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Related papers: Superparamagnetic and metal-like Ru2TiGe: a propit…

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We report results on the temperature dependence of the susceptibilities of a set of MBE-grown short-period EuTe/PbTe antiferromagnetic superlattices having different EuTe layer thicknesses. In-plane and orthogonal susceptibilities have been…

Condensed Matter · Physics 2009-10-30 Lorenzo Bergomi , James J. Chen

We report magnetic and transport properties of single-crystalline EuZn$_{2}$P$_{2}$, which has trigonal CaAl$_2$Si$_2$-type crystal structure and orders antiferromagnetically at $\approx$23~K. Easy $ab$-plane magneto-crystalline anisotropy…

Materials Science · Physics 2023-08-14 Karan Singh , Shovan Dan , A. Ptok , T. A. Zaleski , O. Pavlosiuk , P. Wiśniewski , D. Kaczorowski

In this report, structural, electronic, magnetic and transport properties of quaternary Heusler alloys CoRuMnGe and CoRuVZ (Z = Al, Ga) are investigated. All the three alloys are found to crystallize in cubic structure. CoRuMnGe exhibits…

Materials Science · Physics 2020-03-18 Deepika Rani , Lakhan Bainsla , K. G. Suresh , Aftab Alam

We report on magnetoresistance, Hall and magnetization measurements of Fe2VAl1-xSix Heusler compounds for x= 0.005, 0.015, 0.02. There is a systematic change in the temperature coefficient of resistance (TCR) from negative to positive as…

Materials Science · Physics 2015-10-30 E. P. Amaladass , A. T. Satya , Shilpam Sharma , K. Vinod , V. Srinivas , C. S. Sundar , A. Bharathi

The occurrence of bulk superconductivity at ~22 K is reported in polycrystalline samples of BaFe2-xRuxAs2 for nominal Ru content in the range of x=0.75 to 1.125. A systematic suppression of the spin density wave transition temperature…

Half-Heusler phases (space group F43m, C1b) have recently captured much attention as promising thermoelectric materials for heat-to-electric power conversion in the mid-to-high temperature range. The most studied ones are the RNiSn-type…

Materials Science · Physics 2018-12-06 S. Joseph Poon

We study structural and magnetic properties of rare-earth based semimetals RAuGe (R = Y, Gd-Tm, and Lu) using flux-grown single crystals. These compounds belong to the noncentrosymmetric polar space group P63mc. We confirm the systematic…

The results of micro-structural and detailed magnetization studies are reported here for our recently published TbSr2Cu2.7Mo0.3O7+d superconductor with a transition temperature (Tc) at as high as 80 K [1]. From XRD and EDX the sample was…

Superconductivity · Physics 2009-11-10 V. P. S. Awana , Anurag Gupta , H. Kishan , M. Karppinen , H. Yamauchi , A. V. Narlikar , E. Galstyan , I. Felner

Thermoelectric (TE) properties of a single nanowire (NW) are investigated in a microlab which allows the determination of the Seebeck coefficient S and the conductivity {\sigma}. A significiant influence of the magnetization of a 70 nm…

Mesoscale and Nanoscale Physics · Physics 2011-11-09 Rüdiger Mitdank , Martin Handwerg , Corinna Steinweg , William Töllner , Mihaela Daub , Kornelius Nielsch , Saskia F. Fischer

We report here the magneto-transport properties of the newly synthesized Heusler compound Cr2NiGa which crystallizes in a disordered cubic B2 structure belonging to Pm-3m space group. The sample is found to be paramagnetic down to 2 K with…

Strongly Correlated Electrons · Physics 2017-01-04 S. Pramanick , P. Dutta , S. Chatterjee , S. Giri , S. Majumdar

We report on specific heat and magnetotransport measurements performed on superconducting Cu$_{10\%}$TiSe$_2$ single crystals. We show that superconductivity persists in transport measurements up to magnetic fields $H_R$ well above the…

Superconductivity · Physics 2017-01-13 F. Levy-Bertrand , B. Michon , J. Marcus , C. Marcenat , J. Kačmarčík , T. Klein , H. Cercellier

In this paper we report on detailed temperature and magnetic field dependence of m agnetization of IV-VI semiconductor PbTe doped with mixed valence transition metal Cr$^{2+/3+}$. The material is studied solely by an integral…

Thermoelectric (TE) materials research plays a vital role in heat-to-electrical energy conversion and refrigeration applications. Bismuth-antimony (Bi-Sb) alloy is a promising material for thermoelectric cooling. Herein, a high figure of…

Materials Science · Physics 2019-10-16 Sheng Gao , John Gaskins , Xixiao Hu , Kathleen Tomko , Patrick Hopkins , S. Joseph Poon

We have grown single crystals of EuFe2As2 and investigated its electrical transport and thermodynamic properties. Electrical resistivity and specific heat measurements clearly establish the intrinsic nature of magnetic phase transitions at…

Superconductivity · Physics 2009-11-13 H. S. Jeevan , Z. Hossain , Deepa Kasinathan , H. Rosner , C. Geibel , P. Gegenwart

We measure the resistivity and magnetic susceptibility in the temperature range from 5 K to 600 K for the single crystals $A$Fe$_{2-y}$Se$_2$ ($A$ = K$_{0.8}$, Rb$_{0.8}$, Cs$_{0.8}$, Tl$_{0.5}$K$_{0.3}$ and Tl$_{0.4}$Rb$_{0.4}$). A sharp…

Superconductivity · Physics 2015-05-27 R. H. Liu , X. G. Luo , M. Zhang , A. F. Wang , J. J. Ying , X. F. Wang , Y. J. Yan , Z. J. Xiang , P. Cheng , G. J. Ye , Z. Y. Li , X. H. Chen

Low band gap thermoelectric materials suffer from bipolar effects at high temperatures, with increased electronic thermal conductivity and reduced Seebeck coefficient, leading to reduced power factor and low ZT figure of merit. In this work…

Materials Science · Physics 2022-03-14 Patrizio Graziosi , Zhen Li , Neophytos Neophytou

We investigate structural, magnetic and transport properties of CoRuTiSn equiatomic quaternary Heusler alloy. CoRuTiSn was synthesized by arc-melt technique. The room temperature powder XRD pattern was analyzed, and it was found that…

Materials Science · Physics 2025-04-24 Ravinder Kumar , Tufan Roy , Masafumi Shirai , Sachin Gupta

Thermoelectricity is a promising avenue for harvesting energy but large-scale applications are still hampered by the lack of highly-efficient low-cost materials. Recently, Fe$_2YZ$ Heusler compounds were predicted theoretically to be…

Materials Science · Physics 2019-11-21 Sébastien Lemal , Fabio Ricci , Daniel I. Bilc , Matthieu J. Verstraete , Philippe Ghosez

We have investigated the electrical resistivity, Seebeck coefficient and thermal conductivity of PdTe2 and 4% Cu intercalated PdTe2 compounds. Electrical resistivity for the compounds shows Bloch-Gruneisen type linear temperature (T)…

Strongly Correlated Electrons · Physics 2024-01-08 M. K. Hooda , C. S. Yadav

The switching of the magnetization configurations of giant magnetoresistance multilayer stacks not only changes the electric and thermal conductivities, but also the thermopower. We study the magnetotransport and the magneto-thermoelectric…