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(Mn,Fe)2(P,Si) single crystals have been successfully grown by flux method. Single crystal diffraction demonstrates that Mn0.83Fe1.17P0.72Si0.28 crystallizes in a hexagonal crystal structure (space group P-62m) at both 100 and 280 K, in the…

材料科学 · 物理学 2015-08-03 H. Yibole , F. Guillou , Y. K. Huang , G. R. Blake , A. J. E. Lefering , N. H. van Dijk , E. Brück

The temperature and magnetic field dependencies of Ni-Mn-Ga polycrystals deformation are investigated. Ingots were prepared by arc-melting in argon atmosphere and further annealing. A training procedure (cycling across the martensitic…

材料科学 · 物理学 2009-11-10 A. A. Cherechukin , V. V. Khovailo , R. V. Koposov , E. P. Krasnoperov , T. Takagi , J. Tani

We report the single crystal growth and anisotropic magnetic properties of the tetragonal RAg$_2$Ge$_2$ (R = Pr, Nd and Sm) compounds which crystallize in the ThCr$_2$Si$_2$ type crystal structure with the space group \textit{I4/mmm}. The…

强关联电子 · 物理学 2015-05-13 Devang A. Joshi , R. Nagalakshmi , R. Kulkarni , S. K. Dhar , A. Thamizhavel

In ferromagnetic alloys with shape memory large reversible strains can be obtained by rearranging the martensitic domain structure by a magnetic field. Magnetization through displacement of domain walls is possible in the presence of high…

材料科学 · 物理学 2016-08-31 A. N. Vasil'ev , V. D. Buchel'nikov , T. Takagi , V. V. Khovailo , E. I. Estrin

Single crystals of R$_2$CoGa$_8$ series of compounds were grown, for the first time, by high temperature solution growth (flux) method. These compounds crystallize in a tetragonal crystal structure with the space group $P4/mmm$. It has been…

强关联电子 · 物理学 2008-01-30 Devang A. Joshi , R. Nagalakshmi , S. K. Dhar , A. Thamizhavel

Magnetic properties of high-quality Al-free nonsuperconducting GdBa_2Cu_3O_{6+y} single crystals grown by flux method have been studied. The magnetic anisotropy below the N\'eel temperature T_N~2.3K corresponds to the direction of Gd^{3+}…

材料科学 · 物理学 2016-08-31 V. N. Narozhnyi , D. Eckert , G. Fuchs , V. Nekvasil , K. -H. Müller

The anisotropic magnetic properties of the antiferromagnetic compound CePd$_2$Ge$_2$, crystallizing in the tetragonal crystal structure have been investigated in detail on a single crystal grown by Czochralski method. From the electrical…

强关联电子 · 物理学 2015-06-16 Arvind Maurya , R. Kulkarni , S. K. Dhar , A. Thamizhavel

The first order martensitic transition in the ferromagnetic shape memory alloy Ni45Co5Mn38Sn12 is also a magnetic transition and has a large field induced effect. While cooling in the presence of field this first order magnetic martensite…

材料科学 · 物理学 2013-01-22 Archana Lakhani , A. Banerjee , P. Chaddah , X. Chen , R. V. Ramanujan

Single crystals of CeGe and its non-magnetic analogue LaGe have been grown by Czochralski method. CeGe compound crystallizes in the orthorhombic FeB-type crystal structure with the space group \textit{Pnma} (#62). The anisotropic magnetic…

强关联电子 · 物理学 2012-07-18 Pranab Kumar Das , Neeraj Kumar , R. Kulkarni , S. K. Dhar , A. Thamizhavel

The Prototypical magnetic memory shape alloy Ni$_2$MnGa undergoes various phase transitions as a function of temperature, pressure, and doping. In the low-temperature phases below 260 K, an incommensurate structural modulation occurs along…

Single crystals of undoped CaFe2As2 were grown by a FeAs self-flux method, and the crystals were quenched in ice-water rapidly after high temperature growth. The quenched crystal undergoes a collapsed tetragonal structural phase transition…

The temperature dependent crystal structure analysis in martensitic phase of Ni_2Mn_(1+x)Sn_(1-x) (x = 0.40 and 0.44) magnetic shape memory alloy is performed using X-ray diffraction. The martensitic phase consists of 4-Layered and…

材料科学 · 物理学 2017-01-31 Soumyadipta Pal , Sandeep Singh , Chhayabrita Maji

We report the crystal growth by chemical vapor transport together with a thorough structural and magnetic characterization of the quasi-2D magnets (Fe$_{1-x}$Ni$_x$)$_2$P$_2$S$_6$ with $x_\textrm{Ni} = \textrm{0, 0.3, 0.5, 0.7, 0.9 & 1}$.…

We report an optimized chemical vapor transport method to grow single crystals of (Mn$_{1-x}$Ni$_x$)$_2$P$_2$S$_6$ where x = 0, 0.3, 0.5, 0.7 & 1. Single crystals up to 4\,mm\,$\times$\,3\,mm\,$\times$\,200\,$\mu$m were obtained by this…

强关联电子 · 物理学 2021-07-09 Y. Shemerliuk , Y. Zhou , Z. Yang , G. Cao , A. U. B. Wolter , B. Büchner , S. Aswartham

Ferromagnetic shape memory alloys (MSMAs), such as Ni-Mn-Ga single crystals, can exhibit the shape memory effect due to an applied magnetic field at room temperature. Under a variable magnetic field and a constant bias stress loading, MSMAs…

材料科学 · 物理学 2023-01-20 Md Esharuzzaman Emu

The equiatomic PrGe single crystal was grown by Czochralski pulling method. The grown single crystal was found to have CrB-type orthorhombic crystal structure with the space group \textit{Cmcm} (#63). Transport and magnetization data reveal…

强关联电子 · 物理学 2012-10-30 Pranab Kumar Das , K. Ramesh Kumar , R. Kulkarni , S. K. Dhar , A. Thamizhavel

Magnetization, susceptibility, specific heat, resistivity, neutron and x-ray diffraction have been used to characterize the properties of single crystalline CaFe2-xNixAs2 as a function of Ni doping for x varying from 0 to 0.1. The combined…

We report the anisotropic magnetic properties of the ternary compound ErAl$_2$Ge$_2$. Single crystals of this compound were grown by high temperature solution growth technique,using Al:Ge eutectic composition as flux. From the powder x-ray…

强关联电子 · 物理学 2020-04-22 Moumita Nandi , A. Thamizhavel , S. K. Dhar

The effect of random competing single-ion anisotropies in antiferromagnets was studied using epitaxial Mn$_x$Ni$_{1-x}$F$_2$ antiferromagnetic thin film alloys grown via molecular beam epitaxy. The crystal structure of this material is…

材料科学 · 物理学 2023-09-11 Ryan Van Haren , Nessa Hald , David Lederman

Structural and thermodynamic properties of single-crystalline UNi$_{1-x}$Ge$_2$ with $x$\,=\,0.66 have been investigated by measuring magnetization, specific heat, and thermal expansion over a wide range of temperatures and magnetic fields.…

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