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Related papers: Half Heusler Alloys for Efficient Thermoelectric P…

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We explore the structural, electronic, mechanical and thermoelectric properties of a new half Heusler compound, HfPtPb which is all metallic heavy element and has been recently been proposed to be stable [Nature Chem 7 (2015) 308]. In the…

Materials Science · Physics 2017-05-12 Kulwinder Kaur , D. P. Rai , R. K. Thapa , Sunita Srivastava

Low dimensional materials provide the possibility of improved thermoelectric performance due to the additional length scale degree of freedom for engineering their electronic and thermal properties. As a result of suppressed phonon…

Mesoscale and Nanoscale Physics · Physics 2010-06-23 Neophytos Neophytou , Martin Wagner , Hans Kosina , Siegfried Selberherr

The design of uranium-based thermoelectric materials presents a novel and intriguing strategy for directly converting nuclear heat into electrical power. Using high-level first-principles approach combined with accurate solution of…

Materials Science · Physics 2019-12-30 Z. Z. Zhou , D. D. Fan , H. J. Liu , J. Liu

Few-layer black phosphorus has recently emerged as a promising candidate for novel electronic and optoelectronic device. Here we demonstrate by first-principles calculations and Boltzmann theory that, black phosphorus could also have…

Materials Science · Physics 2016-06-08 J. Zhang , H. J. Liu , L. Cheng , J. Wei , J. H. Liang , D. D. Fan , P. H. Jiang , L. Sun , J. Shi

Hf and Zr nitrides are promising compounds for many technologically important areas, including high temperature structural applications, quantum computing and solar/optical applications. This article reports on a comprehensive…

Materials Science · Physics 2024-12-10 Jonathan Li , Derick Ober , Anton Van der Ven

We present first-principles density functional calculations of the electronic structure, magnetism, and structural stability of 378 $\textit{XYZ}$ half-Heusler compounds (with $X=$ Cr, Mn, Fe, Co, Ni, Ru, Rh, $Y=$ Ti, V, Cr, Mn, Fe, Ni,…

Thin-film periodically poled lithium niobate (TF-PPLN) devices have recently gained prominence for efficient wavelength conversion processes in both classical and quantum applications. However, the patterning and poling of TF-PPLN devices…

High entropy alloys (HEAs) are the new class of materials with an attractive combination of tunable mechanical and physicochemical properties. They crystallize mainly in cubic structures, however, for practical applications, HEAs with…

Ternary intermetallic half-Heusler (HH) compounds (XYZ) with 18 valence electron count viz. ZrCoSb, ZrNiSn, and ZrPdSn, have revealed promising thermoelectric properties. Exemplarily, it has been experimentally observed that a slight change…

Materials Science · Physics 2021-11-02 Parul R. Raghuvanshi , Dipanwita Bhattacharjee , Amrita Bhattacharya

The phase stabilities and ordering tendencies in the quaternary full-Heusler alloys NiCoMnAl and NiCoMnGa have been investigated by in-situ neutron diffraction, calorimetry and magnetization measurements. NiCoMnGa was found to adopt the…

Strongly Correlated Electrons · Physics 2017-10-17 Pascal Neibecker , Markus E. Gruner , Xiao Xu , Ryosuke Kainuma , Winfried Petry , Rossitza Pentcheva , Michael Leitner

We present a comprehensive study aimed at elucidating the complex magnetic correlations in Co$_2$TiSi$_{0.5}$Al$_{0.5}$ Heusler alloy having the partial B2-type structure amid L2$_1$ cubic main phase. The thermo-magnetization measurements…

Strongly Correlated Electrons · Physics 2024-08-26 Priyanka Yadav , Brajesh K. Mani , Rajendra S. Dhaka

The efficiency of energy conversion in thermoelectric generators (TEGs) is directly proportional to electrical conductivity and Seebeck coefficient while inversely to thermal conductivity. The challenge is to optimize these interdependent…

We study the electronic and magnetic properties of the quaternary AuMnSn$_{1-x}$Sb$_{x}$ Heusler alloys using first principles calculations. We determine their magnetic phase diagram and we show that they present a phase transition from a…

Materials Science · Physics 2015-05-13 K. Ozdogan , I. Galanakis , E. Sasioglu

We study the interatomic exchange interactions and Curie temperatures in half-metallic semi Heusler compounds NiCrZ (Z=P, Se, Te) and NiVAs. The study is performed within the framework of density functional theory. The calculation of…

Materials Science · Physics 2015-06-25 E. Sasioglu , L. M. Sandratskii , P. Bruno

We report the structural, magnetic, and magnetocaloric properties of Co$_2$Cr$_{1-x}$Ti$_x$Al ($x=$ 0--0.5) Heusler alloys for spintronic and magnetic refrigerator applications. Room temperature X-ray diffraction and neutron diffraction…

Materials Science · Physics 2019-11-06 Priyanka Nehla , Yousef Kareri , Guru Dutt Gupt , James Hester , P. D. Babu , Clemens Ulrich , R. S. Dhaka

XYZ half-Heusler phases are often described as a XZ rock salt sublattice with an interstitial Y atom. However, transport across a solid solution between rock salt and half-Heusler structures has not previously been studied. In this paper,…

Materials Science · Physics 2024-08-27 Maria Wróblewska , Eric S. Toberer , Kamil M. Ciesielski

The pursuit of efficient spin-polarization in quaternary Heusler alloys with the general formula $XX'YZ$ (where X, $X'$, and Y are transition metals and Z is a p-block element), has been a subject of significant scientific interest. While…

We study the effect of the non-magnetic 3\textit{d} atoms on the magnetic properties of the half-metallic (HM) semi-Heusler alloys Co$_{1-x}$Cu$_{x}$MnSb and Ni$_{1-x}$Cu$_{x}$MnSb ($0 \leq x \leq 1$) using first-principles calculations. We…

Materials Science · Physics 2015-05-13 I. Galanakis , E. Sasioglu , K. Ozdogan

The discovery of Heusler alloys has revolutionized the research field of intermetallics due to the ease with which one can derive potential candidates for multifunctional applications. During recent years, many half Heusler alloys have been…

Materials Science · Physics 2016-05-25 S. Krishnaveni , M. Sundareswari , P. C. Deshmukh , S. R. Valluri , Ken Roberts

We report the magnetic, magnetocaloric, and magnetotransport properties of the semi-Heusler alloy Cu0.85Ni0.15MnSb, which exhibits coexistence of antiferromagnetic (AFM) and ferromagnetic (FM) phases. A broad magnetic phase transition is…

Strongly Correlated Electrons · Physics 2016-03-30 Madhumita Halder , K. G. Suresh , M. D. Mukadam , S. M. Yusuf