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The role of slight changes of the chemical composition on antiferromagnetic ordering of Cr in rare-earth orthochoromites was investigated on a series of ceramic solid-solutions Ce$_{1-x}$Eu${_x}$O$_3$ where x varied from 0 to 1. Gradual…

强关联电子 · 物理学 2018-02-14 M. Taheri , F. S. Razavi , Z. Yamani , R. Flacau , C. Ritter , S. Bette , R. K. Kremer

Transition metal telluride compositions are explored extensively for their unique magnetic behavior. Since chromium telluride (Cr2Te3) exhibits a near-room-temperature phase transition, the material can be effectively used in applications…

The effects of Co2+ doping on the structural, magnetic and dielectric properties of the multiferroic frustrated antiferromagnet Mn3TeO6 have been investigated. Ceramic samples of the solid solution series Mn3-xCoxTeO6 were prepared by a…

材料科学 · 物理学 2014-04-15 S. A. Ivanov , R. Mathieu , P. Nordblad , C. Ritter , R. Tellgren , N. Golubko , A. Mosunov , E. D. Politova , M. Weil

We report the enhancement of N\'eel temperature of Cr2O3 by replacing 50% of Cr by Fe prepared by sol-gel method. The structural analysis by neutron diffraction has revealed that FeCrO3 belongs to a corundum structure (R-3c space group)…

材料科学 · 物理学 2019-11-26 Rajesh kumar R , C. Dhanasekhar , N. Vijay Prakash Chaudhary , A. Das , A. Venimadhav

Mn3TeO6 exhibits a corundum-related A3TeO6 structure and a complex magnetic structure involving two magnetic orbits for the Mn atoms [*]. Mn3-xCdxTeO6 (x=0, 1, 1.5 and 2) ceramics were synthesized by solid state reaction and investigated…

材料科学 · 物理学 2012-01-20 S. A. Ivanov , R. Mathieu , P. Nordblad , E. Politova , R. Tellgren , C. Ritter , V. Proidakova

We investigated the evolution of the temperature-composition phase diagram of Fe$_{1+y}$Te upon Se substitution. In particular, the effect of Se substitution on the two-step, coupled magneto-structural transition in Fe$_{1+y}$Te single…

超导电性 · 物理学 2015-05-12 Dona Cherian , S. Rößler , S. Wirth , Suja Elizabeth

The magnetic structure and phase diagram of the layered ferromagnetic compound Fe$_3$GeTe$_2$ has been investigated by a combination of synthesis, x-ray and neutron diffraction, high resolution microscopy, and magnetization measurements.…

强关联电子 · 物理学 2016-01-13 Andrew F. May , Stuart Calder , Claudia Cantoni , Huibo Cao , Michael A. McGuire

Neutron and X-ray diffraction, magnetic susceptibility, and specific heat measurements have been used to investigate the magnetic and structural phase transitions of the spinel system Fe1+xCr2-xO4(0.0<=x<=1.0). The temperature versus Fe…

We report a sequence of continuous phase transformations in iron telluride, Fe1+yTe (y~0.1), which is observed by combining neutron diffraction, magnetic susceptibility, and specific heat measurements on single crystal samples. While a…

We have prepared the complete delafossite solid solution series between diamagnetic CuAlO2 and the t2g^3 frustrated antiferromagnet CuCrO2. The evolution with composition x in CuAl(1-x)Cr(x)O2 of the crystal structure and magnetic…

材料科学 · 物理学 2012-10-03 Phillip T. Barton , Ram Seshadri , Andrea Knöller , Matthew J. Rosseinsky

The Ce(1-x)LaxCrGe3 (x = 0, 0.19, 0.43, 0.58 and 1) intermetallic compound system has been investigated by magnetization measurements and neutron scattering techniques to determine the effect of La-doping on the magnetic ordering and…

We have studied the effect of Fe substitution on magnetic and magnetocaloric properties in La0.7Sr0.3Mn1-xFexO3 (x = 0.05, 0.07, 0.10, 0.15, and 0.20) over a wide temperature range (T = 10-400 K). It is shown that substitution by Fe…

材料科学 · 物理学 2009-09-28 C. Krishnamoorthi , S. K. Barik , R. Mahendiran

Heusler alloy Fe2CrAl exhibits a ferromagnetic behaviour below Curie temperature (TC) ~ 202 K along with presence of cluster glass (CG) phase near freezing temperature (Tf) ~ 3.9 K and Griffiths phase (GP) above 300 K. The physical…

材料科学 · 物理学 2021-10-22 Kavita Yadav , K. Mukherjee

We have systematically studied the magnetic properties of chromium chalcogene compounds FeCr$_2$Se$_{4-x}$Te$_x$. The FeCr2Se4 undergoes antiferromagnetic ordering below 222 K. Substitution of tellurium lowers the antiferromagnetic ordering…

材料科学 · 物理学 2019-04-16 C. S. Yadav , S. K. Pandey , P. L. Paulose

In this article, we investigated the effect of Cr substitution in place of Fe on the structural, magnetic and transport properties of $\mathrm{Co_2FeSi}$ alloy. A comprehensive structural analysis is done using X-ray diffraction (XRD) and…

材料科学 · 物理学 2018-11-14 Deepika Rani , Jiban Kangsabanik , K. G. Suresh , N. Patra , D. Bhattacharyya , S. N. Jha , Aftab Alam

The evolution of the nuclear and magnetic structures of TlFe$_{1.6}$Se$_2$ was determined in the temperature range of 5-450\,K using single crystal neutron diffraction. The Fe layers in these materials develop a corrugation in the…

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

The effects of sintering temperature (Ts) and chemical substitution on the structural and magnetic properties of manganite compounds La1-xSrxMn1-yFeyO3 (0.025 <= x <= 0.7; y= 0.01,0.15) are explored in a search to optimize their…

材料科学 · 物理学 2024-04-30 N. Brahiti , M. Balli , M. Abbasi Eskandari , A. El Boukili , P. Fournier

We investigate the temperature evolution of the structural parameters of potential ferrotoroidic LiFeSi2O6 compound across structural and magnetic phase transitions. The structural transition (TS)is around 220K and the paramagnetic to…

强关联电子 · 物理学 2019-09-04 R. K. Maurya , Priyamedha Sharma , R. Rawat , R. S. Singh , R. Bindu

Fe$_{3}$GeTe$_{2}$ is a two-dimensional van der Waals material with a ferromagnetic ground state and a maximum transition temperature $T_{\mathrm{c}}\sim225$ K. However, when Fe$_{3}$GeTe$_{2}$ is synthesized lower values of…

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