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The magnetic state of UO$_2$ was determined experimentally to be anti-ferromagnetic. Starting from this experimental fact, researchers have calculated other properties within the Hubbard-corrected density-functional theory, DFT+U. Up to…

Materials Science · Physics 2024-01-03 Mahmoud Payami

Single crystals of Ca[Co_(2-x)Ir_(x)]_(2-y)As2 with 0 <= x <= 0.35 and 0.10 <= y <= 0.14 have been grown using the self-flux technique and characterized by single-crystal x-ray diffraction (XRD), energy-dispersive x-ray spectroscopy,…

Strongly Correlated Electrons · Physics 2020-07-15 Santanu Pakhira , N. S. Sangeetha , V. Smetana , A. -V. Mudring , D. C. Johnston

We report a study of the structural, magnetic, transport, and thermodynamic properties of polycrystalline samples of CeRhC$_2$. CeRhC$_2$ crystallizes in a tetragonal structure with space group $P4_1$ and it orders antiferromagnetically…

Strongly Correlated Electrons · Physics 2023-10-17 Yu Liu , M. O. Ajeesh , A. O. Scheie , C. R. dela Cruz , P. F. S. Rosa , S. M. Thomas , J. D. Thompson , F. Ronning , E. D. Bauer

We have carried out $^{63,65}$Cu NMR spectra measurements in magnetic field up to about 45~T on single crystal of a multiferroic triangular antiferromagnet CuCrO$_2$. The measurements were performed for magnetic fields aligned along the…

Strongly Correlated Electrons · Physics 2016-12-21 Yu. A. Sakhratov , L. E. Svistov , P. L. Kuhns , H. D. Zhou , A. P. Reyes

We present the results of the first neutron powder and single crystal diffraction studies of the coupled spin tetrahedra systems ${\CuTeX}$ (X=Cl, Br). Incommensurate antiferromagnetic order with the propagation vectors…

Strongly Correlated Electrons · Physics 2009-11-10 O. Zaharko , A. Daoud-Aladine , S. Streule , J. Mesot , P. -J. Brown , H. Berger

We investigate partially disordered antiferromagnetism in CoCl$_2$-2SC(NH$_2$)$_2$, in which a-b plane hexagonal layers are staggered along the c-axis, rather than stacked. A robust 1/3 state forms in applied magnetic fields which the spins…

Contrary to prior calculations, the Ni-rich ordered structures of the Cr-Ni alloy system are found to be antiferromagnetic under semi-local density-functional theory. The optimization of local magnetic moments significantly increases the…

Materials Science · Physics 2023-08-23 Flynn Walsh , Robert O. Ritchie , Mark Asta

Non magnetic insulators/semiconductors with induced magnetism introduced via transition metal substitution are one of the promising materials in the field of spintronic, magnetoelectronics and magneto optical devices. In this context, here,…

Strongly Correlated Electrons · Physics 2022-10-06 Gurpreet Kaur , K. Mukherjee

The relationship between the long-range antiferromagnetic order in cuprates and the high-temperature superconductivity in these compounds represents unresolved, nearly four-decades long scientific problem. Because recently discovered…

Superconductivity · Physics 2023-09-21 E. F. Talantsev

Severe plastic deformation using high-pressure torsion of ternary Cu-based materials (CuFeCo and CuFeNi) was used to fabricate bulk samples with a nanocrystalline microstructure. The goal was to produce materials featuring the granular…

Materials Science · Physics 2022-08-26 M. Kasalo , S. Wurster , M. Stückler , M. Zawodzki , L. Weissitsch , R. Pippan , A. Bachmaier

Specific heat and ac magnetic susceptibility measurements, spanning low temperatures ($T \geq 40$ mK) and high magnetic fields ($B \leq 14$ T), have been performed on a two-dimensional (2D) antiferromagnet Cu(tn)Cl$_{2}$ (tn =…

Cu3Nb2O8 is an unusual multiferroic compound that undergoes a series of magnetic ordering at low temperatures. Concurrent development of electric polarization has been reported at TN1 ~25 K corresponding to a non-collinear helicoidal…

Strongly Correlated Electrons · Physics 2015-06-22 G. Sharma , J. Saha , S. D. Kaushik , V. Siruguri , S. Patnaik

Single crystal of CeAl has been grown by flux method using Ce-Al self-flux. Several needle like single crystals were obtained and the length of the needle corresponds to the [001] crystallographic direction. Powder x-ray diffraction…

Strongly Correlated Electrons · Physics 2015-06-22 Pranab Kumar Das , A. Thamizhavel

Low dimensional magnetism has been powerfully boosted as a promising candidate for numerous applications. The stability of the long-range magnetic order is directly dependent on the electronic structure and the relative strength of the…

Materials Science · Physics 2020-04-27 Adolfo O. Fumega , S. Blanco-Canosa , H. Babu-Vasili , Jian-Shi Zhou , F. Rivadulla , Victor Pardo

Antiferromagnetic Bi_{2}Fe_{4}O_{9} (BFO), lightly substituted by cobalt is studied for magnetodielectricity. The substitution causes a substantial decrease in the Neel temperature (T_N) from 250 K (in parent sample, BFO) to 152 K (in 2% Co…

Materials Science · Physics 2017-09-19 S. R. Mohapatra , P. N. Vishwakarma , S. D. Kaushik , R. J. Choudhary , N. Mohapatra , A. K. Singh

The solid solution Eu(Ga_1-xAl_x)_4 was grown in single crystal form to reveal a rich variety of crystallographic, magnetic, and electronic properties that differ from the isostructural end compounds EuGa_4 and EuAl_4, despite the similar…

Strongly Correlated Electrons · Physics 2018-05-30 Macy Stavinoha , Joya A. Cooley , Stefan G. Minasian , Tyrel M. McQueen , Susan M. Kauzlarich , C. -L. Huang , E. Morosan

We have made a series of gradient-corrected relativistic full-potential density-functional calculation for Ca-substituted and hole-doped SrRuO$_3$ in para, ferro, and $A$-, $C$-, and $G$-type antiferromagnetic states. Magnetic phase-diagram…

Materials Science · Physics 2009-11-07 P. Ravindran , R. Vidya , P. Vajeeston , A. Kjekshus , H. Fjellvaag , B. C. Hauback

A new disordered atom configuration in Fe2CrGa alloy has been created by ball-milling method. This leads to a significant enhancement of the magnetic moment up to 3.2~3.9 {\mu}B and an increase of Curie temperature by about 200 K, compared…

Materials Science · Physics 2013-10-21 H. G. Zhang , C. Z. Zhang , W. Zhu , E. K. Liu , W. H. Wang , H. W. Zhang , J. L. Cheng , H. Z. Luo , G. H. Wu

The dynamics of magnetic moments in iron-chromium alloys with different levels of Cr clustering show unusual features resulting from the fact that even in a perfect body-centred cubic structure, magnetic moments experience geometric…

Materials Science · Physics 2019-05-22 J. B. J. Chapman , S. L. Dudarev , P. -W. Ma

A single crystal of the Co2+ based pyrochlore NaCaCo2F7 was studied by inelastic neutron scattering. This frustrated magnet with quenched exchange disorder remains in a strongly correlated paramagnetic state down to one 60th of the…

Strongly Correlated Electrons · Physics 2016-02-03 Kate A. Ross , Jason W. Krizan , Jose A. Rodriguez-Rivera , Robert J. Cava , Collin L. Broholm