Magnetic field induced enhancement of resistance in polycrystalline ZrTe5

Behera, P. Suchismita; Bera, Sumit; Patidar, Manju Mishra; Singh, Durgesh; Mishra, A. K.; Krishnan, M.; Gangrade, Mohan; Deshpande, Uday; Venkatesh, R.; Ganesan, V.

doi:10.1063/1.5029024

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…The computed band gap is not only consistent with the abovementioned activation energy value but also is comparable with that in previous works. [ 11,26 ]…”

Section: Resultsmentioning

confidence: 99%

Phonon anharmonicity in bulk ZrTe₅

Wang

Xie

et al. 2021

J Raman Spectroscopy

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The study of phonon scattering processes is urgent for advancing the thermoelectric material with low thermal conductivity for commercial application. In this work, Raman scattering spectroscopy is utilized to quantify the temperature dependence of vibrational modes in ZrTe5 crystals, which enables the investigation on anharmonic contributions. We mainly focus on the temperature range from 80 up to 400 K due to noticeable surface oxidation at higher temperature. The phonon behaviors can be fully described by the model considering two mechanisms of the lattice thermal expansion effects and intrinsic anharmonicity. The four‐phonon processes are non‐negligible and even stronger than the three‐phonon processes at high temperature. The phonon lifetime is greatly reduced by the enhancement of phonon scattering, contributing to the low thermal conductivity in ZrTe5 single crystals.

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“…The computed band gap is not only consistent with the abovementioned activation energy value but also is comparable with that in previous works. [ 11,26 ]…”

Section: Resultsmentioning

confidence: 99%

Phonon anharmonicity in bulk ZrTe₅

Wang

Xie

et al. 2021

J Raman Spectroscopy

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“…Similarly, Bi 2 Se 3 hexagonal nanoflakes (cross section of ≈6 μm), nanoflower and octahedral agglomerated crystals of nearly ≈60 nm size have been synthesized via MW-assisted (commercial, 300 W) ST process using EG as a solvent. [213] A series of n-type Bi-doped PbTe such as Pb 1−x Bi x Te (x = 0.00, 0.01, 0.02, 0.03 and 0.04) alloys were synthesized by MW-HT method followed by hot-pressing (773 K, 20 MPa, 1 h). [214] The synthesized sample had a single cubic crystal structure, compact microstructures, and a uniform element distribution.…”

Section: Hydrothermal/solvothermal and Mw Liquid Phase Synthesis Of T...mentioning

confidence: 99%

“…Similarly, Bi 2 Se 3 hexagonal nanoflakes (cross section of ≈6 µm), nanoflower and octahedral agglomerated crystals of nearly ≈60 nm size have been synthesized via MW‐assisted (commercial, 300 W) ST process using EG as a solvent. [ 213 ]…”

Section: Traditional Versus Green Sustainable Te Materials Synthesis ...mentioning

confidence: 99%

Energy‐Saving Pathways for Thermoelectric Nanomaterial Synthesis: Hydrothermal/Solvothermal, Microwave‐Assisted, Solution‐Based, and Powder Processing

2022

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The pillars of Green Chemistry necessitate the development of new chemical methodologies and processes that can benefit chemical synthesis in terms of energy efficiency, conservation of resources, product selectivity, operational simplicity and, crucially, health, safety, and environmental impact. Implementation of green principles whenever possible can spur the growth of benign scientific technologies by considering environmental, economical, and societal sustainability in parallel. These principles seem especially important in the context of the manufacture of materials for sustainable energy and environmental applications. In this review, the production of energy conversion materials is taken as an exemplar, by examining the recent growth in the energy-efficient synthesis of thermoelectric nanomaterials for use in devices for thermal energy harvesting. Specifically, "soft chemistry" techniques such as solution-based, solvothermal, microwave-assisted, and mechanochemical (ball-milling) methods as viable and sustainable alternatives to processes performed at high temperature and/or pressure are focused. How some of these new approaches are also considered to thermoelectric materials fabrication can influence the properties and performance of the nanomaterials so-produced and the prospects of developing such techniques further.

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Transport and thermal properties of polycrystalline ZrTe5

Behera

Patidar

Bera

et al. 2020

Journal of Applied Physics

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Studies on thermal and transport properties of topologically interesting polycrystalline ZrTe5 down to 2 K and magnetic fields up to 14 T are reported here. Attempts have been made to explain the metal insulator transition-like features seen in magnetic fields, a behavior characteristic of ZrTe5. The maximum in relative magnetoresistance (MRmax) for a particular magnetic field with respect to the peak temperature, i.e., Tp(B), shows an activated behavior reminiscent of polaronic conduction seen upon chemical substitution like Hf in Zr. Magnetoresistance is well described by a small polaron hopping transport model in a systematic way for various fields. The estimated activation energies are in line with infrared spectroscopy as well as hole dominated thermopower supported by heat capacity measurements. The essential features of the analysis include square root dependence of magnetoresistance with the magnetic field possibly due to the weak antilocalization effect as well as T3/2 dependence on mobility, extracted from a simplified two-band model fit in magnetoresistance curves.

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Magnetic field induced enhancement of resistance in polycrystalline ZrTe5

Cited by 3 publications

References 11 publications

Phonon anharmonicity in bulk ZrTe₅

Phonon anharmonicity in bulk ZrTe₅

Energy‐Saving Pathways for Thermoelectric Nanomaterial Synthesis: Hydrothermal/Solvothermal, Microwave‐Assisted, Solution‐Based, and Powder Processing

Transport and thermal properties of polycrystalline ZrTe5

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Magnetic field induced enhancement of resistance in polycrystalline ZrTe5

Cited by 3 publications

References 11 publications

Phonon anharmonicity in bulk ZrTe5

Phonon anharmonicity in bulk ZrTe5

Energy‐Saving Pathways for Thermoelectric Nanomaterial Synthesis: Hydrothermal/Solvothermal, Microwave‐Assisted, Solution‐Based, and Powder Processing

Transport and thermal properties of polycrystalline ZrTe5

Contact Info

Product

Resources

About

Phonon anharmonicity in bulk ZrTe₅

Phonon anharmonicity in bulk ZrTe₅