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Related papers: Antiferromagnetism emerging in a ferromagnet with …

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We present antiferromagnetism as a mechanism capable of modifying substantially the phase diagram and the critical behaviour of statistical mechanical models. This is particularly relevant in four dimensions, due to the connection between…

Current-driven magnetic skyrmions show promise as carriers of information bits in racetrack magnetic memory applications. Specifically, the utilization of skyrmions in synthetic antiferromagnetic (SAF) systems is highly attractive due to…

Mesoscale and Nanoscale Physics · Physics 2024-05-20 Dimitris Kechrakos , Mario Carpentieri , Anna Giordano , Riccardo Tomasello , Giovanni Finocchio

Chiral magnets are an emerging class of topological matter harbouring localized and topologically protected vortex-like magnetic textures called skyrmions, which are currently under intense scrutiny as a new entity for information storage…

We study the thermodynamic properties and the phase diagrams of a multi-spin antiferromagnetic spherical spin-glass model using the replica method. It is a two-sublattice version of the ferromagnetic spherical p-spin glass model. We…

Disordered Systems and Neural Networks · Physics 2012-05-22 D. B. Liarte , C. S. O. Yokoi

Recently, a new magnetic phase, termed altermagnetism, has caught the attention of the magnetism and spintronics community. This newly discovered magnetic phenomenon differs from traditional ferromagnetism and antiferromagnetic. It…

Strongly Correlated Electrons · Physics 2024-12-10 R. Tamang , Shivraj Gurung , D. P. Rai , Samy Brahimi , Samir Lounis

The disordered antiferromagnet \pfn (\pfns) is investigated in a wide temperature range by combining M\"ossbauer spectroscopy and neutron diffraction experiments. It is demonstrated that the magnetic ground state is a {\it microscopic}…

Strongly Correlated Electrons · Physics 2013-06-18 S. Chillal , M. Thede , F. J. Litterst , S. N. Gvasaliya , T. A. Shaplygina , S. G. Lushnikov , A. Zheludev

Exploiting both spin and charge of the electron in electronic micordevices has lead to a tremendous progress in both basic condensed-matter research and microelectronic applications, resulting in the modern field of spintronics. Current…

Materials Science · Physics 2015-06-25 X. Martí , I. Fina , T. Jungwirth

We theoretically propose a generation of an antiferro skyrmion crystal (AF-SkX) in a synthetic bilayer antiferromagnetic system under an external magnetic field. By performing the simulated annealing for a spin model on a centrosymmetric…

Strongly Correlated Electrons · Physics 2023-07-20 Satoru Hayami

In spite of the absence of a macroscopic magnetic moment, an anti-ferromagnet is spin-polarized on an atomic scale. The electric current passing through a conducting anti-ferromagnet is polarized as well, leading to spin-transfer torques…

Materials Science · Physics 2009-09-29 Yuan Xu , Shuai Wang , Ke Xia

Altermagnetism refers to a wide class of magnetic orders featuring magnetic sublattices with opposite spins related by rotational symmetries, resulting in non-trivial spin splitting and magnetic multipoles. However, the direct observation…

The electrons on the surface of a disordered multi-layer integer quantum Hall system constitute an unusual chiral metal with ballistic motion transverse to the field, and diffusive motion parallel to it. We present a non-perturbative…

Condensed Matter · Physics 2009-10-28 Leon Balents , Matthew P. A. Fisher , Martin R. Zirnbauer

Within the framework of the $s$-$d(f)$ exchange model in the mean-field approximation for square, simple cubic, body-centered and face-centered cubic lattices, the formation of a ferromagnetic, spiral, and commensurate antiferromagnetic…

Strongly Correlated Electrons · Physics 2021-07-14 A. K. Pankratova , P. A. Igoshev , V. Yu. Irkhin

Recent demonstrations on manipulating antiferromagnetic (AF) order have triggered a growing interest in antiferromagnetic metal (AFM), and potential high-density spintronic applications demand further improvements in the anisotropic…

Mesoscale and Nanoscale Physics · Physics 2018-07-12 Youngseok Kim , Moon Jip Park , David G. Cahill , Matthew J. Gilbert

By mapping the hamiltonian of the spin one ferromagnet onto that of the classical spherical model we investigate the possible phase transitions and the phase diagram of the spin one ferromagnet. Similarly to what happens in the spherical…

Statistical Mechanics · Physics 2007-05-23 Sergey E. Savelev , G. Ramirez-Santiago

Synthetic antiferromagnetic (SAF) skyrmions have emerged as promising candidates for next-generation high-speed and highly integrated spintronic devices, owing to their exceptional properties such as high driving velocity, nanoscale…

Mesoscale and Nanoscale Physics · Physics 2025-11-24 Xinbao Geng , Guanqi Li , Zhongxiang Zhang , Wenjing Hu , Wenjing Zhong , Xiaoming Xiong , Yongbing Xu , Zhendong Chen , Junlin Wang , Xiangyu Zheng , Jing Wu

Altermagnets are a newly identified type of collinear anti-ferromagnetism with vanishing net magnetic moment, characterized by lifted Kramers' degeneracy in parts of the Brillouin zone. Their time-reversal symmetry broken band structure has…

Strongly Correlated Electrons · Physics 2025-06-03 Niclas Heinsdorf

The periodic deviations of ferromagnetic and antiferromagnetic spins from corresponding uniform configurations are shown to be energetically favorable close to a compensated interface of ferromagnetic antiferromagnetic bilayer. The…

Materials Science · Physics 2007-05-23 N. A. Usov , Ching-Ray Chang , Zung-Hang Wei

Two-dimensional quantum antiferromagnets host rich physics, including long-range ordering, high-$T_c$ superconductivity, quantum spin liquid behavior, topological ordering, a variety of other exotic phases, and quantum criticalities.…

Strongly Correlated Electrons · Physics 2022-02-15 Rui Wang , Baigeng Wang , Tigran A. Sedrakyan

A magnetic bimeron is a topologically non-trivial spin texture carrying an integer topological charge, which can be regarded as the counterpart of skyrmion in easy-plane magnets. The controllable creation and manipulation of bimerons are…

Mesoscale and Nanoscale Physics · Physics 2020-01-27 Laichuan Shen , Jing Xia , Xichao Zhang , Motohiko Ezawa , Oleg A. Tretiakov , Xiaoxi Liu , Guoping Zhao , Yan Zhou

We apply Dynamical Mean-Field Theory to strongly interacting fermions in an inhomogeneous environment. With the help of this Real-Space Dynamical Mean-Field Theory (R-DMFT) we investigate antiferromagnetic states of repulsively interacting…

Strongly Correlated Electrons · Physics 2008-09-11 M. Snoek , I. Titvinidze , C. Toke , K. Byczuk , W. Hofstetter