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Related papers: Magnetism out of disorder in a J=0 compound Ba2YIr…

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The magnetic relaxation characteristics are investigated in the two-dimensional ($l^{}_x\times l^{}_y$) assembly of nanoparticles as a function of out-of-plane positional disorder strength $\Delta(\%)$ using numerical simulations. Such…

Materials Science · Physics 2021-09-28 Manish Anand

We have used high-resolution neutron Larmor diffraction and capacitative dilatometry to investigate spontaneous and forced magnetostriction in undoped, antiferromagnetic YBa$_2$Cu$_3$O$_{6.0}$, the parent compound of a prominent family of…

Strongly Correlated Electrons · Physics 2016-02-29 B. Nafradi , T. Keller , F. Hardy , C. Meingast , A. Erb , B. Keimer

We report a detailed study of the magnetic properties, critical analysis of magnetization, and magnetocaloric effect of a spin-$2$ kagome lattice YCa$_3$(MnO)$_3$(BO$_3$)$_4$. The experiments are complemented by the density functional band…

Materials Science · Physics 2025-07-29 A. Choudhary , A. Magar , S. Ghosh , S. Kanungo , R. Nath

The magnetic behavior of the Ca3Co2O6 spin chain compound is characterized by a large Ising-like character of its ferromagnetic chains, set on triangular lattice, that are antiferromagnetically coupled. At low temperature, T < 7K, the 3D…

Strongly Correlated Electrons · Physics 2007-05-23 A. Maignan , V. Hardy , S. Hebert , M. Drillon , M. R. Lees , O. Petrenko , D. Mc K. Paul , D. Khomskii

This study investigates the changes of magnetic ordering temperature via nano- and mesoscale structural features in an iron arsenide. Although magnetic ground states in quantum materials can be theoretically predicted from known crystal…

We report on the results of 23Na NMR in the honeycomb lattice magnet Na2Co2TeO6 which has been nominated as a Kitaev material. Measurements of magnetic shift and width of the NMR line as functions of temperature and magnetic field show that…

Strongly Correlated Electrons · Physics 2022-12-21 Jun Kikuchi , Takayuki Kamoda , Nobuyoshi Mera , Yodai Takahashi , Kouji Okumura , Yukio Yasui

Crystal structure, electronic state of Ir$^{4+}$, and magnetic properties of the antifluorite compound K$_2$IrBr$_6$ are studied using high-resolution synchrotron x-ray diffraction, resonant inelastic x-ray scattering (RIXS), thermodynamic…

Strongly Correlated Electrons · Physics 2021-04-02 Nazir Khan , Danil Prishchenko , Mary H. Upton , Vladimir G. Mazurenko , Alexander A. Tsirlin

Anti-site disordering in Sr2FeMoO6 double perovskites (containing Mo atoms at Fe positions, and viceversa) has recently been shown to have a dramatic influence in their magnetic and magnetotransport properties. In the present study, two…

Pyrochlore iridates A2Ir2O7 (A = rare earth elements, Y or Bi) hold great promise for realizing novel electronic and magnetic states owing to the interplay of spin-orbit coupling, electron correlation and geometrical frustration. A…

Strongly Correlated Electrons · Physics 2017-10-04 W. C. Yang , W. K. Zhu , H. D. Zhou , L. Ling , E. S. Choi , M. Lee , Y. Losovyj , Chi-Ken Lu , S. X. Zhang

The coupling of magnetic and electronic degrees of freedom to the crystal lattice in the ferromagnetic semimetal EuB$_6$, which exhibits a complex ferromagnetic order and a colossal magnetoresistance (CMR) effect, %, very likely involving…

Strongly Correlated Electrons · Physics 2014-08-07 Rudra Sekhar Manna , Pintu Das , Mariano de Souza , Michael Lang , Jens Müller , Stephan von Molnár , Zachary Fisk

Magnetic and magnetocaloric properties of Y$_{1-x}$Gd$_{x}$Co$_{2}$ compounds, where x = 0.2, 0.4, 0.6, 0.8 and 1.0, were investigated experimentally and theoretically. Crystal structures were characterized by X-ray diffraction (Rietveld…

In this paper, the changes of magnetic properties with increasing disorder in the exchange enhanced Pauli paramagnet YCo$_2$ are discussed. The structural disorder is initially introduced by rapid quenching, while further changes on…

Ba2CoGe2O7, crystallizing in the noncentrosymmetric but nonpolar structure, belongs to a special class of multiferroic materials, whose properties are predetermined by the rotoinversion symmetry. Unlike inversion, the rotoinversion symmetry…

Materials Science · Physics 2015-06-23 I. V. Solovyev

The layered compound with distorted Kagome nets, Dy3Ru4Al12, was previously reported to undergo antiferromagnetic ordering below (TN=) 7 K, based on investigations on single crystals. Here, we report the results of our investigation of ac…

Strongly Correlated Electrons · Physics 2016-05-05 Venkatesh Chandragiri , Kartik K Iyer , E. V. Sampathkumaran

The delicate balance between spin-orbit coupling, Coulomb repulsion and crystalline electric field interactions observed in Ir-based oxides is usually manifested as exotic magnetic behavior. Here we investigate the evolution of the exchange…

We report extensive measurements on a new compound (Yb0.24Sn0.76)Ru that crystallizes in the cubic CsCl structure. Valence band photoemission and L3 x-ray absorption show no divalent component in the 4f configuration of Yb. Inelastic…

We have performed magnetic susceptibility, heat capacity, muon spin relaxation, and neutron scattering measurements on three members of the family Ba3MRu2O9, where M = In, Y and Lu. These systems consist of mixed-valence Ru dimers on a…

Strongly Correlated Electrons · Physics 2017-05-31 D. Ziat , A. A. Aczel , R. Sinclair , Q. Chen , H. D. Zhou , T. J. Williams , M. B. Stone , A. Verrier , J. A. Quilliam

Many tetragonal compounds LnIr$_2$Si$_2$ (Ln = lanthanoid) occur in two polymorphous phases and are therefore well suited to study the relationship between crystal structure and magnetic properties. We have grown GdIr$_2$Si$_2$ single…

Strongly Correlated Electrons · Physics 2022-03-04 Kristin Kliemt , Julian Dominik Reusch , Michael Bolte , Cornelius Krellner

We analyze the effect of quenched disorder on spin-1/2 quantum magnets in which magnetic frustration promotes the formation of local singlets. Our results include a theory for 2d valence-bond solids subject to weak bond randomness, as well…

Strongly Correlated Electrons · Physics 2018-08-01 Itamar Kimchi , Adam Nahum , T. Senthil

The predicted physical properties of double perovskites have usually been compromised by their intrinsic B-antisite (AS) disorder effect, but the relationship between them is still unclear for the La2MnCoO6 (LMCO) system. This study focuses…

Materials Science · Physics 2022-08-22 R. C. Sahoo , S. Zhang , Y. Takeuchi , M. Kitamura , K. Horiba , H. Kumigashira , O. Sakata , T. Soma , A. Ohtomo