Results 101 to 110 of about 65,044 (378)

Terahertz‐Driven Ultrafast Dynamics of Rare‐Earth Nickelates by Controlling Only the Charge Degree of Freedom

Advanced Functional Materials, EarlyView.
The THz drive of the Mott insulating state of a rare‐earth nickelate induces instantaneous insulator‐metal transition via quantum tunneling of valence electrons across the bandgap. This transition is pure electronic and highly non‐thermal, which may find its applications in ultrafast opto‐electronics with enhanced performance and minimal device size ...
Gulloo Lal Prajapati, Sergey Kovalev, Igor Ilyakov, Atiqa Arshad, Gaurav Dubey, Ketan S. Navale, Dhanvir Singh Rana, Jan‐Christoph Deinert   +7 more
wiley   +1 more source

Observation of an anomalous Hall effect in single-crystal Mn3Pt

New Journal of Physics, 2023
The Mn _3 X family of compounds was the first in which a large anomalous Hall effect (AHE) was predicted to arise from a purely antiferromagnetic structure, due to the Berry curvature in momentum space. Nearly simultaneously with this prediction, a large
Belén E Zuniga-Cespedes, Kaustuv Manna, Hilary M L Noad, Po-Ya Yang, Michael Nicklas, Claudia Felser, Andrew P Mackenzie, Clifford W Hicks   +7 more
doaj   +1 more source

Coexistence of Antiferromagnetism and Triplet Superconductivity

, 2004
The authors discuss the possibility of coexistence of antiferromagnetism and triplet superconductivity as a particular example of a broad class of systems where the interplay of magnetism and superconductivity is important. This paper focuses on the case
de Melo, C. A. R. Sa, Zhang, Wei
core   +1 more source

Spin Glass and antiferromagnetism in Kondo lattice disordered systems [PDF]

, 2003
The competition between spin glass (SG), antiferromagnetism (AF) and Kondo effect is studied here in a model which consists of two Kondo sublattices with a gaussian random interaction between spins in differents sublattices with an antiferromagnetic mean
Coqblin, B., Magalhaes, S. G., Schmidt, A. A., Theumann, Alba, Zimmer, F. M.   +4 more
core   +2 more sources

Quantum Antiferromagnetism in Quasicrystals [PDF]

Physical Review Letters, 2003
The antiferromagnetic Heisenberg model is studied on a two-dimensional bipartite quasiperiodic lattice. The distribution of local staggered magnetic moments is determined on finite square approximants with up to 1393 sites, using the Stochastic Series Expansion Quantum Monte Carlo method. A non-trivial inhomogeneous ground state is found.
Stefan Wessel, Stefan Wessel, Anuradha Jagannathan, Anuradha Jagannathan, Stephan Haas   +4 more
openaire   +4 more sources

High‐Entropy Magnetism of Murunskite

Advanced Functional Materials, EarlyView.
The study of murunskite (K2FeCu3S4) reveals that its magnetic and orbital order emerges in a simple I4/mmm crystal structure with complete disorder in the transition metal positions. Mixed‐valence Fe ions randomly occupy 1/4 of the tetrahedral sites, with the remaining 3/4 being filled by non‐magnetic Cu+ ions.
Davor Tolj, Priyanka Reddy, Ivica Živković, Luka Akšamović, Jian Rui Soh, Kamila Komȩdera, Izabela Biało, Naveen Kumar Chogondahalli Muniraju, Trpimir Ivšić, Mario Novak, Oksana Zaharko, Clemens Ritter, Thomas LaGrange, Wojciech Tabiś, Ivo Batistić, László Forró, Henrik M. Rønnow, Denis K. Sunko, Neven Barišić   +18 more
wiley   +1 more source

Multi-spinon and antiholon excitations probed by resonant inelastic x-ray scattering on doped one-dimensional antiferromagnets

New Journal of Physics, 2018
Resonant inelastic x-ray scattering (RIXS) at the oxygen K -edge has recently accessed multi-spinon excitations in the one-dimensional antiferromagnet (1D-AFM) Sr _2 CuO _3 , where four-spinon excitations are resolved separately from the two-spinon ...
Umesh Kumar, Alberto Nocera, Elbio Dagotto, Steve Johnston   +3 more
doaj   +1 more source

Heisenberg spins on an anisotropic triangular lattice: PdCrO2 under uniaxial stress

New Journal of Physics, 2021
When Heisenberg spins interact antiferromagnetically on a triangular lattice and nearest-neighbor interactions dominate, the ground state is 120° antiferromagnetism.
Dan Sun, Dmitry A Sokolov, Richard Waite, Seunghyun Khim, Pascal Manuel, Fabio Orlandi, Dmitry D Khalyavin, Andrew P Mackenzie, Clifford W Hicks   +8 more
doaj   +1 more source

Quantum corrections to the phase diagram of heavy-fermion superconductors

, 2005
The competition between magnetism and Kondo effect is the main effect determining the phase diagram of heavy fermion systems. It gives rise to a quantum critical point which governs the low temperature properties of these materials. However, experimental
André S. Ferreira, Eduardo C. Marino, H. Hegger, J. D. Thompson, J. Lindhard, M. A. Continentino, M. A. Continentino, M. A. Continentino, Mucio A. Continentino, S. Coleman, W. J. L. Buyers   +10 more
core   +1 more source

Hall effect measurements on epitaxial SmNiO 3 thin films and implications for antiferromagnetism [PDF]

, 2013
The rare-earth nickelates (RNiO3) exhibit interesting phenomena such as unusual antiferromagnetic order at wavevector q = (1/2, 0, 1/2) and a tunable insulator-metal transition that are subjects of active research.
S. Ha, Rafael Jaramillo, Daniel Silevitch, F. Schoofs, K. Kerman, J. Baniecki, S. Ramanathan   +6 more
semanticscholar   +1 more source