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Superconductivity and magnetic order strongly compete in many conventional superconductors, at least partly because both tend to gap the Fermi surface. In magnetically-ordered conventional superconductors, the competition between these…

Strongly Correlated Electrons · Physics 2017-03-29 D. G. Mazzone , R. Sibille , M. Bartkowiak , J. L. Gavilano , C. Wessler , M. Månsson , M. Frontzek , O. Zaharko , J. Schefer , M. Kenzelmann

Neutron spectroscopy is used to investigate the magnetic fluctuations in Fe_{1+x}Te - a parent compound of chalcogenide superconductors. Incommensurate "stripe-like" excitations soften with increased interstitial iron concentration. The…

Strongly Correlated Electrons · Physics 2015-06-22 C. Stock , E. E. Rodriguez , O. Sobolev , J. A. Rodriguez-Rivera , R. A. Ewings , J. W. Taylor , A. D. Christianson , M. A. Green

We theoretically investigate laser-induced spin transport in metallic magnetic heterostructures using an effective spin transport description that treats itinerant electrons and thermal magnons on an equal footing. Electron-magnon…

Mesoscale and Nanoscale Physics · Physics 2022-04-27 Maarten Beens , Rembert A. Duine , Bert Koopmans

Control and detection of spin order in ferromagnets is the main principle allowing storing and reading of magnetic information in nowadays technology. The large class of antiferromagnets, on the other hand, is less utilized, despite its…

Materials Science · Physics 2019-09-23 P. Nemec , M. Fiebig , T. Kampfrath , A. V. Kimel

We theoretically propose a new route to control magnetic and topological orders in a broad class of insulating magnets with a DC electric field. We show from the strong-coupling expansion that magnetic exchange interactions along the…

Strongly Correlated Electrons · Physics 2019-08-28 Kazuaki Takasan , Masahiro Sato

We have used resonant x-ray diffraction to develop a detailed description of antiferromagnetic ordering in epitaxial superlattices based on two-unit-cell thick layers of the strongly correlated metal LaNiO3. We also report reference…

Altermagnets with pronounced spin-splitting band structure, unconventional magnetic and crystal symmetries, and exotic magneto-transport properties have received immense interest in cutting-edge spintronics, materials science, and condensed…

Detailed knowledge of the phase diagram and the nature of the competing magnetic and superconducting phases is imperative for an understanding of the physics of iron-based superconductivity. Here, we show using thermodynamic probes that the…

Superconductivity · Physics 2015-08-19 A. E. Böhmer , F. Hardy , L. Wang , T. Wolf , P. Schweiss , C. Meingast

Multifunctional materials can exhibit emergent behavior from the coupling of two or more different properties. For example, coupling between magnetic and ferroelectric order enables electrical control of the magnetic state, enabling for…

Spin-orbit coupling in magnetic systems lacking inversion symmetry can give rise to non trivial spin textures. Magnetic thin films and heterostructures are potential candidates for the formation of skyrmions and other non-collinear spin…

Strongly Correlated Electrons · Physics 2018-10-29 S. Valencia , M. J. Calderón , L. López-Mir , Z. Kostantinovic , E. Schierle , E. Weschke , L. Brey , B. Martínez , Ll. Balcells

Compensated magnetic orders that can split the spin-degeneracy of electronic bands have become a very active field of research. As opposed to spin-orbit coupling, the splitting resulting from these "altermagnets" is not a small relativistic…

Mesoscale and Nanoscale Physics · Physics 2026-01-08 Saurav Sachin , Mathias S. Scheurer , Constantin Schrade , Sujit Manna

Creating new interfacial magnetic states with desired functionalities is attractive for fundamental studies and spintronics applications. The emergence of interfacial magnetic phases demands the fabrication of pristine interfaces and the…

Toroidal order, given by a composite of electric and magnetic orders, manifests itself not only in the peculiar magnetism but also in anomalous transport and magnetoelectric effect. We report our theoretical results on the influence and…

Strongly Correlated Electrons · Physics 2014-08-05 Satoru Hayami , Hiroaki Kusunose , Yukitoshi Motome

Antiferromagnets are outstanding candidates for the next generation of spintronic applications, with great potential for downscaling and decreasing power consumption. Recently, the manipulation of bulk properties of antiferromagnets has…

Applied Physics · Physics 2020-02-05 X. H. Liu , K. W. Edmonds , Z. P. Zhou , K. Y. Wang

Recently, altermagnets have emerged as promising candidates in spintronics, uniquely combining large spin-polarized electronic states with zero net magnetization. A prominent example is $\alpha$-MnTe, whose altermagnetic spin splitting,…

The ability to tune the iron chalcogenides BaFe2Q3 from Mott insulators, to metals and then superconductors with applied pressure has renewed interest in low-dimensional iron chalcogenides and oxychalcogenides. We report here a combined…

Strongly Correlated Electrons · Physics 2019-07-31 B. D. Coles , A. D. Hillier , F. C. Coomer , N. C. Bristowe , S. Ramos , E. E. McCabe

Metals hosting gradually varying spatial magnetic textures are attracting attention as a new class of inductor. Under the application of an alternating current, the spin-transfer-torque effect induces oscillating dynamics of the magnetic…

Materials Science · Physics 2023-11-27 Soju Furuta , Wataru Koshibae , Fumitaka Kagawa

We attribute the structural phase transition (SPT) in the parent compounds of the iron pnictides to orbital ordering. Due to the anisotropy of the $d_{xz}$ and $d_{yz}$ orbitals in the $xy$ plane, a ferro-orbital ordering makes the…

Strongly Correlated Electrons · Physics 2013-05-29 Weicheng Lv , Jiansheng Wu , Philip Phillips

We analyze magnetic order in iron-chalcogenide Fe$_{1+y}$Te -- the parent compound of high-temperature superconductor Fe$_{1+y}$Te$_{1-x}$Se$_x$. Neutron scattering experiments show that magnetic order in this material contains components…

Strongly Correlated Electrons · Physics 2015-06-05 Samuel Ducatman , Natalia B. Perkins , Andrey Chubukov

Pyrochlore oxides possessing "all-in-all-out" spin ordering have attracted burgeoning interest as a rich ground of emergent states. This ordering has two distinct types of magnetic domains (all-in-all-out or all-out-all-in) with broken…

Materials Science · Physics 2016-03-09 T. C. Fujita , M. Uchida , Y. Kozuka , W. Sano , A. Tsukazaki , T. Arima , M. Kawasaki
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