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Two-dimensional van der Waals (vdW) magnets offer unprecedented opportunities to control magnetism at the atomic scale. Through charge carrier doping - realized by electrostatic gating, intercalation/adsorption, or interfacial charge…

We study the spin dynamics in antiferromagnetic nanowire under an applied temperature gradient using micromagnetic simulations on a classical spin model with a uniaxial anisotropy. The entropic torque driven domain-wall motion and the…

Computational Physics · Physics 2018-02-21 Zhengren Yan , Zhiyuan Chen , Minghui Qin , Xubing Lu , Xingsen Gao , Junming Liu

We study the rectification of near-field radiative heat transfer between two InSb nano-particles due to the presence of non-reciprocal surface modes in a nearby InSb sample when an external magnetic field is applied and its dependence on…

Mesoscale and Nanoscale Physics · Physics 2020-04-29 Annika Ott , Svend-Age Biehs

Magneto-optical excitations in antiferromagnetic d systems can originate from a multiplicity of light-spin and spin-spin interactions, as the light and spin degrees of freedom can be entangled. This is exemplified in van der Waals systems…

We conduct a comprehensive study of three different magnetic semiconductors, CrI$_3$, CrBr$_3$, and CrCl$_3$, by incorporating both few- and bi-layer samples in van der Waals tunnel junctions. We find that the interlayer magnetic ordering,…

The properties of quantum systems interacting with their environment, commonly called open quantum systems, can be strongly affected by this interaction. While this can lead to unwanted consequences, such as causing decoherence in qubits…

By combining the results of muon spin rotation and inelastic neutron scattering in the heavy fermion compounds Ce1-xLaxAl3 (0.0 <= x <= 0.2), we show that static magnetic correlations are suppressed above a characteristic temperature, T*,…

Strongly Correlated Electrons · Physics 2009-11-07 E. A. Goremychkin , R. Osborn , B. D. Rainford , T. A. Costi , A. P. Murani , C. A. Scott , P. J. C. King

We derive exciton-spin interactions from a microscopic correlated model that captures important aspects of the physics of charge-transfer (CT) insulators to address magnetism associated with exciton creation. We present a minimal model…

Strongly Correlated Electrons · Physics 2023-11-16 Tatsuya Kaneko , Yuta Murakami , Denis Golež , Zhiyuan Sun , Andrew J. Millis

We present an experimental study of macroscopic and microscopic magnetic anisotropy of a spin tetramer system \cso using torque magnetometry and ESR spectroscopy. Large rotation of macroscopic magnetic axes with temperature observed from…

Strongly Correlated Electrons · Physics 2016-08-08 Mirta Herak , Dijana Žilić , Dubravka Matković Čalogović , Helmuth Berger

Antiferromagnets display enormous potential in spintronics owing to its intrinsic nature, including terahertz resonance, multilevel states, and absence of stray fields. Combining with the layered nature, van der Waals (vdW) antiferromagnets…

We present a phenomenological theory for coupled spin-charge dynamics in magnetic van der Waals heterostructures. The system studied consists of a layered antiferromagnet inserted into a capacitive vdW heterostructure. It has been recently…

Mesoscale and Nanoscale Physics · Physics 2020-09-23 Avinash Rustagi , Abhishek Solanki , Yaroslav Tserkovnyak , Pramey Upadhyaya

Systems with pronounced spin anisotropy play a pivotal role in advancing magnetization switching and spin-wave generation mechanisms, which are fundamental for spintronic technologies. Quasi-van der Waals ferromagnets, particularly…

The two-dimensional molecular conductor $\kappa$-(BETS)$_2$Mn[N(CN)$_2$]$_3$ has been studied because of the intriguing magnetic coupling of the molecular $\pi$-electrons to the Mn$^{2+}$ ions. Utilizing X-band electron spin resonance…

Strongly Correlated Electrons · Physics 2026-04-15 Zhijie Huang , Marvin Schmidt , Savita Priya , Mark Kartsovnik , Natalia Kushch , Martin Dressel

Magnetic van der Waals (vdW) materials offer a fantastic platform to investigate and exploit rich spin configurations stabilized in reduced dimensions. One tantalizing magnetic order is the interlayer antiferromagnetism in A-type vdW…

The conducting state of the quasi-two-dimensional organic conductor, $\alpha$-(BEDT-TTF)$_2$I$_3$, at ambient pressure is investigated with $^{13}$C NMR measurements, which separate the local electronic states at three nonequivalent…

Materials Science · Physics 2011-10-04 Michihiro Hirata , Kyohei Ishikawa , Kazuya Miyagawa , Kazushi Kanoda

Characterizing the anisotropic structure in noncollinear antiferromagnets is essential for antiferromagnetic spintronics. In this work, we provide a microscopic theory linking the anisotropy effects induced by the rigid-body rotation of…

Materials Science · Physics 2025-07-15 Zheng Liu , Yang Gao , Qian Niu

We study the spin-density-wave instabilities in the quasi-one-dimensional conductor (TMTSF)_2ClO_4. The orientational order of the anions ClO_4 doubles the unit cell and leads to the presence of two electrnic bands at the Fermi level. From…

Strongly Correlated Electrons · Physics 2009-11-07 K. Sengupta , N. Dupuis

We show that spin anisotropy can be transferred to an isotropic system by transport of spin quadrupole moment. We derive the quadrupole moment current and continuity equation and study a high-spin valve structure consisting of two…

Mesoscale and Nanoscale Physics · Physics 2011-10-18 Michael Baumgärtel , Michael Hell , Sourin Das , Maarten R. Wegewijs

Thermoelectric transport across normal-metal/helical-multiferroic/ferromagnetic heterojunctions is theoretically investigated. We find a anisotropic charge and spin thermopower with a $C_{2v}$ symmetry. The angular dependence on the…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 Chenglong Jia , Jamal Berakdar

Spin and orbital angular momenta are two intrinsic properties of an electron and are responsible for the physics of a solid. How the spin and orbital evolve with respect to each other on several hundred femtoseconds is largely unknown, but…

Materials Science · Physics 2021-06-25 G. P. Zhang , Mingqiang Gu , Y. H. Bai , T. L. Jenkins , Thomas F. George