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We unravel the origin of current-induced magnetic switching of insulating antiferromagnet/heavy metal systems. We utilize concurrent transport and magneto-optical measurements to image the switching of antiferromagnetic domains in specially…

Materials Science · Physics 2020-12-15 H. Meer , F. Schreiber , C. Schmitt , R. Ramos , E. Saitoh , O. Gomonay , J. Sinova , L. Baldrati , M. Kläui

We develop an electrokinetic technique that continuously manipulates colloidal particles to concentrate into patterned particulate groups in an energy efficient way, by exclusive harnessing of the intrinsic Joule heating effects. Our…

Applied Physics · Physics 2019-04-17 Golak Kunti , Jayabrata Dhar , Anandaroop Bhattacharya , Suman Chakraborty

The fluctuation induced diamagnetism of underdoped high temperature superconductors is studied in the framework of the Lawrence-Doniach model. By taking into account the fluctuations of the phase of the order parameter only, the latter…

Superconductivity · Physics 2009-11-07 Alain Sewer , Hans Beck

We reveal a novel source of giant Nernst response exhibiting strong non-linear temperature and magnetic field dependence including the mysterious tilted-hill temperature profile observed in a pleiad of materials. The phenomenon results…

Strongly Correlated Electrons · Physics 2010-03-12 Panagiotis Kotetes , Georgios Varelogiannis

We model the charge, spin, and heat currents in ferromagnetic metal$|$normal metal$|$normal metal trilayer structures in the two current model, taking into account bulk and interface thermoelectric properties as well as Joule heating.…

A qubit sensor with an electric dipole moment acquires an additional contribution to its depolarization rate when it is placed in the vicinity of a polar or dielectric material as a consequence of electrical noise arising from polarization…

A classical model is presented for persistent currents in superconductors. Their existence is argued to be warranted because their decay would violate the second law of thermodynamics. This conclusion is achieved by analyzing comparatively…

General Physics · Physics 2019-04-03 Jacob Szeftel , Nicolas Sandeau , Michel Abou Ghantous

We determine the temperature profile in magnetic nanocontacts submitted to the very large current densities that are commonly used for spin-torque oscillator behavior. Experimentally, the quadratic current-induced increase of the resistance…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 Sébastien Petit-Watelot , Ruben Miguel Otxoa , Mauricio Manfrini , Wim Van Roy , Liesbet Lagae , Joo-Von Kim , Thibaut Devolder

The metamagnetic transition between the antiferromagnetic and paramagnetic state in UIrGe has been studied at various temperatures by magnetization, heat capacity and magnetocaloric-effect measurements on a single crystal in static and…

The interaction between two different materials can present novel phenomena that are quite different from the physical properties observed when each material stands alone. Strong electronic correlations, such as magnetism and…

The theory of anomalous Hall effect for the heat transfer in a paramagnetic dielectric, discovered experimentally in [1], is developed. The appearance of the phonon heat flux normal to both the temperature gradient and the magnetic field is…

Other Condensed Matter · Physics 2009-11-13 Yu. Kagan , L. A. Maksimov

We found signatures of current-induced sliding motion in helimagnetic $\mathrm{Mn}\mathrm{Au}_2$ thin films. An abrupt change in differential resistivity occurred at a threshold bias current in the helimagnetic state, whereas it was absent…

Materials Science · Physics 2025-02-13 Yuta Kimoto , Hidetoshi Masuda , Takeshi Seki , Yoichi Nii , Jun-ichiro Ohe , Yusuke Nambu , Yoshinori Onose

Moir\'e materials are artificial crystals formed at van der Waals heterojunctions that have emerged as a highly tunable platform to realize much of the rich quantum physics of electrons in atomic scale solids, also providing opportunities…

Strongly Correlated Electrons · Physics 2024-01-24 Pawel Potasz , Nicolás Morales-Durán , Nai Chao Hu , Allan H. MacDonald

We report a heat dynamics analysis of the electrocaloric effect (ECE) in commercial multilayer capacitors based on BaTiO3 dielectric, a promising candidate for applications as a solid state cooling device. Direct measurements of the time…

Materials Science · Physics 2015-06-03 M. Quintero , F. Gomez-Marlasca , L. Ghivelder , F. Parisi

A general axion-electrodynamic formalism is presented on the phenomenological level when the environment is dielectric (permittivity and permeability assumed to be constants). Thereafter, a strong and uniform magnetic field is considered in…

High Energy Physics - Phenomenology · Physics 2022-03-23 Iver Brevik , Masud Chaichian

At a composition far above the percolation threshold, the resistance of a composite sample increases with time due to Joule heating as a constant current of sufficiently large value is passed through the sample. If the current is less than…

Soft Condensed Matter · Physics 2007-05-23 C. D. Mukherjee , K. K. Bardhan

Quantum mechanics predicts that the equilibrium state of a resistive electrical circuit contains a dissipationless current. This persistent current has been the focus of considerable theoretical and experimental work, but its basic…

Mesoscale and Nanoscale Physics · Physics 2009-06-26 A. C. Bleszynski-Jayich , W. E. Shanks , B. Peaudecerf , E. Ginossar , F. von Oppen , L. Glazman , J. G. E. Harris

Recent radioastronomical observations of Faraday rotation in the solar corona can be interpreted as evidence for coronal currents, with values as large as $2.5 \times 10^9$ Amperes (Spangler 2007). These estimates of currents are used to…

Astrophysics · Physics 2020-01-29 Steven R. Spangler

A novel method invented to measure the minute thermodynamic spin magnetization of dilute two dimensional fermions is applied to electrons in a silicon inversion layer. Interplay between the ferromagnetic interaction and disorder enhances…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 O. Prus , Y. Yaish , M. Reznikov , U. Sivan , V. Pudalov

The modeling of gamma-ray burst afterglow emission bears witness to strong electron heating in the precursor of Weibel-mediated, relativistic collisionless shock waves propagating in unmagnetized electron-ion plasmas. In this Letter, we…

High Energy Astrophysical Phenomena · Physics 2022-05-10 Arno Vanthieghem , Martin Lemoine , Laurent Gremillet
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