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Related papers: Magnetism and superconductivity in Ce_2RhIn_8

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The electrical resistivity of the unconventional superconductor UTe$_2$ shows very anisotropic behavior in the normal state depending on the current direction. In the present paper we show that the maximum in the resistivity $\rho_c$ for…

Strongly Correlated Electrons · Physics 2024-10-24 G. Knebel , A. Pourret , S. Rousseau , N. Marquardt , D. Braithwaite , F. Honda , D. Aoki , G. Lapertot , W. Knafo , G. Seyfarth , J-P. Brison , J. Flouquet

We report the novel pressure(P)-temperature(T) phase diagrams of antiferromagnetism (AF) and superconductivity (SC) in CeRhIn$_5$, CeIn$_3$ and CeCu$_2$Si$_2$ revealed by the NQR measurement. In the itinerant helical magnet CeRhIn$_5$, we…

Strongly Correlated Electrons · Physics 2009-11-07 Y. Kitaoka , Y. Kawasaki , T. Mito , S. Kawasaki , G. -q. Zheng , K. Ishida , D. Aoki , Y. Haga , R. Settai , Y. Onuki , C. Geibel , F. Steglich

Electron-doped Eu(Fe$_{0.93}$Rh$_{0.07}$)$_2$As$_2$ has been systematically studied by high pressure investigations of the magnetic and electrical transport properties, in order to unravel the complex interplay of superconductivity and…

Superconductivity · Physics 2017-05-31 A. Löhle , A. Baumgartner , S. Zapf , W. H. Jiao , G. H. Cao , M. Dressel

To clarify superconductivity in EuFe2As2 hidden by antiferromagnetism of Eu2+, we investigated a Ca-substituted sample, Eu0.5Ca0.5Fe2As2, under high pressure. For ambient pressure, the sample exhibits a spin-density-wave (SDW) transition at…

Superconductivity · Physics 2010-07-13 Akihiro Mitsuda , Tomohiro Matoba , Hirofumi Wada , Fumihiro Ishikawa , Yuh Yamada

We report a new family of Ce-based heavy-fermion compounds whose electronic specific heat coefficients range from about 400 to over 700 mJ/mole Ce-K2. Crystal in this family form as CenTmIn3n+2m, where T=Rh or Ir, n=1 or 2, and m=1, with a…

Superconductivity induced by a magnetic field near metamagnetism is a striking manifestation of magnetically-mediated superconducting pairing. After being observed in itinerant ferromagnets, this phenomenon was recently reported in the…

Superconductivity · Physics 2021-03-09 W. Knafo , M. Nardone , M. Valiska , A. Zitouni , G. Lapertot , D. Aoki , G. Knebel , D. Braithwaite

Bulk magnetization, transport and neutron scattering measurements were performed to investigate the electronic and magnetic properties of a polycrystalline sample of the newly discovered ferromagnetic superconductor,…

In order to investigate whether magnetism and superconductivity coexist in Co-doped SrFe$_2$As$_2$, we have prepared single crystals of SrFe$_{2-x}$Co$_x$As$_2$, $x$ = 0 and 0.4, and characterized them via X-ray diffraction, electrical…

Superconductivity · Physics 2009-11-13 Jun Sung Kim , Seunghyun Khim , Liqin Yan , N. Manivannan , Yong Liu , Ingyu Kim , G. R. Stewart , Kee Hoon Kim

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…

Magnetic properties of $M_{c}$Ta$_{2}$S$_{2}$C ($M$ = Fe, Co, Ni, Cu) have been studied using SQUID DC and AC magnetic susceptibility. In these systems magnetic $M^{2+}$ ions are intercalated into van der Waals gaps between adjacent S…

Superconductivity · Physics 2008-10-02 Masatsugu Suzuki , Itsuko S. Suzuki , Jürgen Walter

We present the results of our comprehensive investigation on the antiferromagnetic heavy-fermion superconductor Ce$_3$PtIn$_{11}$ carried out by means of electrical transport, heat capacity and ac magnetic susceptibility measurements,…

This review discusses the heavy-fermion superconductivity in Ce- and U-based compounds crystallizing in the body-centered tetragonal ThCr2Si2 structure. Special attention will be paid to the theoretical background of these systems which are…

Superconductivity · Physics 2012-02-23 Oliver Stockert , Stefan Kirchner , Frank Steglich , Qimiao Si

The discovery of superconductivity in the heavy-fermion paramagnet UTe$_2$ has attracted a lot of attention, particularly due to the reinforcement of superconductivity near pressure- and magnetic-field-induced magnetic quantum phase…

Superconductivity · Physics 2022-01-05 M. Vališka , W. Knafo , G. Knebel , G. Lapertot , D. Aoki , D. Braithwaite

We present magnetoresistivity measurements on the heavy-fermion superconductor UTe$_{2}$ in pulsed magnetic fields $\mu_0H$ up to 68~T and temperatures $T$ from 1.4 to 80~K. Magnetic fields applied along the three crystallographic…

The heavy-fermion superconductor CeRh$_{2}$As$_{2}$ ($T_{\textrm{c}} = 0.35\, \textrm{K}$) shows two superconducting (SC) phases, SC1 and SC2, when a magnetic field is applied parallel to the $c$ axis of the tetragonal unit cell. All…

Strongly Correlated Electrons · Physics 2025-09-05 P. Khanenko , J. F. Landaeta , S. Ruet , T. Lühmann , K. Semeniuk , M. Pelly , A. W. Rost , G. Chajewski , D. Kaczorowski , C. Geibel , S. Khim , E. Hassinger , M. Brando

The antiferromagnet CaFe$_2$As$_2$ does not become superconducting when subject to ideal hydrostatic pressure conditions, where crystallographic and magnetic states also are well defined. By measuring electrical resistivity and magnetic…

Superconductivity · Physics 2009-08-01 Hanoh Lee , Eunsung Park , Tuson Park , V. A. Sidorov , F. Ronning , E. D. Bauer , J. D. Thompson

MoTe_2, with the orthorhombic T_d phase, is a new type (type-II) of Weyl semimetal, where the Weyl Fermions emerge at the boundary between electron and hole pockets. Non-saturating magnetoresistance (MR), and superconductivity were also…

We have investigated the magnetic and the superconducting properties of the hybrid ruthenate-cuprate compound RuSr_{2}GdCu_{2}O_{8} by means of zero-field muon spin rotation- (ZF-$\mu $SR) and DC magnetization measurements. The…

The discovery of multiple superconducting phases in UTe2 boosted research on correlated-electron physics. This heavy-fermion paramagnet was rapidly identified as a reference compound to study the interplay between magnetism and…

The ground state of K$_{0.8+x}$Fe$_{1.6+y}$Se$_2$ and other iron-based selenide superconductors are doped antiferromagnetic semiconductors. There are well defined iron local moments whose energies are separated from those of conduction…

Superconductivity · Physics 2015-05-27 G. M. Zhang , Z. Y. Lu , T. Xiang
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