A5014923130- Physics of Superconductivity and Magnetism
- Advanced Condensed Matter Physics
- Quantum and electron transport phenomena
- Magnetic properties of thin films
- Rare-earth and actinide compounds
- Magnetic Properties of Alloys
- Iron-based superconductors research
- Magnetic and transport properties of perovskites and related materials
- Quantum Chromodynamics and Particle Interactions
- Magnetic Properties and Applications
- Multiferroics and related materials
- Superconducting Materials and Applications
- Magneto-Optical Properties and Applications
- Atomic and Subatomic Physics Research
- Topological Materials and Phenomena
- Magnetic Field Sensors Techniques
Norwegian University of Science and Technology
2022-2025
A novel class of antiferromagnets, dubbed altermagnets, exhibit a nonrelativistically spin-split band structure reminiscent the order parameter phase $d$-wave superconductors, despite absence net magnetization. This unique characteristic enables utilization in cryogenic stray-field-free memory devices, offering possibility achieving high storage densities. We here determine how proximate altermagnet influences critical temperature ${T}_{c}$ conventional $s$-wave singlet superconductor....
Spin Seebeck effect refers to the creation of spin currents due a temperature gradient in magnetic materials or across magnet-normal metal interfaces, which can be electrically detected through inverse Hall when contact with heavy metals. It offers fundamental insights into properties materials, including phase transition, static order, and magnon excitations. The behavior spin-flop transition has been extensively studied, whereas spin-flip remains poorly understood. Here, we demonstrate...
New unconventional compensated magnets with a $p$-wave spin polarization protected by composite time-reversal translation symmetry have been proposed in the wake of altermagnets. To facilitate experimental discovery and applications these magnets, we construct an effective analytical model. The model is based on minimal tight-binding for that clarifies relation to other spin-polarized bands. One most prominent advantages our possibility employ various approaches while capturing essential...
Antiferromagnets are promising candidates as active components in spintronic applications. They share features with ferrimagnets that opposing spin orientations exist two or more sublattices. Spin transfer torque and pumping essential ingredients antiferromagnetic ferrimagnet spintronics. This paper develops an out-of-equilibrium quantum theory of the dynamics collinear magnets containing many spins coupled to normal metal reservoirs. At equilibrium, parallel antiparallel easy axis. The...
Conducting altermagnets have recently emerged as intriguing materials supporting strongly spin-polarized currents without magnetic stray fields. We demonstrate that enable three key functionalities, merging superconductivity and spintronics. The first prediction is a controllable supercurrent-induced edge magnetization, which acts like dissipationless spin-splitter effect. second third predictions are Cooper pair filtering effect, respectively. These effects allow for spatial separation of...
Antiferromagnets are promising candidates as active components in spintronic applications. They share features with ferrimagnets that opposing spin orientations exist two or more sublattices. Spin-transfer torque and pumping essential ingredients antiferromagnetic ferrimagnet spintronics. This paper develops an out-of-equilibrium quantum theory of the dynamics collinear magnets containing many spins coupled to normal metal reservoirs. At equilibrium, parallel antiparallel easy axis. The...
New unconventional compensated magnets have been discovered in the wake of altermagnets. We introduce a minimal tight-binding model with spin-split $p$-wave band structure, clarifying relation between and helimagnets. Motivated by model, we construct an effective suitable for analytical calculations. evaluate tunneling conductance junctions magnets, revealing large magnetoresistance despite absence net magnetization. The bulk transport properties reveal anisotropic spin conductivity beyond...
<title>Abstract</title> Spin Seebeck effect (SSE) refers to the creation of spin currents due a temperature gradient in magnetic materials or across magnet-normal metal interfaces, which can be electrically detected through inverse Hall (ISHE) when contact with heavy metals. It offers fundamental insights into properties materials, including phase transition, static order, and magnon excitations. However, SSE van der Waals antiferromagnet is still elusive, especially spin-flip transition....
The symmetry requirements for realizing unconventional compensated magnets with spin-polarized bands such as altermagnets have recently been uncovered. most recent addition to this family of is parity-odd or $p$-wave magnets. We demonstrate that are perfectly compatible superconductivity due the spin polarization their electron and they induce unexpected transport phenomena. first show magnetism can coexist conventional regardless magnitude splitting. then predict a charge-to-spin...
A novel class of antiferromagnets, dubbed altermagnets, exhibit a non-relativistically spin-split band structure reminiscent $d$-wave superconductors, despite the absence net magnetization. This unique characteristic enables utilization in cryogenic stray-field-free memory devices, offering possibility achieving high storage densities. In this Letter, we determine how proximate altermagnet influences critical temperature $T_c$ conventional $s$-wave singlet superconductor. Considering both...
The odd-frequency superconducting state appears generally in hybrid structures consisting of conventional superconductors and other materials, features electrons that form temporally non-local Cooper pairs. quasiclassical theory superconductivity has been extensively used to model such systems, finding many cases excellent agreement with experimental measurements. Therefore, it is interest study effective models predict new phenomena associated this unconventional pairing. We establish...
The odd-frequency superconducting state appears generally in hybrid structures consisting of conventional superconductors and other materials, features electrons that form temporally nonlocal Cooper pairs. quasiclassical theory superconductivity has been extensively used to model such systems, finding many cases excellent agreement with experimental measurements. Therefore, it is interest study effective models predict new phenomena associated this unconventional pairing. We establish...