiferromagnets
Mona Bhukta, Takaaki Dohi, Venkata Krishna Bharadwaj +7
The ever-growing demand for device miniaturization and energy efficiency in data storage and computing technology has prompted a shift towards antiferromagnetic (AFM) topological s…
Spin-transfer and Topological Hall Effects as Novel Probes for Magnetic Disclinations in Frustrated Magnets
Ricardo Zarzuela, Jairo Sinova
Magnetic frustrated systems have resurged in spintronics as optimal candidates for hosting three dimensional topological solitons, such as Shankar skyrmions and 4-vortices, and…
Transport theory and spin-transfer physics for frustrated magnets
Ricardo Zarzuela, Jairo Sinova
We study the electron dynamics in magnetic conductors with frustrated interactions dominated by isotropic exchange. We present a transport theory for itinerant carriers built upon…
Self-induced spin-orbit torques in metallic ferromagnets
Hector Ochoa, Ricardo Zarzuela, Yaroslav Tserkovnyak
We present a phenomenological theory of spin-orbit torques in a metallic ferromagnet with spin-relaxing boundaries. The model is rooted in the coupled diffusion of charge and spin…
Dynamically stabilized spin superfluidity in frustrated magnets
Ricardo Zarzuela, Daniel Hill, Jairo Sinova +1
We study the onset of spin superfluidity, namely coherent spin transport mediated by a topological spin texture, in frustrated exchange-dominated magnetic systems, engendered by an…
Stability and dynamics of in-plane skyrmions in collinear ferromagnets
Ricardo Zarzuela, Venkata Krishna Bharadwaj, Kyoung-Whan Kim +2
We study the emergence and dynamics of in-plane skyrmions in collinear ferromagnetic heterostructures. We present a minimal energy model for this class of magnetic textures, determ…
Hydrodynamics of three-dimensional skyrmions in frustrated magnets
Ricardo Zarzuela, Héctor Ochoa, Yaroslav Tserkovnyak
We study the nucleation and collective dynamics of Shankar skyrmions [R. Shankar, Journal de Physique 38, 1405 (1977)] in the class of frustrated magnetic systems described by an S…
Stabilization of the skyrmion crystal phase in thin-film antiferromagnets
Ricardo Zarzuela, Se Kwon Kim, Yaroslav Tserkovnyak
We investigate the formation and stability of the skyrmion crystal phase in antiferromagnetic thin films subjected to fieldlike torques such as, e.g., those induced by an electric…
Antidamping torque-induced switching in biaxial antiferromagnetic insulators
X. Z. Chen, R. Zarzuela, J. Zhang +8
We investigate the current-induced switching of the Neel order in NiO(001)/Pt heterostructures,which is manifested electrically via the spin Hall magnetoresistance. Significant rev…
Spin hydrodynamics in amorphous magnets
Hector Ochoa, Ricardo Zarzuela, Yaroslav Tserkovnyak
Spin superfluidity, i.e., coherent spin transport mediated by topologically stable textures, is limited by parasitic anisotropies rooted in relativistic interactions and spatial in…
Magnetoelectric antiferromagnets as platforms for the manipulation of solitons
Ricardo Zarzuela, Se Kwon Kim, Yaroslav Tserkovnyak
We study the magnetic dynamics of magnetoelectric antiferromagnetic thin films, where an unconventional boundary ferromagnetism coexists with the bulk Néel phase below the Néel tem…
Switching of Magnetic Moments of Nanoparticles by Surface Acoustic Waves
J. Tejada, E. M. Chudnovsky, R. Zarzuela +4
We report evidence of the magnetization reversal in nanoparticles by surface acoustic waves (SAWs). The experimental system consists of isolated magnetite nanoparticles dispersed o…
Antiferromagnetic textures and dynamics on the surface of a heavy metal
Ricardo Zarzuela, Yaroslav Tserkovnyak
We investigate the formation and dynamics of spin textures in antiferromagnetic insulators adjacent to a heavy-metal substrate with strong spin-orbit interactions. Exchange couplin…
Emergent gauge fields from curvature in single layers of transition-metal dichalcogenides
Hector Ochoa, Ricardo Zarzuela, Yaroslav Tserkovnyak
We analyze the electron dynamics in corrugated layers of transition-metal dichalcogenides. Due to the strong spin-orbit coupling, the intrinsic (Gaussian) curvature leads to an eme…
A Realization of the Haldane-Kane-Mele Model in a System of Localized Spins
Se Kwon Kim, Héctor Ochoa, Ricardo Zarzuela +1
We theoretically study a spin Hamiltonian for spin-orbit-coupled ferromagnets on the honeycomb lattice. We find that the effective Hamiltonian for magnons, a quanta of spin-wave ex…
Narrow Zero-Field Tunneling Resonance in Triclinic Mn Acetate Ribbons
I. Imaz, J. Espin, D. Maspoch +4
We report synthesis, structural characterization, and magnetic measurements of amorphous Mn-acetate ribbons with a triclinic short-range crystal order not previously seen in…
Enhanced spin tunneling in a molecular magnet mixed with a superconductor
J. Tejada, R. Zarzuela, A. García-Santiago +4
We report characterization and magnetic studies of mixtures of micrometer-size ribbons of Mn acetate and micrometer-size particles of YBaCuO superconductor. Extremely narrow…
Acoustic waves generated by the spin precession
R. Zarzuela, E. M. Chudnovsky
We study generation of acoustic waves by a precessing spin of a nanoparticle deposited on the surface of a solid. Our approach elucidates macroscopic dynamics of the Einstein - de…