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Iron-based superconductors have been found to exhibit an intimate interplay of orbital, spin, and lattice degrees of freedom, dramatically affecting their low-energy electronic properties, including superconductivity. Albeit the precise…

We present a framework for analyzing Mott insulators using a material-based tight-binding model. We start with a realistic multiorbital Hubbard model and derive an effective model for the localized electrons through the second-order…

Strongly Correlated Electrons · Physics 2024-03-20 Ryuta Iwazaki , Hiroshi Shinaoka , Shintaro Hoshino

THz generation from femtosecond photoexcited spintronic heterostructures has recently become a versatile tool for investigating ultrafast spin-transport and transient charge-current in a non-contact and non-invasive manner. The same from…

Materials Science · Physics 2023-12-12 Sandeep Kumar , Sunil Kumar

Spintronic Terahertz emitters, based on optically triggered spin-to-charge interconversion processes, have recently emerged as novel route towards compact and efficient THz sources. Yet, the next challenge for further…

We study inverse spin and orbital Hall effects in 19 transition metals using spin-pumping driven by ferromagnetic resonance. Spin-to-charge conversion was measured in YIG/X(5), while orbital-to-charge conversion was probed in YIG/Pt(2)/X(5)…

Mesoscale and Nanoscale Physics · Physics 2025-06-24 J. L. Costa , E. Santos , J. B. S. Mendes , A. Azevedo

We investigate the altermagnetic properties of strongly-correlated transition metal oxides considering the family of the quasi two-dimensional A2BO4 and three-dimensional ABO3. As a test study, we analyze the Mott insulators Ca2RuO4 and…

Strongly Correlated Electrons · Physics 2023-09-06 Giuseppe Cuono , Raghottam M. Sattigeri , Jan Skolimowski , Carmine Autieri

The interaction of oxygen with cobalt and cobalt-based alloys has been a very important topic in the field of spintronics as it leads to enhanced orbital anisotropy and interfacial Dzyaloshinskii-Moriya interaction (DMI), which are crucial…

The magnetic Gilbert damping and spin-orbital to charge interconversion phenomenon play vital role in controlling the modern spintronics device performances. Though the ferromagnets (FMs) and heavy metals (HMs) are considered to be the key…

Mesoscale and Nanoscale Physics · Physics 2024-11-05 Antarjami Sahoo , Swayang Priya Mahanta , Subhankar Bedanta

Spin-orbit torques due to interfacial Rashba and spin Hall effects have been widely considered as a potentially more efficient approach than the conventional spin-transfer torque to control the magnetization of ferromagnets. We report a…

Materials Science · Physics 2022-09-07 Liupeng Yang , Yining Fei , Kaiyuan Zhou , Lina Chen , Qingwei Fu , Liyuan Li , Cunjie Yan , Haotian Li , Youwei Du , Ronghua Liu

We derive an effective low-energy Hamiltonian for potassium loaded zeolite A, a unique ferromagnet from non-magnetic elements. We perform ab initio density functional calculations and construct maximally localized Wannier functions for…

Strongly Correlated Electrons · Physics 2011-11-23 Yoshiro Nohara , Kazuma Nakamura , Ryotaro Arita

Pairing of $\pi$ electronic state structures with functional or metallic atoms makes them possible to engineer physical and chemical properties. Herein, we predict the reorientation of magnetization of Co on hexagonal BN (h-BN) and graphene…

Materials Science · Physics 2025-04-28 D. Odkhuu , T. Tsevelmaa , P. Taivansaikhan , N. Park , S. C. Hong , S. H. Rhim

Materials with spin-orbit coupling are of great interest for various spintronics applications due to the efficient electrical generation and detection of spin-polarized electrons. Over the past decade, many materials have been studied,…

By means of ab initio calculations and spin-polarized scanning tunneling microscopy experiments we show how to manipulate the local spin-polarization of a ferromagnetic surface by creating a complex energy dependent magnetic structure. We…

We study the effects of an orbital magnetic field on the Mott metal-insulator transition in the Hubbard-Hofstadter model. We demonstrate that sufficiently large magnetic fields induce a Mott insulator-to-metal phase transition supporting…

Strongly Correlated Electrons · Physics 2025-10-28 Georg Rohringer , Anton A. Markov

In this work, we study the effects of a transverse magnetic field in a Kondo lattice model with two $f$ orbitals interacting with the conduction electrons. The $f$ electrons that are present on the same site interact through Hund's…

Strongly Correlated Electrons · Physics 2023-08-16 Christopher Thomas , Sébastien Burdin , Claudine Lacroix

The Rashba-Edelstein effect stems from the interaction between the electron's spin and its momentum induced by spin-orbit interaction at an interface or a surface. It was shown that the inverse Rashba-Edelstein effect can be used to convert…

Mesoscale and Nanoscale Physics · Physics 2016-06-27 M. B. Jungfleisch , W. Zhang , J. Sklenar , W. Jiang , J. E. Pearson , J. B. Ketterson , A. Hoffmann

We study the importance of interband effects on the orbital susceptibility of three bands $\alpha$-${\cal T}_3$ tight-binding models. The particularity of these models is that the coupling between the three energy bands (which is encoded in…

Quantum Gases · Physics 2015-04-30 F. Piéchon , J-N. Fuchs , A. Raoux , G. Montambaux

Orbital currents have recently emerged as a promising tool to achieve electrical control of the magnetization in thin-film ferromagnets. Efficient orbital-to-spin conversion is required in order to torque the magnetization. Here we show…

Materials Science · Physics 2024-07-01 Shilei Ding , Min-Gu Kang , William Legrand , Pietro Gambardella

It was experimentally observed that both magnetic anisotropy and spin-orbit interaction strength change when the magnetization of the nanomagnet is reversed. This indicates a variation in spin-orbit interaction strength depending on whether…

Mesoscale and Nanoscale Physics · Physics 2024-07-10 Vadym Zayets

We propose a novel interaction-based route to half-metal state for interacting electrons on two-dimensional lattices. Magnetic field applied parallel to the lattice is used to tune one of the spin densities to a particular commensurate with…

Strongly Correlated Electrons · Physics 2013-04-16 Zhihao Hao , Oleg A. Starykh