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相关论文: Magnetic properties of Gd3+ ions in the spatially …

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A new potential energy surface for the electronic ground state of the simplest triatomic anion H3- is determined for a large number of geometries. Its accuracy is improved at short and large distances compared to previous studies. The…

原子物理 · 物理学 2015-05-18 M. Ayouz , O. Dulieu , R. Guerout , J. Robert , V. Kokoouline

The role played by the Nd ions in the magnetic properties of Nd0.5Ca0.5MnO3 and Nd0.7Ca0.3MnO3 is studied using static magnetization, neutron diffraction and high frequency (9.4-475GHz) Electron Spin Resonance. We show that the Nd ions are…

强关联电子 · 物理学 2009-11-07 F. Dupont , F. Millange , S. de Brion , A. Janossy , G. Chouteau

The experimentally observed ferromagnetism in MgB2 in the normal state is attributed to micro phase separated inclusions of iron. This magnetic character is also observed when the iron content of the samples is reduced below 20 micro-g/g,…

超导电性 · 物理学 2007-05-23 S. Reich , G. Leitus , I. Felner

Magnetization has been measured for polycrystalline samples of LaCo1-xRhxO3 (0 {\leq} x {\leq} 0.9) in order to investigate magnetism induced in the solid solution of two nonmagnetic end phases of LaCoO3 and LaRhO3. It is found that a…

强关联电子 · 物理学 2011-09-13 Shinichiro Asai , Noriyasu Furuta , Yukio Yasui , Ichiro Terasaki

The structural and magnetic properties of BaMn2Si2O7 have been investigated. The magnetic susceptibility and specific heat, measured using single crystals, suggest that the quasi-one-dimensional magnetism originating from the loosely…

材料科学 · 物理学 2015-06-17 J. Ma , C. D. Dela Cruz , T. Hong , W. Tian , A. A. Aczel , Songxue Chi , J. -Q. Yan , Z. L. Dun , H. D. Zhou , M. Matsuda

We present theoretical and experimental investigations of the magnetism of paramagnetic semiconductor CdSe:Mn nanocrystals and propose an efficient approach to the exposure and analysis of the underlying anti-ferromagnetic interactions…

介观与纳米尺度物理 · 物理学 2019-02-06 Shou-Jyun Zou , Sheng-Tsung Wang , Ming-Fan Wu , Wen-Bin Jian , Shun-Jen Cheng

The magnetic properties of RNi4Ga (R = La, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm and Lu) compounds have been investigated. These compounds form in a hexagonal CaCu5 type structure with a space group P6/mmm. Compounds with the magnetic rare…

强关联电子 · 物理学 2009-11-11 Devang A. Joshi , C. V. Tomy D. S. Rana , R. Nagarajan , S. K. Malik

The first successful measurements of a sub-lattice magnetism with 51V NMR techniques in the sigma-phase Fe(100-x)Vx alloys with x = 34.4, 39.9 and 47.9 are reported. Vanadium atoms present on all five crystallographic sites are magnetic.…

材料科学 · 物理学 2015-05-13 S. M. Dubiel , J. R. Tozoni , J. Cieslak , D. C. Braz , E. L. G. Vidoto , T. J. Bonagamba

The large, so-called colossal, magnetoresistivity of doped manganese oxides based on LaMnO3 has attracted considerable attention, but only one unusual feature of the ferromagnetic transition in these compounds. We examine in this paper the…

强关联电子 · 物理学 2009-11-10 M. B. Salamon , S. H. Chun

We report the low-temperature properties of SrNd$_2$O$_4$, a geometrically frustrated magnet. Magnetisation and heat capacity measurements performed on polycrystalline samples indicate the appearance of a magnetically ordered state at…

强关联电子 · 物理学 2021-04-28 N. Qureshi , A. Wildes , C. Ritter , B. Fåk , S. X. M. Riberolles , M. Ciomaga Hatnean , O. A. Petrenko

Recent thermodynamic measurements on two-dimensional (2D) electron systems have found diverging behavior in the magnetic susceptibility and appearance of ferromagnetism with decreasing electron density. The critical densities for these…

强关联电子 · 物理学 2007-05-23 S. M. Fazeli , K. Esfarjani , B. Tanatar

We report a polarised neutron study of the magnetic structures and phase trasitions in \gdc\ in low magnetic fields. These experiments have been complemented by integrated intensity measurements with unpolarised neutrons in zero field.…

强关联电子 · 物理学 2012-07-03 P. J. Brown , T. Chatterji

The bulk magnetic properties of the lanthanide metaborates, $Ln$(BO$_2$)$_3$, $Ln$ = Pr, Nd, Gd, Tb are studied using magnetic susceptibility, heat capacity and isothermal magnetisation measurements. They crystallise in a monoclinic…

材料科学 · 物理学 2017-09-05 P Mukherjee , E Suard , S E Dutton

We study the effect of a strong magnetic field on the proton and neutron spin polarization and magnetic susceptibility of asymmetric nuclear matter within a relativistic mean-field approach. It is shown that magnetic fields $B \sim 10^{16}…

核理论 · 物理学 2015-06-23 A. Rabhi , M. A. Pérez-García , C. Providência , I. Vidaña

Using SQUID magnetometry techniques, we have studied the change in magnetization versus applied ac electric field, i.e. the magnetoelectric (ME) susceptibility dM/dE, in the chiral-lattice ME insulator Cu2OSeO3. Measurements of the dM/dE…

强关联电子 · 物理学 2014-02-13 A. A. Omrani , J. S. White , K. Prša , I. Živković , H. Berger , A. Magrez , Ye-Hua Liu , J. H. Han , H. M. Rønnow

Fifteen parameters characterizing the crystal field of rare-earth ions in the RMO$_3$ perovskites (R = Pr, Nd, M = Ga, Co) are calculated by expanding the local Hamiltonian expressed in the basis of Wannier functions into a series of…

强关联电子 · 物理学 2013-10-24 P. Novak , K. Knizek , M. Marysko , Z. Jirak , J. Kunes

Temperature (4.2-260 K) and magnetic field (0-50 kOe) dependencies of the dc electrical resistance, dc magnetization, and ac magnetic susceptibility of (Sm0.65Sr0.35)MnO3 prepared from high purity components have been studied.

材料科学 · 物理学 2007-05-23 E. M. Levin , P. M. Shand

Motivated by the precision attained by SQUID devices in measuring magnetic fields, we study in this article the thermodynamic behaviour of a fermion gas in two and three dimen\-sional spatial space with noncommutative coordinates and…

高能物理 - 理论 · 物理学 2016-06-14 S. Franchino Viñas , F. Vega

We report the low temperature magnetic properties of Nd$^{3+}$ pyrochlore $\rm Nd_2ScNbO_7$. Susceptibility and magnetization show an easy-axis moment, and heat capacity reveals a phase transition to long range order at $T_N=371(2)$ mK with…

强关联电子 · 物理学 2022-08-11 A. Scheie , M. Sanders , Yiming Qiu , T. R. Prisk , R. J. Cava , C. Broholm

Magnetic properties of the quasicrystal approximant Au$_{65}$Ga$_{21}$Tb$_{14}$ were investigated by the magnetization and the neutron diffraction experiments. The temperature dependences of the magnetic susceptibility and the magnetization…

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