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Related papers: Noncollinear magnetic order in quasicrystals

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Topological quantum matter and spintronics research have been developed to a large extent independently. In this Review we discuss a new role that the antiferromagnetic order has taken in combining topological matter and spintronics. This…

Mesoscale and Nanoscale Physics · Physics 2017-04-06 L. Šmejkal , T. Jungwirth , J. Sinova

Altermagnets host an array of magnetic multipoles, which are often visualized and studied in the reciprocal space. In the real space, the relative phase of the multipoles of the spin-density around atoms determines whether a system is an…

Materials Science · Physics 2026-01-01 Luca Buiarelli , Rafael M. Fernandes , Turan Birol

We present a perspective on the status of antiferromagnetism in two-dimensional (2D) materials. Various types of spin-compensated orders are discussed and include non-collinear order, spin spirals and altermagnetism. Spin-orbit effects…

Materials Science · Physics 2024-08-09 Thomas Olsen

In recent years, studies on cyclic molecular nanomagnets have captivated the attention of researchers. These magnets are finite in size and contain very large spins. They are interesting because they possess macroscopic quantum tunneling of…

Mesoscale and Nanoscale Physics · Physics 2015-05-29 S. A. Owerre , J. Nsofini

Magnetic frustration in three dimensions (3D) manifests itself in the spin-$\frac12$ insulator Li$_2$CuW$_2$O$_8$. Density-functional band-structure calculations reveal a peculiar spin lattice built of triangular planes with frustrated…

Materials Science · Physics 2016-02-05 K. M. Ranjith , R. Nath , M. Skoulatos , L. Keller , D. Kasinathan , Y. Skourski , A. A. Tsirlin

Nontrivial magnetic orders in the inverse-perovskite manganese nitrides are theoretically studied by constructing a classical spin model describing the magnetic anisotropy and frustrated exchange interactions inherent in specific crystal…

Strongly Correlated Electrons · Physics 2018-09-14 Masahito Mochizuki , Masaya Kobayashi , Reoya Okabe , Daisuke Yamamoto

In conventional metals, modification of electron trajectories under magnetic field gives rise to a magnetoresistance that varies quadratically at low field, followed by a saturation at high field for closed orbits on the Fermi surface.…

Superconductivity · Physics 2017-06-06 Q. Niu , W. C. Yu , K. Y. Yip , Z. L. Lim , H. Kotegawa , E. Matsuoka , H. Sugawara , H. Tou , Y. Yanase , Swee K. Goh

A possibility of the uniform antiferromagnetic order is pointed out in an S=1/2 ferromagnetic (F) - antiferromagnetic (AF) random alternating Heisenberg quantum spin chain compound: (CH_3)_2 CHNH_3 Cu(Cl_x Br_{1-x})_3. The system possesses…

Statistical Mechanics · Physics 2009-11-07 Tota Nakamura

The failure of spatial inversion symmetry in noncentrosymmetric materials introduces two different types of spin-independent and spin-dependent electron hopping. The spin-dependent term can be translated into a quasi-spin-orbit coupling and…

Superconductivity · Physics 2021-04-30 Mehdi Biderang , Mohammad-Hossein Zare , Alireza Akbari

We study crystal melting in two-dimensional antiferromagnets, by analyzing the statistical mechanics of the six-state clock model on a lattice in which defects (dislocations and disclinations) are allowed to appear. We show that the…

Statistical Mechanics · Physics 2018-01-26 Itamar Shamai , Daniel Podolsky

Layered topologically non-trivial and trivial semimetals with AFM-type ordering of magnetic sublattice are known to exhibit a negative magnetoresistance that is well correlated with AFM magnetization changes in a magnetic field. This effect…

Mesoscale and Nanoscale Physics · Physics 2024-05-29 P. D. Grigoriev , N. S. Pavlov , I. A. Nekrasov , I. R. Shein , A. V. Sadakov , O. A. Sobolevskiy , E. Maltsev , N. Perez , L. Veyrat , V. M. Pudalov

Antiferromagnetic materials have a vanishingly small net magnetization, which generates weak dipolar fields and makes them robust against external magnetic perturbation and rapid magnetization dynamics, as dictated by the geometric mean of…

Materials Science · Physics 2024-11-19 Ankit Shukla , Siyuan Qian , Shaloo Rakheja

The stability and magnonic properties of double-layered antiferromagnets are investigated using two model systems, a linear chain (LC) and a more complex chain of railroad trestle (RT) geometry, and the results are confronted with…

Strongly Correlated Electrons · Physics 2026-02-11 Seo-Jin Kim , Zdeněk Jirák , Jiří Hejtmánek , Karel Knížek , Helge Rosner , Kyo-Hoon Ahn

Spontaneous symmetry breaking is deeply related to dimensionality of system. The Neel order going with spontaneous breaking of $U(1)$ symmetry is safely allowed at any temperature for three-dimensional systems but allowed only at zero…

Strongly Correlated Electrons · Physics 2016-10-05 Shunsuke C. Furuya , Maxime Dupont , Sylvain Capponi , Nicolas Laflorencie , Thierry Giamarchi

In this paper we introduce a theoretical model of a metallic magnetic system with noncollinear antiferromagnetic order. We introduce a mechanism of indirect interaction of conducting fermions with localized spins based on the tunneling…

Mesoscale and Nanoscale Physics · Physics 2026-01-27 Vladimir A. Zyuzin

We discuss the possibility of coexistence of spin density wave (antiferromagnetism) and triplet superconductivity as a particular example of a broad class of systems where the interplay of magnetism and superconductivity is important. We…

Superconductivity · Physics 2009-11-11 Wei Zhang , C. A. R. Sa de Melo

We explore topological states with magnetic order in heavy-fermion systems by taking account of a mirror symmetry.Although without spatial symmetry, there is no topological phase in the two-dimensional (2D) antiferromagnetic phases at half…

Strongly Correlated Electrons · Physics 2018-07-24 Kazuhiro Kimura , Tsuneya Yoshida , Norio Kawakami

One view of the cuprate high-transition temperature (high-Tc) superconductors is that they are conventional superconductors where the pairing occurs between weakly interacting quasiparticles, which stand in one-to-one correspondence with…

Strongly Correlated Electrons · Physics 2009-11-07 B Lake , HM Ronnow , NB Christensen , G Aeppli , K Lefmann , DF McMorrow , P Vorderwisch , P Smeibidl , N Mangkorntong , T Sasagawa , M. Nohara , H. Takagi , TE Mason

Frustrated quasidoublets without time-reversal symmetry can host highly unconventional magnetic structures with continuously distributed order parameters even in a single-phase crystal. Here, we report the comprehensive thermodynamic and…

CrN is observed to undergo a paramagnetic to antiferromagnetic transition accompanied by a shear distortion from cubic NaCl-type to orthorhombic structure. Our first-principle plane wave and ultrasoft pseudopotential calculations confirm…

Materials Science · Physics 2009-10-31 A. Filippetti , W. E. Pickett , B. M. Klein