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The spin-filter material CrVTiAl is a promising candidate for producing highly spin-polarized currents at room temperature in a nonmagnetic architecture. Thin films of compensated-ferrimagnetic CrVTiAl have been grown and their electrical…

We report the structural, magnetic and transport properties of polycrystalline CrVTiAl alloy along with first principles calculations. It crystallizes in the LiMgPdSn type structure with lattice parameter 6.14 \AA\ at room temperature.…

Since the prediction of spin-gapless semiconducting behaviour in the Heusler compound Mn$_2$CoAl, evidence of spin-gapless behaviour in thin films has typically been inferred from magnetotransport measurements. The spin gapless state is…

Spin-gapless semiconductors (SGSs) that simultaneously host fully compensated ferrimagnetism are highly sought for energy-efficient and stray-field-free spintronic technologies, yet their realization in chemically disordered systems has…

The high-entropy alloys Al$_{x}$CrFeCoNi exist over a broad range of Al concentrations ($0 < x < 2$). With increasing Al content their structure is changed from the fcc to bcc phase. We investigate the effect of such structural changes on…

材料科学 · 物理学 2019-09-04 J. Kudrnovský , V. Drchal , F. Máca , I. Turek , S. Khmelevskyi

Single crystals of ZrAs1.4Se0.5 (PbFCl type structure) were grown by chemical vapour transport. While their thermodynamic and transport properties are typical for ordinary metals, the electrical resistivity exhibits a shallow minimum at low…

强关联电子 · 物理学 2015-06-25 M. Schmidt , T. Cichorek , R. Niewa , A. Schlechte , Y. Prots , F. Steglich , R. Kniep

The effect of disorder on a class of transition metal oxides described by a single orbital Hubbard model at half filling is investigated. The phases are characterized by the nature of the electronic and spin excitations. The frequency and…

强关联电子 · 物理学 2008-07-23 Kohjiro Kobayashi , Byounghak Lee , Nandini Trivedi

This manuscript presents a working model linking chemical disorder and transport properties in correlated-electron perovskites with high-entropy formulations and a framework to actively design them. We demonstrate this new learning in…

$\alpha$-RuCl$_3$, a well-known candidate material for Kitaev quantum spin liquid, is prone to stacking disorder due to the weak van der Waals bonding between the honeycomb layers. After a decade of intensive experimental and theoretical…

In this paper, we present the structural, electronic, magnetic and transport properties of a equiatomic quaternary alloy NbVTiAl. The absence of (111) and (200) peaks in X-ray diffraction (XRD) data confirms the A2-type structure.…

材料科学 · 物理学 2022-03-14 Deepika Rani , Jiban Kangsabanik , K. G. Suresh , Aftab Alam

The structural properties of the ROFeM (R=La, Nd; M=As, P) materials have been analyzed by means of electron diffraction, high-resolution transmission-electron microscopy (TEM) and in-situ cooling TEM observations. The experimental results…

超导电性 · 物理学 2009-11-13 C. Ma , L. J. Zeng , H. X. Yang , H. L Shi , R. C. Che , C. Y. Liang , Y. B. Qin , G. F. Chen , Z. A. Ren , J. Q. Li

In light of recent progress in the study of amorphous topological phases, we investigate the effects of structural disorder on the topological properties of a two-dimensional quantum spin Hall insulator modeled by the Bernevig-Hughes-Zhang…

无序系统与神经网络 · 物理学 2025-10-28 Ranadeep Roy , Yuan-Ming Lu

We report a combined theoretical and experimental study of a new topological semimetal CrFeVGa with an emphasis on the role of atomic disorder on the magnetoelectronic properties and its applications.CrFeVGa belongs to the quaternary…

强关联电子 · 物理学 2022-12-16 Jadupati Nag , P. C. Sreeparvathy , R. Venkatesh , P. D. Babu , K. G. Suresh , Aftab Alam

The efficient production of spin-polarized currents at room temperature is fundamental to the advancement of spintronics. Spin-filter materials --- semiconductors with unequal band gaps for each spin channel --- can generate spin-polarized…

材料科学 · 物理学 2019-03-13 Gregory M. Stephen , Ian McDonald , Brian Lejeune , Laura H. Lewis , Don Heiman

XX'YZ equiatomic quaternary Heusler alloys (EQHA's) containing Cr, Al, and select Group IVB elements ($\textit{M}$ = Ti, Zr, Hf) and Group VB elements ($\textit{N}$ = V, Nb, Ta) were studied using state-of-the-art density functional theory…

材料科学 · 物理学 2020-11-04 Gavin Winter , Matthew Matzelle , Christopher Lane , Arun Bansil

We present a detailed study of the electronic transport properties on a single crystalline specimen of the moderately disordered heavy fermion system URh$_2$Ge$_2$. For this material, we find glassy electronic transport in a single…

强关联电子 · 物理学 2009-11-10 S. Süllow , I. Maksimov , A. Otop , F. J. Litterst , A. Perucchi , L. Degiorgi , J. A. Mydosh

The skyrmion crystal is a periodic array of a swirling topological spin texture. Since it is regarded as an interference pattern by multiple helical spin density waves, the texture changes with the relative phases among the constituent…

强关联电子 · 物理学 2021-12-15 Satoru Hayami , Tsuyoshi Okubo , Yukitoshi Motome

Ab initio density functional theory (DFT) and DFT plus coherent potential approximation (DFT+CPA) are employed to reveal, respectively, the effect of in-plane strain and site-diagonal disorder on the electronic structure of cubic boron…

材料科学 · 物理学 2022-12-20 L. Craco , S. S. Carara , E. da Silva Barboza , T. A. S. Pereira , M. V. Milosevic

Magnetic skyrmions are topologically protected spin textures that are promising candidates for low-power spintronic memory and logic devices. Realizing skyrmion-based devices requires an understanding of how structural disorder affects…

We present a combined experimental and theoretical study on the quasi-one-dimensional organic conductor (TMTTF)$_2$PF$_6$, and elucidate the variation of its physical properties under pressure. We fully resolve the crystal structure by…

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