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相关论文: Magnetic instabilities in quasi-one-dimensional Cr…

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Magnetic properties of polycrystalline Sm0.1Ca0.84Sr0.06MnO3 in pristine and metastable states have been investigated in wide range of temperatures and magnetic fields. It was found that below Curie temperature TC = 105 K the pristine state…

强关联电子 · 物理学 2007-05-23 V. Markovich , I. Fita , R. Puzniak , C. Martin , K. Kikoin , A. Wisniewski , S. Hebert , A. Maignan , G. Gorodetsky

Dynamical hysteresis is a phenomenon which arises in ferromagnetic systems below the critical temperature as a response to adiabatic variations of the external magnetic field. We study the problem in the context of the mean-field Ising…

概率论 · 数学 2013-12-03 Gioia Carinci

We report on neutron diffraction, thermal expansion, magnetostriction, dielectric, and specific heat measurements on polycrystalline FeCr2S4 in external magnetic fields. The ferrimagnetic ordering temperatures $T_{\mathrm{C}}\approx 170$ K…

We report the results of low-temperature measurements of the specific heat Cp(T), ac susceptibility chi(T) and 23Na nuclear magnetic resonance NMR of Na2V3O7. At liquid He temperatures Cp(T)/T exhibits broad field-dependent maxima, which…

强关联电子 · 物理学 2009-11-11 J. L. Gavilano , E. Felder , D. Rau , H. R. Ott , P. Millet , F. Mila , T. Cichorek , A. C. Mota

The magnetoresistance (MR) and the magnetization isotherms were studied up to high magnetic fields at T = 3 K and 300 K for a microcrystalline ($\mu$c) Ni foil corresponding to bulk Ni and for a nanocrystalline (nc) Ni foil. At T = 3 K, for…

材料科学 · 物理学 2022-08-12 I. Bakonyi , F. D. Czeschka , L. F. Kiss , V. A. Isnaini , A. T. Krupp , K. Palotás , S. Zsurzsa , L. Péter

We report a systematic investigation of dc magnetization and ac susceptibility, as well as anisotropic magnetocaloric effect in bulk CrI$_3$ single crystals. A second-stage magnetic transition was observed just below the Curie temperature…

强关联电子 · 物理学 2018-05-22 Yu Liu , C. Petrovic

The magnetism in Mn$_3$Si$_2$Te$_6$ has been investigated using thermodynamic measurements, first principles calculations, neutron diffraction and diffuse neutron scattering on single crystals. These data confirm that Mn$_3$Si$_2$Te$_6$ is…

The compounds, Gd6Co1.67Si3 and Tb6Co1.67Si3, recently reported to form in a Ce6Ni2Si3-derived hexagonal structure (space group: P6_3 / m) and to order magnetically below 295 and 190 K respectively, have been investigated by detailed…

Based on first-principles electron structure calculations and employing the frozen-magnon approximation we study the exchange interactions in a series of transition-metal binary alloys crystallizing in the zinc-blende structure and…

材料科学 · 物理学 2009-11-11 E. Sasioglu , I. Galanakis , L. M. Sandratskii , P. Bruno

Precise magnetic hysteresis measurements of small single crystals of Mn$_{12}$ acetate of spin 10 have been conducted down to 0.4 K using a high sensitivity Hall magnetometer. At higher temperature (>1.6K) step-like changes in magnetization…

介观与纳米尺度物理 · 物理学 2009-10-31 Andrew D. Kent , Yicheng Zhong , Louisa Bokacheva , Daniel Ruiz , David N. Hendrickson , M. P. Sarachik

Thermodynamic properties of cubic Heisenberg ferromagnets with competing exchange interactions are considered near the frustration point where the coefficient $D$ in the spin-wave spectrum $E_{\mathbf{k}}\sim D k^{2}$ vanishes. Within the…

强关联电子 · 物理学 2015-04-21 A. N. Ignatenko , A. A. Katanin , V. Yu. Irkhin

Using zero temperature Monte Carlo simulations we have studied the magnetic hysteresis in a three-dimensional Ising model with nearest neighbor exchange and dipolar interaction. The average magnetization of spins located inside a sphere on…

凝聚态物理 · 物理学 2009-10-31 Gyorgy Szabo , Gyorgy Kadar

We report temperature (T) dependence of dc magnetization, electrical resistivity (rho(T)), and heat-capacity of rare-earth (R) compounds, Gd3RuSn6 and Tb3RuSn6, which are found to crystallize in the Yb3CoSn6-type orthorhombic structure…

强关联电子 · 物理学 2017-06-28 Sanjay K Upadhyay , Kartik K Iyer , E. V. Sampathkumaran

The thermodynamics of layered antiferro- and ferromagnets with a weak interlayer coupling and/or easy-axis anisotropy is investigated. A crossover from an isotropic 2D-like to 3D Heisenberg (or 2D Ising) regime is discussed within the…

强关联电子 · 物理学 2007-05-23 V. Yu. Irkhin , A. A. Katanin

We have investigated the effect of temperature on magnetic properties of Bi$_{0.9}$Gd$_{0.1}$Fe$_{1-x}$Ti$_x$O$_3$ (x = 0.00-0.20) multiferroic system. Unexpectedly, the coercive fields ($H_{c}$) of this multiferroic system increased with…

材料科学 · 物理学 2016-03-29 Bashir Ahmmad , M. Z. Islam , Areef Billah , M. A. Basith

We study magnetization reversal and first order reversal curves for two different magnetic topological semimetals, Co3Sn2S2 and Fe3GeTe2, in a wide temperature range. For the magnetization reversal, we observe strong temperature dependence…

介观与纳米尺度物理 · 物理学 2023-03-31 A. A. Avakyants , N. N. Orlova , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

Magnetic dc susceptibility between 1.5 and 800 K, ac susceptibility and magnetization, thermodynamic properties, temperature dependence of radio and audio-wave dielectric constants and conductivity, contact-free dielectric constants at…

Hysteretic magnetoresistance (MR) is often used as a signature of ferromagnetism in conducting oxide thin films and heterostructures. Here, magnetotransport is investigated in a non-magnetic uniformly La-doped SrSnO3 film grown using hybrid…

The temperature dependence of resistivity, magnetization and electron-spin resonance of the $\alpha- MnS $ single crystal were measured in temperature range of $5 K < T < 550 K$. Magnetization hysteresis in applied magnetic field up to 0.7…

The results of dc magnetization, electrical and magnetoresistance and heat capacity measurements (2-300 K) on Tb7Rh3, crystallizing in Th7Fe3-type hexagonal structure, are reported. In this compound, magnetic ordering sets in around 90 K…

强关联电子 · 物理学 2022-04-26 Kausik Sengupta , Kartik K Iyer , E. V. Sampathkumaran