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相关论文: Magnetic behavior of nanocrystalline ErCo2

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The magnetic behavior of the quaternary compounds, RCr2Si2C (R = La, Ce), has been investigated by magnetization (M) and heat-capacity (C) measurements (1.8-300 K) in the bulk polycrystals and nano forms (<1 {\mu}m) obtained by high-energy…

强关联电子 · 物理学 2011-11-29 K. Mukherjee , Kartik K. Iyer , E. V. Sampathkumaran

The Laves phase compound, YCo2, is a well-known exchange-enahnced Pauli paramagnet. We report here that, in the nanocrystalline form, this compound interestingly is an itinerant ferromagnet at room temperature with a low coercive-field. The…

A systematic x-ray magnetic circular dichroism study of the paramagnetic phase of ErCo2 has recently allowed to identify the inversion of the net magnetization of the Co net moment with respect to the applied field well above the…

其他凝聚态物理 · 物理学 2009-07-23 Julia Herrero-Albillos , Luis Miguel Garcia , Fernando Bartolome

Susceptibility, specific heat, and muon spin rotation measurements on high-quality single crystals of $\rm Na_{0.82}CoO_2$ have revealed bulk antiferromagnetism with N\'{e}el temperature $\rm T_N = 19.8 \pm 0.1$ K and an ordered moment…

强关联电子 · 物理学 2009-11-10 S. Bayrakci , C. Bernhard , D. P. Chen , B. Keimer , R. K. Kremer , P. Lemmens , C. T. Lin , C. Niedermayer , J. Strempfer

The magnetic properties and magnetocaloric effect of an intermetallic compound $\mathrm{Er_2Rh_3Si}$ was investigated by performing temperature dependence of dc- and ac-magnetic susceptibility and isothermal magnetizations. Polycrystalline…

强关联电子 · 物理学 2021-09-21 Baidyanath Sahu , Andre M. Strydom

In this report, the magnetic behaviour of $NiCr_{2}O_{4}$ bulk and nanoparticle samples under different applied magnetic field has been investigated extensively. Nanoparticles of $NiCr_{2}O_{4}$ were obtained by mechanical milling of…

强关联电子 · 物理学 2013-11-26 H. Singh , T. Ono , T. Chakraborty , K. Srikanth , A. Venimadhav , R. Chandra , C. Mitra , U. Kumar

Fine particles of some of the extensively studied 'enhanced' Pauli paramagnets - LuCo2, ScCo2, ZrCo2 and CeRu2Si2, have been prepared by high-energy ball-milling and investigated for their magnetic behavior. In the case of Co systems, these…

强关联电子 · 物理学 2009-06-29 Sitikantha D. Das , S. Narayana Jammalamadaka , Kartik K Iyer , E. V. Sampathkumaran

LaCoO3 (LCO) nanoparticles were synthesized and their magnetic and structural properties were examined using SQUID magnetometery and neutron diffraction. The nanoparticles exhibit ferromagnetic long-range order beginning at T_C…

强关联电子 · 物理学 2013-11-04 A. M. Durand , D. P. Belanger , F. Ye , S. Chi , J. A. Fernandez-Baca , C. H. Booth , M. Bhat

The compound, LaMn2Ge2, crystallizing in ThCr2Si2-type tetragonal crystal structure, has been known to undergo ferromagnetic order below (T_C=) 326 K. In this article, we report the magnetic behavior of nanocrystalline form of this…

强关联电子 · 物理学 2008-06-13 S. Narayana Jammalamadaka , Sitikantha D Das , B. A. Chalke , E. V. Sampathkumaran

We present a study on the magnetic susceptibility $\chi(T)$ and electrical resistance, as a function of temperature and magnetic field $R(T,H)$, of the ferromagnetic heavy fermion YbNi$_2$. The X-ray diffraction analysis shows that the…

强关联电子 · 物理学 2018-06-26 O. Olicón , R. Escamilla , A. Conde-Gallardo , F. Morales

The rare earth magnetic order in pure and doped Er$_{(1-x)}$Ho$_{x}$Ni$_2$B$_2$C (x~=~0,~0.25,~0.50,~0.75,~1) single crystal samples was investigated using magnetization and neutron diffraction measurements. Superconducting quaternary…

We have investigated the magnetic behavior of the nano crystals, synthesized by high-energy ball-milling, for a well-known geometrically frustrated spin-chain system, Ca3CoRhO6, and compared its magnetic characteristics with those of the…

强关联电子 · 物理学 2015-05-13 Niharika Mohapatra , Kartik K Iyer , B. A. Chalke , E. V. Sampathkumaran

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 Eu-based compound, EuCu2As2, crystallizing in the ThCr2Si2-type tetragonal structure, has been synthesized and its magnetic behavior has been investigated by magnetization (M), heat-capacity (C) and electrical resistivity (rho)…

强关联电子 · 物理学 2009-11-11 Kausik Sengupta , P. L. Paulose , E. V. Sampathkumaran , Th. Doert , J. P. F. Jemetio

We report on the physical properties of the series Ce_(1-x)La_xIr_2B_2 (x D 0-0.9), obtained by means of magnetization, heat capacity and electrical resistivity measurements as a function of temperature (down to 0.7 K for the latter two…

强关联电子 · 物理学 2015-06-05 K Mukherjee , Kartik K Iyer , E V Sampathkumaran

We report experimental and theoretical studies of magnetic and related properties of ErRuSi compound. Various experimental techniques such as neutron diffraction, magnetization, magneto-thermal, magneto-transport, optical have been used to…

强关联电子 · 物理学 2019-09-19 Sachin Gupta , A. Das , K. G. Suresh , A. Hoser , Yu. V. Knyazev , Yu. I. Kuz'min , A. V. Lukoyanov

We report on a 59Co NMR investigation of the trigonal cobaltate Ca3Co2O6 carried out on a single crystal, providing precise determinations of the electric field gradient and chemical shift tensors, and of the internal magnetic fields at the…

强关联电子 · 物理学 2015-05-20 G. Allodi , R. De Renzi , S. Agrestini , C. Mazzoli , M. R. Lees

We report the results of dc susceptibility and heat capacity measurements on the (ball-milled) nanocrystalline rare-earth (R) ternary compound, crystallizing in Gd4RhIn type, cubic Dy4RhAl compound. The bulk form of this compound has been…

强关联电子 · 物理学 2024-04-16 Kartik K Iyer , Kalobaran Maiti , S. Rayaprol , B A Chalke , E. V. Sampathkumaran

ZnO nanoparticles with Wurtzite structure were prepared by chemical methods at low temperature in aqueous solution. Nanoparticles are in the range from about 10 to 30 nm. Ferromagnetic properties were observed from 2 K to room temperature…

介观与纳米尺度物理 · 物理学 2015-05-20 R. Escudero , R. Escamilla

Processing magnetocaloric materials into magnetic refrigerants with appropriate shapes is essential for the development of magnetic refrigeration systems. In this context, the impact of processing on the physical properties of…

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