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Here we perform $ab-initio$ study of Curie temperature $T_C$ under hydrostatic pressure for intermetallic compound GdFe$_2$. To calculate $T_C$ for GdFe$_2$ we applied mean-field solution of the Heisenberg model for several magnetic…

材料科学 · 物理学 2019-07-23 Kokorina E. E. , Medvedev M. V. , Nekrasov I. A

We performed the DC-magnetization and neutron scattering experiments under pressure {\it P} for a pressure-induced superconductor UGe$_2$. We found that the magnetic moment is enhanced at a characteristic temperature {\it T}$^{*}$ in the…

强关联电子 · 物理学 2009-11-07 N. Tateiwa , K. Hanazono , T. C. Kobayashi , K. Amaya , T. Inoue , K. Kindo , Y. Koike , N. Metoki , Y. Haga , R. Settai , Y. Onuki

The magnetic properties of ThCr_2Si_2-type single crystals ACo_2Se_2 (A = K, Rb and Cs) have been investigated by magnetic susceptibility and isothermal magnetization measurements at various temperatures. The ferromagnetic phase transition…

超导电性 · 物理学 2013-08-15 Jinhu Yang , Bin Chen , Hangdong Wang , Qianhui Mao , Masaki Imai , Kazuyoshi Yoshimura , Minghu Fang

Neutron diffraction experiments on TmTe at pressures up to 7 GPa are reported. The semiconductor-to-metal transition occurring at 2 GPa in this compound is accompanied by the appearance of strong ferromagnetic exchange interactions…

强关联电子 · 物理学 2009-10-30 P. Link , I. N. Goncharenko , J. -M. Mignot , T. Matsumura , T. Suzuki

Effects of columnar defects created by 320 MeV Au irradiation on 2H-NbSe2 single crystals with a dose equivalent matching field up to 16 T were studied. Critical temperature is found to be suppressed almost linearly at a rate of 0.07 K/T.…

超导电性 · 物理学 2022-06-28 Wenjie Li , Sunseng Pyon , Ataru Ichinose , Satoru Okayasu , Tsuyoshi Tamegai

Single crystals of $R$Cd$_{3}$P$_{3}$ ($R$ = La and Ce) have been investigated by magnetization, electrical resistivity, Hall coefficient, and specific heat. Magnetization measurements of CeCd$_{3}$P$_{3}$ demonstrate clear quasi-2D…

强关联电子 · 物理学 2022-06-14 Jeonghun Lee , Anja Rabus , N. R. Lee-Hone , D. M. Broun , Eundeok Mun

Electrical resistivity \rho(T) of the 5f ferromagnet UGa2 was investigated for single-crystal samples as a function of pressure and magnetic field. The Curie temperature monotonously increases from T$_{C}$ = 124 K under quasi-hydrostatic…

强关联电子 · 物理学 2015-02-18 A. V. Kolomiets , J. -C. Griveau , J. Prchal , A. V. Andreev , L. Havela

High-temperature magnetic measurements have been carried out in hydrothermally synthesized greigite (Fe3S4). We show that the Curie temperature of greigite is significantly lower than that for its iron oxide counterpart Fe3O4. The lower TC…

强关联电子 · 物理学 2010-12-13 Jun Wang , Shi-He Cao , Wei Wu , Guo-meng Zhao

MnSn monolayer synthesized recently is a novel two-dimensional ferromagnetic material with a hexagonal lattice, in which three Mn atom come together to form a trimer, making it remarkably different from other magnetic two-dimensional…

材料科学 · 物理学 2024-06-19 Panjun Feng , Xiaohui Zhang , Dapeng Liu , Shuo Zhang , Xun-Wang Yan , Z. Y. Xie

Rutile CrO$_2$ is an important half-metallic ferromagnetic material, which is also widely used in magnetic recording. In an attempt to find the conditions, which lead to the increase the Curie temperature ($T_{\rm C}$), we study…

强关联电子 · 物理学 2016-05-03 I. V. Solovyev , I. V. Kashin , V. V. Mazurenko

The temperature dependence of the low-energy magnetic excitations in the spin-triplet superconductor UTe$_2$ was measured via inelastic neutron scattering in the normal and superconducting states. The imaginary part of the dynamic…

The effect of substitution of Fe by Cr on the structural and magnetic properties of Fe2TeO6 in the system (Fe1-xCrx)2TeO6, (0<x<1) has been investigated on polycrystalline samples synthesized by solid state reaction. The lattice parameters…

We report thermal expansion and heat capacity studies on Li$_2$FeSiO$_4$ single crystals which enable us to investigate the critical behavior in the magnetically quasi-two-dimensional (2D) material. Pronounced $\lambda$-shaped anomalies at…

Interfacing complex oxides in atomically engineered layered structures can give rise to a wealth of exceptional electronic and magnetic properties that surpass those of the individual building blocks. Herein, we demonstrate a ferromagnetic…

We present a first principle study of new class of high-$T_c$ half-heusler ferromagnets NiCrZ (Z = Si, P, Ge, As, Te). The structure and magnetic properties are investigated through the calculation of the electronic structure, equilibrium…

材料科学 · 物理学 2011-10-26 Van An Dinh , Kazunori Sato , Hirosi Katayama-Yoshida

We propose a modified RKKY-technique to evaluate the magnetic properties of the ferromagnetic Kondo-lattice model. Together with a previously developed selfenergy approach to the conduction electron part of the model we get a closed system…

强关联电子 · 物理学 2009-11-07 C. Santos , W. Nolting

Two-color lattice QCD with N_f=4 staggered fermion degrees of freedom (no rooting trick is applied) with equal electric charge q is studied in a homogeneous magnetic background field B and at non-zero temperature T. In order to circumvent…

高能物理 - 格点 · 物理学 2014-04-02 E. -M. Ilgenfritz , M. Muller-Preussker , B. Petersson , A. Schreiber

We present a detailed study of the temperature evolution of the crystal structure, specific heat, magnetic susceptibility and resistivity of single crystals of the paradigmatic valence-fluctuating compound EuIr$_2$Si$_2$. A comparison to…

强关联电子 · 物理学 2019-09-04 Silvia Seiro , Yurii Prots , Kurt Kummer , Helge Rosner , Raúl Cardoso Gil , Christoph Geibel

The research on two-dimensional (2D) van der Waals (vdW) ferromagnets has promoted the development of ultrahigh-density and nanoscale data storage. However, intrinsic ferromagnetism in layered magnets is always subject to many factors, such…

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…

超导电性 · 物理学 2017-04-05 A. M. Nikitin , J. Geldhof , Y. K. Huang , D. Aoki , A. de Visser