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Related papers: Theoretical Study of Pressure Effect on TDAE-C60

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The magnetic structure and phase diagram of the layered ferromagnetic compound Fe$_3$GeTe$_2$ has been investigated by a combination of synthesis, x-ray and neutron diffraction, high resolution microscopy, and magnetization measurements.…

Strongly Correlated Electrons · Physics 2016-01-13 Andrew F. May , Stuart Calder , Claudia Cantoni , Huibo Cao , Michael A. McGuire

We have investigated the electronic structure and magnetic properties of GdN as a function of unit cell volume. Based on the first-principles calculations of GdN, we observe that there is a transformation in conduction properties associated…

Computational Physics · Physics 2009-11-11 C. -G. Duan , R. F. Sabiryanov , J. Liu , W. N. Mei , P. A. Dowben , J. R. Hardy

The molecular dynamics in the ambient-pressure solid phase of (1,1,2)-trichloroethane is studied by means of broadband dielectric spectroscopy and molecular dynamics simulations. The dielectric spectra of polycrystalline samples obtained by…

Heterostructures of two-dimensional (2D) van der Waals (vdW) magnets and topological insulators (TI) are of substantial interest as candidate materials for efficient spin-torque switching, quantum anomalous Hall effect, and chiral spin…

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

Theoretical prediction of Curie temperature (TC) is of vital importance for designing the spintronic devices in two-dimensional (2D) ferromagnetic materials. Herein, based on the extensive investigation of Monte Carlo simulations, we…

Materials Science · Physics 2022-09-13 Yufei Xue , Zhong Shen , Zebin Wu , Changsheng Song

The ferroelectric phase transition in barium titanate under pressure was studied within the framework of Landau-Ginzburg theory using differential scanning calorimetry. An innovative method for high-sensitive thermal measurements under…

Materials Science · Physics 2024-10-18 Olga Mazur , Ken-ichi Tozaki , Yukio Yoshimura , Leonid Stefanovich

The pressure-temperature phase diagram of the orthorhombic ferromagnetic superconductor UCoGe was determined by resistivity measurements up to $10.5~$GPa. The Curie temperature $T_C$ is suppressed with pressure and vanishes at the critical…

Strongly Correlated Electrons · Physics 2016-09-14 Gael Bastien , Daniel Braithwaite , Dai Aoki , Georg Knebel , Jacques Flouquet

The Pair Approximation method is applied to studies of the bilayer and multilayer magnetic systems with simple cubic structure. The method allows to take into account quantum effects related with non-Ising couplings. The paper adopts the…

Statistical Mechanics · Physics 2013-04-09 Karol Szałowski , Tadeusz Balcerzak

The Curie temperature TC is investigated as a function of the hole concentration p in thin films of ferromagnetic semiconductor (Ga,Mn)As. The magnetic properties are probed by transport measurements and p is varied by the application of an…

Materials Science · Physics 2015-05-18 Y. Nishitani , D. Chiba , M. Endo , M. Sawicki , F. Matsukura , T. Dietl , H. Ohno

A recent Letter reports photoemission data for the free C60 molecule, showing an interesting three-peak structure, presented as evidence of dynamic Jahn-Teller (DJT) effect in the C60+ ion. Those data constitute, along with earlier spectra…

Materials Science · Physics 2009-11-10 Nicola Manini , Erio Tosatti

The quantum anomalous Hall effect (QAHE) that emerges under broken time-reversal symmetry in topological insulators (TI) exhibits many fascinating physical properties for potential applications in nano-electronics and spintronics. However,…

We have performed high-pressure, electrical resistivity, and specific heat measurements on CeTe3 single crystals. Two magnetic phases with nonparallel magnetic easy axes were detected in electrical resistivity and specific heat at low…

Strongly Correlated Electrons · Physics 2009-05-02 D. A. Zocco , J. J. Hamlin , T. A. Sayles , M. B. Maple , J. -H. Chu , I. R. Fisher

We have studied experimentally the responses of high quality single crystals of stoichiometric synthetic magnetite to applied weak dc and ac magnetic fields in the range of 6 K to 60 K, far below the Verwey transition. The results can be…

Strongly Correlated Electrons · Physics 2013-11-12 Zdenek Svindrych , Zdenek Janu , Andrzej Kozlowski , Jurgen M. Honig

We report thermal expansion measurements on a single crystal of the superconducting ferromagnet UCoGe for magnetic fields applied along the main orthorhombic axes. The thermal expansion cell was mounted on a piezo-electric rotator in order…

Superconductivity · Physics 2017-04-05 A. M. Nikitin , J. Geldhof , Y. K. Huang , D. Aoki , A. de Visser

Two-dimensional (2D) magnetic materials with strong magnetostriction are interesting systems for strain-tuning the magnetization, enabling potential for realizing spintronic and nanomagnetic devices. Realizing this potential requires…

We describe a detailed study of the structural, magnetic, and magneto-transport properties of single-crystal, n-type, Mn-doped Bi2Te3 thin films grown by molecular beam epitaxy. With increasing Mn concentration, the crystal structure…

Magnetocaloric effect (MCE) was investigated in the single crystal of CsGd(MoO$_4$)$_2$ in the temperature range from 2 to 30 K and fields up to 5 T applied along the easy and hard magnetic axis. The analysis of specific heat and…

Other Condensed Matter · Physics 2017-09-05 V. Tkáč , A. Orendáčová , R. Tarasenko , M. Orendáč , A. Feher

We present a theory to model carrier mediated ferromagnetism in concentrated or diluted local moment systems. The electronic subsystem of the Kondo lattice model is described by a combined equation of motion / coherent potential…

Strongly Correlated Electrons · Physics 2011-04-22 M. Stier , W. Nolting

An approach combining the Rietveld method and pairs distribution function analysis to study crystalline materials under high pressure or temperature was early proposed by us, and in this study, it was applied to investigate de effect of…

Materials Science · Physics 2018-03-08 J. C. de Lima , Z. V. Borges , C. M. Poffo , S. M. Souza , D. M. Trichês , R. S. de Biasi