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Related papers: Multi-Q mesoscale magnetism in CeAuSb$_2$

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The tetragonal heavy-fermion compound CeAuSb$_2$ (space group $P4/nmm$) exhibits incommensurate spin density wave (SDW) order below $T_{N}\approx6.5~K$ with the propagation vector $\mathbf{q}_A = (\delta_A,\delta_A,1/2)$. The application of…

Strongly Correlated Electrons · Physics 2023-08-01 R. Waite , F. Orlandi , D. A. Sokolov , R. A. Ribeiro , P. C. Canfield , P. Manuel , D. D. Khalyavin , C. W. Hicks , S. M. Hayden

We report an excellent realization of the highly non-classical incommensurate spin-density wave (SDW) state in the quantum frustrated antiferromagnetic insulator Cs$_2$CoBr$_4$. In contrast to the well-known Ising spin chain case, here the…

Strongly Correlated Electrons · Physics 2022-08-19 L. Facheris , K. Yu. Povarov , S. D. Nabi , D. G. Mazzone , J. Lass , B. Roessli , E. Ressouche , Z. Yan , S. Gvasaliya , A. Zheludev

We propose a novel spin density wave (SDW) state as a possible mechanism of the anomalous antiferromagnetism, so-called the micromagnetism, in URu_2Si_2 below 17.5[K]. In this new SDW, the electron-hole pair amplitude changes its sign in…

Strongly Correlated Electrons · Physics 2009-10-31 Hiroaki Ikeda , Yoji Ohashi

The newly discovered Ising-type ferromagnet CeRu$_2$Al$_2$B exhibits an additional phase transition at $T_\textrm{N}$ = 14.2 K before entering the ferromagnetic ground state at $T_\textrm{C}$ = 12.8 K. We clarify the nature of this…

Strongly Correlated Electrons · Physics 2016-03-09 A. Bhattacharyya , D. D. Khalyavin , F. Krüger , D. T. Adroja , A. M. Strydom , W. A. Kockelmann , A. D . Hillier

We report a comprehensive study of magnetotransport properties, angle-resolved photoemission spectroscopy (ARPES), and density functional theory (DFT) calculations on self-flux grown LaAuSb$_2$ single crystals. Resistivity and Hall…

While parallel segments in the Fermi level contours, often found at the surfaces of topological insulators (TIs) would imply "strong" nesting conditions, the existence of charge density waves (CDWs) - periodic modulations of the electron…

Mesoscale and Nanoscale Physics · Physics 2023-01-26 Adrian Ruckhofer , Giorgio Benedek , Martin Bremholm , Wolfgang E. Ernst , Anton Tamtögl

The nature of spin density wave (SDW) and charge density wave (CDW) in the mixed state of high T_c superconductors (HTS) is investigated by using the self-consistent Bogoliubov-de Gennes equations and an effective model Hamiltonian with…

Superconductivity · Physics 2009-11-07 Yan Chen , H. Y. Chen , C. S. Ting

The ordering wave vector $\mathbf{Q}$ of a spin density wave (SDW), stabilized within the superconducting state of $\mathrm{CeCoIn_5}$ in a high magnetic field, has been shown to be hypersensitive to the direction of the field. $\mathbf{Q}$…

Strongly Correlated Electrons · Physics 2017-07-13 Duk Y. Kim , Shi-Zeng Lin , Eric D. Bauer , Filip Ronning , J. D. Thompson , Roman Movshovich

$\beta$-TeVO$_4$ is a frustrated spin 1/2 zig-zag chain system,where spin-density-wave (SDW), vector chiral (VC)and an exotic dynamic spin-stripe phase compete at low temperatures. Here we use torque magnetometry to study the anisotropy of…

Strongly Correlated Electrons · Physics 2020-07-16 M. Herak , N. Novosel , M. Dragičević , Thierry Guizouarn , Olivier Cador , Helmuth Berger , Matej Pregelj , Andrej Zorko , Denis Arčon

The appearance of spin-density-wave (SDW) magnetic order in the low-temperature and high-field corner of the superconducting phase diagram of CeCoIn$_5$ is unique among unconventional superconductors. The nature of this magnetic $Q$ phase…

We study the effect of a periodic density modulation on surface acoustic wave (SAW) propagation along a 2D electron gas near Landau level filling $\nu=1/2$. Within the composite fermion theory, the problem is described in terms of fermions…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. D. Mirlin , P. Woelfle , Y. Levinson , O. Entin-Wohlman

In itinerant magnetic systems, a spin density wave (SDW) state can be induced by Fermi surface nesting and electron-electron interaction. It may intertwine with other orders such as charge density wave (CDW), while their relation is still…

In the recent letter [1] by H. Ikeda and Y. Ohashi, a new, very attractive idea is proposed for the explanation of the micromagnetism in U-based heavy fermion compounds. For this sake a nontrivial spin density wave (d-SDW) is introduced.…

Strongly Correlated Electrons · Physics 2009-10-31 M. Kiselev , F. Bouis

We demonstrate the sensitivity of transverse-field muon spin rotation (TF-muSR) to static charge-density-wave (CDW) order in the bulk of 2H-NbSe2. In the presence of CDW order the quadrupolar interaction of the 93Nb nuclei with the local…

Superconductivity · Physics 2015-05-06 C. Gomez , D. Braam , S. Tezok , J. E. Sonier

We discuss a series of thermodynamic, magnetic and electrical transport experiments on the two heavy fermion compounds CeNi2Ge2 and YbRh2Si2 in which magnetic fields, B, are used to tune the systems from a Non-Fermi liquid (NFL) into a…

Strongly Correlated Electrons · Physics 2007-05-23 P. Gegenwart , J. Custers , T. Tayama , K. Tenya , C. Geibel , G. Sparn , N. Harrison , P. Kerschl , D. Eckert , K. -H. Müller , F. Steglich

Magnetic topological semimetals present open questions regarding the interplay of crystal symmetry, magnetism, band topology, and electron correlations. $LnSb_{x}Te_{2-x-\delta}$ (Ln= lanthanide) is a family of square-net-derived…

The recently discovered FeAs-based materials exhibit a $(\pi,0)$ Spin Density Wave (SDW) in the undoped state, which gives way to superconductivity upon doping. Here we show that due to an interesting topological feature of the band…

Superconductivity · Physics 2009-03-15 Ying Ran , Fa Wang , Hui Zhai , Ashvin Vishwanath , Dung-Hai Lee

Recently, the signs of both superconducting transition temperature (Tc) beyond 60 K and spin density wave (SDW) have been observed in FeSe thin film on SrTiO3 (STO) substrate, which suggests a strong interplay between superconductivity and…

Superconductivity · Physics 2014-01-08 Hai-Yuan Cao , Shiyong Tan , Hongjun Xiang , D. L. Feng , Xin-Gao Gong

Magnetic susceptibility, transport and heat capacity measurements of single crystal NaxCoO2 (x=0.71) are reported. A transition to a spin density wave (SDW) state at Tmag = 22 K is observable in all measurements, except chi(ac) data in…

Strongly Correlated Electrons · Physics 2009-11-10 J. Wooldridge , D. McK Paul , G. Balakrishnan , M. R. Lees

High pressure provides a powerful means for exploring unconventional superconductivity which appears mostly on the border of magnetism. Here we report the discovery of pressure-induced heavy fermion superconductivity up to 2.5 K in the…

Superconductivity · Physics 2014-09-30 Z. Ren , L. V. Pourovskii , G. Giriat , G. Lapertot , A. Georges , D. Jaccard
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