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相关论文: Atomic-scale description of the paramagnetic susce…

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A new series of cubic double perovskites Ba$_2R_{2/3}$TeO$_6$ ($R$ = Y, La, Pr, Nd, Sm-Lu) was synthesized via solid state reaction. The $R^{3+}$ and Te$^{6+}$ ions are ordered on alternating octahedral sites, with the rare earth sites 2/3…

材料科学 · 物理学 2019-03-14 Tai Kong , Robert J. Cava

Effects of orbital degeneracy on magnetic susceptibility in paramagnetic phases are investigated within a mean-field theory. Under certain crystalline electric fields, the magnetic moment consists of two independent moments, e.g., spin and…

强关联电子 · 物理学 2009-08-11 Katsunori Kubo , Takashi Hotta

A general expression for temperature-dependent magnetic susceptibility of quantum gases composed of particles possessing both charge and spin degrees of freedom has been obtained within the framework of the generalized random-phase…

量子气体 · 物理学 2015-05-14 J. Bosse , K. N. Pathak , G. S. Singh

Applying the local density and dynamical mean field approximations to paramagnetic \gamma-iron we revisit the problem of theoretical description of magnetic properties in a wide temperature range. We show that contrary to \alpha-iron, the…

强关联电子 · 物理学 2013-10-29 P. A. Igoshev , A. V. Efremov , A. I. Poteryaev , A. A. Katanin , V. I. Anisimov

We present theoretical studies of temperature dependent diamagnetic-paramagnetic transitions in thin quantum rings. Our studies show that the magnetic susceptibility of metal/semiconductor rings can exhibit multiple sign flips at…

介观与纳米尺度物理 · 物理学 2021-01-04 Neal Blackman , Dentcho A. Genov

We contest the interpretation by Gavilano et al. (Phys.Rev.Lett. 90 (2003) 167202) of violation of the Curie law behavior of the paramagnetic susceptibility at low temperatures by means of the quenching of the V4+-ion moment. These results…

强关联电子 · 物理学 2007-05-23 R. J. Radwanski , Z. Ropka

Neutron diffraction studies have been carried out on a single crystal of oxygen-deficient perovskite NdBaCo2O5 in the temperature range of 7-370 K. There have been observed, with decreasing temperature T, two magnetic transitions…

强关联电子 · 物理学 2009-11-10 Minoru Soda , Yukio Yasui , Masafumi Ito , Satoshi Iikubo , Masatoshi Sato , Kazuhisa Kakurai

We report measurements of the magnetic susceptibility of twinned single crystals of YBa$_{2}$Cu$_{3}$O$_{6+x}$ from just above their superconducting transition temperatures to 300 K with magnetic fields of up to 5 T applied parallel and…

超导电性 · 物理学 2016-09-21 I. Kokanović , J. R. Cooper

We study electron correlations and their impact on magnetic properties of bcc vanadium by a combination of density functional and dynamical mean-field theory. The calculated uniform magnetic susceptibility {in bcc structure} is of Pauli…

强关联电子 · 物理学 2023-01-12 A. S. Belozerov , A. A. Katanin , V. I. Anisimov

Using a combination of single-crystal neutron scattering and reverse Monte Carlo refinements, we study the magnetic structure of paramagnetic MnO at a temperature (160\,K) substantially below the Curie-Weiss temperature…

A systematic study of (A,A')2FeMoO6 (A,A'=Ca, Sr, Ba) ferromagnetic oxides with double perovskite structure has been performed using 95,97Mo and 57Fe NMR spectroscopy. These oxides are isoelectronic but have substantially different Curie…

材料科学 · 物理学 2009-11-10 M. Wojcik , E. Jedryka , S. Nadolski , D. Rubi , C. Frontera , J. Fontcuberta , B. Jurca , N. Dragoe , P. Berthet

Materials with a 5d4 electronic configuration are generally considered to have a nonmagnetic ground state (J=0). Interestingly, Sr2YIrO6 (Ir5+ having 5d4 electronic configuration) was recently reported to exhibit long-range magnetic order…

The magnetic nature of the altermagnet candidate RuO$_2$ remains under debate. It has been recently shown from quantum oscillations and angle-resolved photoemission spectroscopy (ARPES) that the high-quality RuO$_2$ bulk single crystal is a…

We analyze recent electron spin resonance (ESR) experiments in La0.7Ca0.3MnO3 and YBaMn2O6 focusing on the behavior of the linewidth at high temperatures where it is a linear function of the temperature. Noting that the g-factors of the…

强关联电子 · 物理学 2013-09-26 D. L. Huber

We report both experimental and theoretical investigations of the physical properties of Ba$_\mathrm{2}$Mn$_\mathrm{2}$Sb$_\mathrm{2}$O single crystals. This material exhibits a hexagonal structure with lattice constants: a = 4.7029(15)…

强关联电子 · 物理学 2012-12-05 J. Li , C. E. Ekuma , I. Vekhter , M. Jarrell , J. Moreno , S. Stadler , A. B. Karki , R. Jin

The Co$_2$Ge$_2$Te$_6$ shows intrinsic ferromagnetic (FM) order, which origins from superexchange interaction between Co and Te atoms, with higher Curie temperature ($T_c$) of 161 K. Co$_2$Ge$_2$Te$_6$ monolayer (ML) is half-metal (HM), and…

材料科学 · 物理学 2022-07-06 Zhaoyong Guan , Ziyuan An , Yuzheng Jiang , Ya Su , Yanyan Jiang , Shuang Ni

We measured electrical resistivity, specific heat and magnetic susceptibility of single crystals of highly conductive oxide Ag_5Pb_2O_6, which has a layered structure containing a Kagome lattice. Both the out-of-plane and in-plane…

超导电性 · 物理学 2009-11-10 Shingo Yonezawa , Yoshiteru Maeno

The energy-level scheme and wave functions of the titanium ions in LaTiO$_{3}$ are calculated using crystal-field theory and spin-orbit coupling. The theoretically derived temperature dependence and anisotropy of the magnetic susceptibility…

The temperature dependence of magnetic susceptibility of the Bi$_{2-y}$Sr$_{y}$Ir$_{2}$O$_{7}$ system was studied from 2 to 300 K. According to these measurements, the solid solution $(0\leq y\leq 0.9)$ does not show any magnetic…

材料科学 · 物理学 2015-06-12 C. Cosio-Castaneda , P. de la Mora , F. Morales , R. Escudero , G. Tavizon

The preparative method, characterization and magnetic susceptibility \chi measurements versus temperature T of the heavy fermion transition metal oxide LiV_{2}O_{4} are reported in detail. The intrinsic \chi(T) shows a nearly T-independent…

强关联电子 · 物理学 2010-11-12 S. Kondo , D. C. Johnston , L. L. Miller
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