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Half-Heusler (HH) compounds have shown high Figure of merits up to 1.5. The key to these high thermoelectric efficiencies is an intrinsic phase separation, which occurs in multicomponent Half-Heusler compounds and leads to an significantly…

材料科学 · 物理学 2015-02-09 Julia Krez , Benjamin Balke , Claudia Felser , Wilfried Hermes , Markus Schwind

Plasmonic near-field transducers (NFTs) play a key role in administering nanoscale heating for a number of applications ranging from medical devices to next generation data processing technology. We present a novel multi-scale approach,…

Today, high-performance thermoelectric and thermomagnetic materials operating in the low-temperature regime, particularly below the boiling point of liquid nitrogen remain scarce. Most thermomagnetic materials reported to date exhibit a…

材料科学 · 物理学 2025-07-29 Antu Laha , Sarah Paone , Niraj Aryal , Qiang Li

We have investigated the crystal and magnetic structure of Mn${}_{2}$PtPd alloy using powder x-ray and neutron diffraction experiments. This compound is believed to belong to the Heusler family having crystal symmetry…

材料科学 · 物理学 2020-03-27 Vivek Kumar , Manfred Reehuis , Andreas Hoser , Peter Adler , Claudia Felser

A combination of theoretical calculation and the experimental synthesis to explore the new ternary compound is demonstrated in the Sr-Pt-Bi system. Since Pt-Bi is considered as a new critical charge-transfer pair for superconductivity, it…

材料科学 · 物理学 2017-12-25 Xin Gui , Xin Zhao , Zuzanna Sobczak , Cai-Zhuang Wang , Tomasz Klimczuk , Kai-Ming Ho , Weiwei Xie

Metal mixed polymers are a cheap and effective way to produce flexible metals and superconductors. As part of an on-going effort to learn how to tune the properties of these systems with ion implantation, we present a study of the…

材料科学 · 物理学 2009-06-15 Andrew P. Stephenson , Ujjual Divakar , Adam P. Micolich , Paul Meredith , Ben J. Powell

Here we present bulk property measurements and electronic structure calculations for PuFeAsO, an actinide analogue of the iron-based rare-earth superconductors RFeAsO. Magnetic susceptibility and heat capacity data suggest the occurrence of…

The thermoelectric power (TEP) measurements have been carried out to investigate the changes in the electronic structure associated with the intermartensitic and martensitic transitions in Ni$_{2+x}$Mn$_{1-x}$Ga (0 $\le$ x $\le$ 0.19). The…

Neutron and x-ray diffraction experiments were performed on the ternary intermetallic compound YbNiSn, formerly categorized as a ferromagnetic Kondo compound. At zero field, an increase in scattering intensity was observed on top of allowed…

强关联电子 · 物理学 2023-08-16 Hung-Cheng Wu , Ai Nakamura , Daisuke Okuyama , Kazuhiro Nawa , Dai Aoki , Taku J Sato

We have used single crystal X-ray diffraction methods to establish the crystal structures of a compound in the Pd-Mn-Si system and in the Pd-Mn-Ge system. The title compounds have structures related to the Fe$_2$P structure type and are…

材料科学 · 物理学 2007-06-16 Srinivasa Thimmaiah , Claudia Felser , Ram Seshadri

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…

The influence of antisite disorder occupancies on the magnetic properties of the half-metallic Co$_2$MnSi compound was studied by experimental techniques and first-principles calculations. The neutron diffraction studies show almost…

材料科学 · 物理学 2019-10-18 S. J. Ahmed , C. Boyer , M. Niewczas

We studied the electronic structure of a layered antiferromagnetic metal, EuSnP, in the paramagnetic and in the antiferromagnetic phase using angle resolved photoemission spectroscopy (ARPES) alongside density functional theory (DFT) based…

We report the design, synthesis, crystal structure, and physical properties of a layered intergrowth compound, Eu$_2$CuMn$_2$P$_3$. The structure of Eu$_2$CuMn$_2$P$_3$ features an alternating arrangement of hexagonal EuCuP block layers and…

材料科学 · 物理学 2025-06-03 Xiyu Chen , Ziwen Wang , Wuzhang Yang , Jia-Yi Lu , Zhiyu Zhou , Zhi Ren , Guang-Han Cao , Shuai Dong , Zhi-Cheng Wang

Heat capacity experiments, crystal structure determination and transmission electron microscopy have been carried out on U3Cu3Sn4 single-crystals. U3Cu3Sn4 was confirmed to be a heavy-fermion antiferromagnet (TN=13(1) K) with a low…

强关联电子 · 物理学 2009-10-31 L. Shlyk , P. Estrela , J. C. Waerenborgh , L. E. De Long , A. de Visser , D. P. Rojas , F. Gandra , M. Almeida

The first-principles full-potential linearized augmented plane-wave method based on density functional theory is used to investigate electronic structure and magnetic properties of hypothetical binary compounds of I$^{A}$ subgroup elements…

材料科学 · 物理学 2008-09-14 Krzysztof Zberecki , Leszek Adamowicz , Michał Wierzbicki

Previous researches only reported very small interfacial thermal resistances at room temperature due to limitations in sample combinations and methods. Taking cognizance of the importance of mismatched phonon structures, we report values up…

材料科学 · 物理学 2019-04-30 Yan Yin , Busheng Wang , Jin Chen , Jiyong Yao , Wenlong Wang , Li Wang , Huaizhou Zhao , Wuming Liu , Xuedong Bai

We observed superconductivity ($T_{c}$ $\simeq$2-3 K) in Li$_{x}$RhB$_{y}$ intermetallics wherein $x$ and $y$ vary over a wide compositional range. The crystal structure consists of cubic unit-cell ($a$ $\simeq$ 12.1 \AA ) with…

超导电性 · 物理学 2015-05-12 H. Takeya , M. ElMassalami , H. S. Amorim , H. Fujii , T. Mochiku , Y. Takano

We report low-temperature and high-pressure measurements of the electrical resistivity \rho(T) of the antiferromagnetic compound NiS_2 in its high-pressure metallic state. The form of \rho(T) suggests that metallic antiferromagnetism in…

强关联电子 · 物理学 2015-06-25 P. G. Niklowitz , M. J. Steiner , G. G. Lonzarich , D. Braithwaite , G. Knebel , J. Flouquet , J. A. Wilson

High-pressure electrical resistivity, r(T), measurements on intermetallic Pr(Co, Ni, Pt)2B2C compounds were performed down to 2K. At room pressure the r(T) in a-b direction curves for the non superconducting Pr(Co, Ni)2B2C compounds exhibit…

超导电性 · 物理学 2015-05-20 R Falconi , A Durán , M Núñez-Regueiro , R Escudero