Band Jahn–Teller effects in Rh2TMSn full Heusler compounds

Zhang, Wenxu; Yu, Tao; Huang, Zhishuo; Zhang, Wanli

doi:10.1016/j.jallcom.2014.08.146

Cited by 16 publications

(3 citation statements)

References 13 publications

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“…For a martensitic system, the DOS at Fermi level in parent phase has a relative high value compared to that of martensite phase. The high DOS value in the parent phase is responsible for the instability [58]. During the MT, high DOS value is reduced by electronic redistribution and a reduction of instability is achieved.…”

Section: Fe Content (%)mentioning

confidence: 99%

Electronic behaviors during martensitic transformations in all-d-metal Heusler alloys

Zeng

Shen

Zhang

et al. 2019

J. Phys.: Condens. Matter

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For solid-state phase transitions, the alterations of electronic structure driven by the band Jahn–Teller effect would play an essential role in the structural phase transitions and in switching the resistivity or magnetization states for potential applications. However, this evolution of the electronic structure and electronic transport during the martensitic transformations (MT) still lacks comprehensive investigations, especially in magnetic martensitic materials studied in recent years. In this work, we report a study on the electronic behaviors during the MT in a kind of all-d-metal Ni50−xFexMn35Ti15 Heusler magnetic shape memory alloys, by combining x-ray diffraction, calorimetric, magnetic, transport measurements and calculations. Based on the magnetic MTs, the system shows large magnetocaloric effect and magnetoresistance. In the whole temperature range, the system is dominated by hole carriers in both parent and martensite phases. A sharp increase in carrier concentration is observed across the transformations. Meanwhile, the mobility of holes is depressed due to the lattice distortion. A picture of the characteristics of MTs has been proposed for general understanding and clues of the potential spintronic applications based on the magnetostructural phase transitions.

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Section: Fe Content (%)mentioning

confidence: 99%

Electronic behaviors during martensitic transformations in all-d-metal Heusler alloys

Zeng

Shen

Zhang

et al. 2019

J. Phys.: Condens. Matter

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“…Since the prediction of HM ferromagnetism of Heusler alloy NiMnSb by ab intito calculations in 1983 [2], half metallic ferromagnetism (HMF) has attracted great interest [3,4,5,6]. And the half metallic ferromagnetic Heusler alloys are good candidates for the application of spintronic devices, as these alloys often have high spin polarization, high Curie temperature compatible lattice structure.…”

Section: Introductionmentioning

confidence: 99%

First-principle study on some new spin-gapless semiconductors: The Zr-based quaternary Heusler alloys

Gao

Xie

et al. 2015

Superlattices and Microstructures

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a b s t r a c tEmploying first-principle calculations, we have investigated electronic and magnetic properties of the Zr-based quaternary Heusler alloys: ZrCoVIn, ZrFeVGe, ZrCoFeP, ZrCoCrBe and ZrFeCrZ (Z = In and Ga). Our calculation results show that all the alloys are (or nearly) spin-gapless semiconductors. The Slater-Pauling behaviours of these alloys are discussed as well. The cohesion energy and formation energy of these alloys have also been discussed, and the results indicate the studied alloys are stable.

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“…The ab initio band structure calculations thus predict a structural distortion from cubic to tetragonal crystal system, which is attributed to the band Jahn-Teller effect. 44 However, the distortion seems largely hampered by kinetics as discussed above.…”

Section: Electronic Structurementioning

confidence: 99%

Nano-scale new Heusler compounds NiRh₂Sb and CuRh₂Sb: synthesis, characterization, and application as electrocatalysts

Fecher¹,

Subakti²,

Lubk³

et al. 2023

J. Mater. Chem. A

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Band Jahn–Teller effects in Rh2TMSn full Heusler compounds

Cited by 16 publications

References 13 publications

Electronic behaviors during martensitic transformations in all-d-metal Heusler alloys

Electronic behaviors during martensitic transformations in all-d-metal Heusler alloys

First-principle study on some new spin-gapless semiconductors: The Zr-based quaternary Heusler alloys

Nano-scale new Heusler compounds NiRh₂Sb and CuRh₂Sb: synthesis, characterization, and application as electrocatalysts

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Band Jahn–Teller effects in Rh2TMSn full Heusler compounds

Cited by 16 publications

References 13 publications

Electronic behaviors during martensitic transformations in all-d-metal Heusler alloys

Electronic behaviors during martensitic transformations in all-d-metal Heusler alloys

First-principle study on some new spin-gapless semiconductors: The Zr-based quaternary Heusler alloys

Nano-scale new Heusler compounds NiRh2Sb and CuRh2Sb: synthesis, characterization, and application as electrocatalysts

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Nano-scale new Heusler compounds NiRh₂Sb and CuRh₂Sb: synthesis, characterization, and application as electrocatalysts