中文
相关论文

相关论文: Magnetodielectric behavior in La2CoMnO6 nanopartic…

200 篇论文

We have found a remarkable increase (up to 60 %) of the dielectric constant with the onset of magnetic order at 42 K in the metastable orthorhombic structures of YMnO3 and HoMnO3 that proves the existence of a strong magneto-dielectric…

强关联电子 · 物理学 2009-11-10 B. Lorenz , Y. Q. Wang , Y. Y. Sun , C. W. Chu

We report magnetic and magnetoelectric studies on BiFeO3 and divalent cation (A) suvtitute Bi0.7A0.3FeO3 (A = Sr,Ba, and Sr0.5Ba0.5). It is shown that the rapid increase of magnetization at the Neel temperature (TN = 642 K) is suppressed in…

材料科学 · 物理学 2009-11-13 V. B. Naik , R. Mahendiran

The magnetoelastic coupling in multiferroic $DyMn_2O_5$ is investigated by magnetostriction measurements along the three crystallographic orientations. Strong lattice anomalies as a function of the magnetic field are detected at the low…

强关联电子 · 物理学 2007-05-23 C. R. dela Cruz , B. Lorenz , Y. Y. Sun , C. W. Chu , S. Park , S. -W. Cheong

Magnetic susceptibility, specific heat, and neutron powder diffraction measurements have been performed on polycrystalline Li2Co(WO4)2 samples. Under zero magnetic field, two successive magnetic transitions at TN1 ~ 9.4 K and TN2 ~ 7.4 K…

The spinel NiCr$_2$O$_4$ is characterized using dielectric and high magnetic field measurements. The trends in the magnetodielectric response fall into three clear temperature regimes corresponding to known magnetic and structural…

Measurements of electrical resistivity ($\rho$), DC magnetization ($M$) and specific heat ($C$) have been performed on layered oxide Li$_x$CoO$_2$ (0.25$\leq$$x$$\leq$0.99) using single crystal specimens. The $\rho$ versus temperature ($T$)…

强关联电子 · 物理学 2015-05-19 K. Miyoshi , C. Iwai , H. Kondo , M. Miura , S. Nishigori , J. Takeuchi

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

We present the results of measurements of the dc-magnetic susceptibility chi(T) and the 23Na-NMR response of Na_{0.70}CoO_{2} at temperatures between 50 and 340 K. The chi(T) data suggest that for T > 75 K, the Co ions adopt an effective…

强关联电子 · 物理学 2009-11-10 J. L. Gavilano , D. Rau , B. Pedrini , J. Hinderer , H. R. Ott , S. M. Kazakov , J. Karpinski

In this manuscript, we propose a method to prepare small flakes of DyCu2. On top of that we also report on the magnetocaloric effect and nature of magnetic transition of a strongly anisotropic DyCu2 in its low dimension. Magnetization…

无序系统与神经网络 · 物理学 2016-06-07 M. Venkat Narayana Ganesh Kotnana , S. Narayana Jammalamadaka

Temperature-dependent crystallographic and magnetic studies on stoichiometric single crystals of LiCu2O2 are reported. The magnetic properties are similar to earlier findings demonstrating antiferromagnetic ordering below 25 K. Evidence of…

材料科学 · 物理学 2014-08-26 S. A. Ivanov , P. Anil Kumar , R. Mathieu , A. A. Bush , M. Ottosson , P. Nordblad

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

We report here a comprehensive study on structural, magnetic, caloric and electronic properties of the monoclinic phase of double perovskite compound Tm2CoMnO6 (TCMO) in its polycrysttaline format. Magnetic measurements confirm the presence…

材料科学 · 物理学 2023-07-13 A. Banerjee , Gangadhar Das , V. Rajaji , S. Majumdar , P. K. Chakrabarti

The manganese tellurate Li2MnTeO6 consists of trigonal spin lattices made up of Mn4+ (d3, S = 3/2) ions. The magnetic properties of this compound were characterized by several experimental techniques, which include magnetic susceptibility,…

We report measurements of the resistance of silicon MOSFETs as a function of temperature in high parallel magnetic fields where the 2D system of electrons has been shown to be fully spin-polarized. A magnetic field suppresses the metallic…

强关联电子 · 物理学 2009-10-31 K. M. Mertes , Hairong Zheng , S. A. Vitkalov , M. P. Sarachik , T. M. Klapwijk

The intrinsic noncollinear spin patterns in rare-earth pyrochlore are physically interesting, hosting many emergent properties, e.g. spin ice and monopole-type excitation. Recently, the magnetic monopole excitation of spin ice systems was…

材料科学 · 物理学 2015-12-18 Lin Lin , Y. L. Xie , J. -J. Wen , Shuai Dong , Z. B. Yan , J. -M. Liu

The magnetotransport properties were studied in hundreds of micrometer length double-wall carbon nanotubes (DWCNT) bundles. Above 15 K the resistance shows an ohmic behavior and its temperature dependence is well described using the…

强关联电子 · 物理学 2015-03-03 J. Barzola-Quiquia , P. Esquinazi , M. Lindel , D. Spemann , M. Muallem , G. D. Nessim

Double perovskite (DP) oxide material receive extensive research interest due to exciting physical properties with potential technological application. 3$d$ based DP oxides are promising for exciting physics like magnetodielectric,…

强关联电子 · 物理学 2019-04-26 Ilyas Noor Bhatti , Rabindra Nath Mahato , Imtiaz Noor Bhatti , M. A. H. Ahsan

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

A detailed investigation of Ba$_2$MnGe$_2$O$_7$ was performed in its low-temperature magnetoelectric state combining neutron diffraction with magnetization measurements on single crystals. In the paramagnetic state at 10 K, polarized…

强关联电子 · 物理学 2023-03-07 A. Sazonov , H. Thoma , R. Dutta , M. Meven , A. Gukasov , R. Fittipaldi , V. Granata , T. Masuda , B. Náfrádi , V. Hutanu

We report electrical, magnetic, magnetodielectric and magnetoabsorption properties of a polycrystalline GaFeO3. The resistivity measurement shows that the sample is highly insulating below 200 K and the resistivity above 200 K obey the…

材料科学 · 物理学 2015-05-14 V. B. Naik , R. Mahendiran