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We report the signatures of dynamic spin fluctuations in the layered honeycomb Li$_3$Cu$_2$SbO$_6$ compound, with a 3$d$ S = 1/2 $d^9$ Cu$^{2+}$ configuration, through muon spin rotation and relaxation ($\mu$SR) and neutron scattering…

A scheme for making ab-initio calculations of the dynamic paramagnetic spin susceptibilities of solids at finite temperatures is described. It is based on Time-Dependent Density Functional Theory and employs an electronic multiple…

Strongly Correlated Electrons · Physics 2007-05-23 J. B. Staunton , J. Poulter , B. Ginatempo , E. Bruno , D. D. Johnson

Long-range forces between macroscopic objects are mediated by light particles that interact with the electrons or nucleons, and include spin-dependent static components as well as spin- and velocity-dependent components. We parametrize the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Bogdan A. Dobrescu , Irina Mocioiu

Recent theoretical predictions of "unprecedented proximity" of the electronic ground state of iridium fluorides to the SU(2) symmetric $j_{\mathrm{eff}}=1/2$ limit, relevant for superconductivity in iridates, motivated us to investigate…

Strongly Correlated Electrons · Physics 2017-09-27 M. Rossi , M. Retegan , C. Giacobbe , R. Fumagalli , A. Efimenko , T. Kulka , K. Wohlfeld , A. I. Gubanov , M. Moretti Sala

The magnetic dipole (M1) and the Gamow-Teller (GT) excitations of finite nuclei have been studied in a fully self-consistent Hartree-Fock (HF) plus random phase approximation (RPA) approach by using a Skyrme energy density functional with…

Nuclear Theory · Physics 2015-06-18 Peiwei Wen , Li-Gang Cao , J. Margueron , H. Sagawa

Time-dependent spin density functional theory (TD-SDFT) allows the theoretical description of spin and magnetization dynamics in electronic systems from first quantum mechanical principles. TD-SDFT accounts for electronic interaction…

Materials Science · Physics 2024-10-04 Jenna L. Bologa , Carsten A. Ullrich

Recently, unconventional antiferromagnets that enable the splitting of electronic spins have been theoretically proposed and experimentally realized, where the magnetic sublattices containing moments pointing at different directions are…

Spin-dependent exotic interactions can be generated by exchanging hypothetical bosons, which were introduced to solve some puzzles in physics. Many precision experiments have been performed to search for such interactions, but no confirmed…

High Energy Physics - Experiment · Physics 2023-01-10 Qian Wang , Ze Ouyang , Yu Lu , Jianbo Wang , Lin Zhu , Pengshun Luo

Recent work has demonstrated that quantum Fisher information (QFI), a witness of multipartite entanglement, and magnetic Van Hove correlations $G(r,t)$, a probe of local real-space real-time spin dynamics, can be successfully extracted from…

Strongly Correlated Electrons · Physics 2022-08-09 Pontus Laurell , Allen Scheie , D. Alan Tennant , Satoshi Okamoto , Gonzalo Alvarez , Elbio Dagotto

Small-scale magnetic flux ropes (SFRs) are a type of structures in the solar wind that possess helical magnetic field lines. In a recent report (Chen & Hu 2020), we presented the radial variations of the properties of SFR from 0.29 to 8 au…

We present polarised-neutron diffraction measurements of the Ising-like spin-chain compound Ca3Co2O6 above and below the magnetic ordering temperature TN. Below TN, a clear evolution from a single-phase spin-density wave (SDW) structure to…

Searching for physics beyond the standard model is crucial for understanding the mystery of the universe, such as the dark matter. We utilized a single spin in a diamond as a sensor to explore the spin-dependent interactions mediated by the…

Quantum Physics · Physics 2020-11-10 Xing Rong , Man Jiao , Maosen Guo , Diguang Wu , Jiangfeng Du

Using Density functional theory and non-equilibrium Green's function formalism, spin dependent electron transport in Fe/Mo$_x$Cr$_{1-x}$S$_2$/Fe magnetic tunnel junction is studied. Spin transport for different thicknesses (1, 3, 5, and 7…

Materials Science · Physics 2026-01-06 Aloka Ranjan Sahoo , Sharat Chandra

Low magnetic damping and high group velocity of spin waves (SWs) or magnons are two crucial parameters for functional magnonic devices. Magnonics research on signal processing and wave-based computation at GHz frequencies focussed on the…

Materials Science · Physics 2023-07-06 Mohammad Hamdi , Ferdinand Posva , Dirk Grundler

Spin fluctuations have a substantial influence on the electron and lattice behaviors in magnetic materials, which, however, is difficult to be tracked properly by prevalent first-principles methods. We propose a versatile self-adaptive…

Materials Science · Physics 2023-02-14 Zefeng Cai , Ke Wang , Yong Xu , Su-Huai Wei , Ben Xu

In order to study the spin density wave transition temperature (T_SDW) in (TMTSF)_2PF_6 as a function of magnetic field, we measured the magnetoresistance R_zz in fields up to 19 T. Measurements were performed for three field orientations…

Strongly Correlated Electrons · Physics 2015-05-14 Ya. A. Gerasimenko , V. A. Prudkoglyad , A. V. Kornilov , V. M. Pudalov , V. N. Zverev , A. -K. Klehe , J. S. Qualls

Self-interacting dark matter (SIDM) has been proposed as an alternative to the standard collisionless cold dark matter to explain the diversity of galactic rotation curves and core-cusp problems seen at small scales. Here, we estimate the…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-20 Gopika K. , Shantanu Desai

There currently is a large effort to explore spin-orbit effects in semiconductor structures with the ultimate goal of manipulating electron spins with gates. A search for materials with large spin-orbit coupling is therefore important. We…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 S. A. Studenikin , P. T. Coleridge , P. Poole , A. Sachrajda

While the growing utilization of polymers in flexible electronic devices has sparked significant interest in polymer/metal interfaces, spintronic studies of such interfaces remain limited. Here, we systematically study spin pumping across a…

Mesoscale and Nanoscale Physics · Physics 2025-03-31 Shiva Gaur , Akash Kumar , Himanshu Bangar , Utkarsh Shashank , Hukum Singh , Saroj P. Dash , Anubhav Raghav , Johan Åkerman

We used a torsion pendulum and rotating attractor with 20-pole electron-spin distributions to probe dipole-dipole interactions mediated by exotic pseudo-Goldstone bosons with $m_{\rm b}\leq 500 \; \mu$eV and coupling strengths up to 14…

High Energy Physics - Experiment · Physics 2015-11-11 W. A. Terrano , E. G. Adelberger , J. G. Lee , B. R. Heckel