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The influence of antisite disorder occupancies on the magnetic properties of the half-metallic Co$_2$MnSi compound was studied by experimental techniques and first-principles calculations. The neutron diffraction studies show almost…

Materials Science · Physics 2019-10-18 S. J. Ahmed , C. Boyer , M. Niewczas

The effects of various point defects and lattice distortions on the structural, electronic, and magnetic properties of Co$_2$MnAl alloy are investigated using density functional theory calculations. For the point defects, six types of…

Materials Science · Physics 2025-04-28 Amar Kumar , Sujeet Chaudhary , Sharat Chandra

We study the mean-field phase diagram of the two-dimensional (2D) Hubbard model in the Lieb lattice allowing for spin and charge density waves. Previous studies of this diagram have shown that the mean-field magnetization surprisingly…

Strongly Correlated Electrons · Physics 2016-02-17 J. D. Gouveia , R. G. Dias

Low temperature high magnetic field $^{57}Fe$ M$\ddot{o}$ssbauer measurements were carried out on inter-metallic $Hf_{0.77}Ta_{0.23}Fe_2$ compound by following novel paths in H-T space. The ferromagnetic (FM) fraction at 5K and zero…

Strongly Correlated Electrons · Physics 2013-07-19 V. Raghavendra Reddy , R. Rawat , Ajay Gupta , Pallab Bag , V. Siruguri , P. Chaddah

The magnetic ground-state of copper metaborate is investigated by means of elastic neutron scattering.The magnetic structure of CuB2O4 is incommensurate with respect to the chemical lattice at T=1.8K and undergoes a continuous phase…

Strongly Correlated Electrons · Physics 2009-01-23 B. Roessli , J. Schefer , G. Petrakovskii , B. Ouladdiaf , M. Boehm , U. Staub , A. Vorontinov , L. Bezmaternikh

We have studied the spin liquid Tb$\_2$Sn$\_2$O$\_7$ by neutron diffraction and specific heat measurements. Below about 2 K, the magnetic correlations change from antiferromagnetic to ferromagnetic. Magnetic order settles in two steps, with…

Strongly Correlated Electrons · Physics 2009-11-11 I. Mirebeau , A. Apeteri , J. Rodriguez-Carvajal , P. Bonville , A. Forget , D. Colson , V. Glazkov , J. P. Sanchez , O. Isnard , E. Suard

We report the results of the pressure-dependent measurements of the static magnetization and of the ferromagnetic resonance (FMR) of Cr$_2$Ge$_2$Te$_6$ to address the properties of the ferromagnetic phase of this quasi-two-dimensional van…

We report dc magnetic measurements on YbCu$_2$Si$_2$ at pressures above 10 GPa using a miniature ceramic anvil cell. YbCu$_2$Si$_2$ shows a pressure-induced transition from the non-magnetic to a magnetic phase at 8 GPa. We find a…

Strongly Correlated Electrons · Physics 2014-03-05 Naoyuki Tateiwa , Tatsuma D. Matsuda , Yoshinori Haga , Zachary Fisk

We present the results of electrical resistivity, ac specific heat, magnetic susceptibility, X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) of the ternary iron arsenide EuFe2As2 single crystal under…

X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) were used to probe the oxidation state and element specific magnetic moments of Mn in Heusler compounds with different crystallographic structure. The results…

Materials Science · Physics 2016-01-20 J. Karel , F. Bernardi , C. Wang , A. Beleanu , R. Stinshoff , N. -O. Born , S. Ouardi , U. Burkhardt , G. H. Fecher , C. Felser

Magnetic phases are commonly identified through macroscopic magnetization, yet many ordered states, including antiferromagnets and altermagnets, possess a vanishing net moment despite distinct local spin structure. We show that such an…

Mesoscale and Nanoscale Physics · Physics 2026-01-14 Rishith Reddy , Parveen Kumar , Ankur Das

Using the experimental capability of the novel X-ray diffraction instrument available at the 25 Tesla Florida Split Coil Magnet at the NHMFL, Tallahassee we present an extensive investigation on the magnetostriction of polycrystalline…

Materials Science · Physics 2021-06-23 S. Sharma , A. E. Kovalev , D. J. Rebar , D. Mann , V. Yannello , M. Shatruk , A. V. Suslov , J. H. Smith , T. Siegrist

We report studies of in-situ x-ray diffraction (XRD) and electronic properties on the single crystalline of Fe1.05Te compound under high pressure. The results demonstrated that the sample undergoes a pressure-induced lattice collapse in…

Superconductivity · Physics 2009-12-01 Chao Zhang , Wei Yi , Liling Sun , Wei Lu , Xiaoli Dong , Ligang Bai , Jing Liu , Genfu Chen , Nanlin Wang , Zhongxian Zhao

We investigate the pressure phase diagram of FeTe, predicting structural and magnetic properties in the normal state at zero temperature within density functional theory (DFT). We carefully examined several possible different crystal…

Superconductivity · Physics 2013-03-21 M. Monni , F. Bernardini , G. Profeta , S. Massidda

Ferromagnetism in certain B2 ordered alloys such as Fe$_{60}$Al$_{40}$ can be switched on, and tuned, via antisite disordering of the atomic arrangement. The disordering is accompanied by a $\sim$1 % increase in the lattice parameter. Here…

We present the first non-mean-field calculation of the magnetization $M(T)$ of YBa$_2$Cu$_3$O$_{7-\delta}$ both above and below the flux-lattice melting temperature $T_m(H)$. The results are in good agreement with experiment as a function…

supr-con · Physics 2009-10-28 R. Sasik , D. Stroud

We report magnetic properties of a 3d$^9$ (Cu$^{2+}$) magnetic insulator Cu2OSO4 measured on both powder and single crystal. The magnetic atoms of this compound form layers, whose geometry can be described either as a system of chains…

The Prototypical magnetic memory shape alloy Ni$_2$MnGa undergoes various phase transitions as a function of temperature, pressure, and doping. In the low-temperature phases below 260 K, an incommensurate structural modulation occurs along…

Strongly Correlated Electrons · Physics 2017-12-06 G. Lantz , M. J. Neugebauer , M. Kubli , M. Savoini , E. Abreu , K. Tasca , C. Dornes , V. Esposito , J. Rittmann , Y. W. Windsor , P. Beaud , G. Ingold , S. L. Johnson

The magnets are typically classified into Stoner and Heisenberg type, depending on the itinerant or localized nature of the constituent magnetic moments. In this work, we investigate theoretically the behaviour of the magnetic moments of…

Pressure-induced changes in the magnetic and superconducting properties of a spin-triplet superconductor candidate UTe2 have attracted considerable interest, underscoring the need for microscopic theoretical insight. In this paper, we…

Strongly Correlated Electrons · Physics 2025-10-20 Makoto Shimizu , Youichi Yanase
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