Evolution of complex magnetic phases and metal-insulator transition through Nb substitution in

R Shukla, RS Dhaka - Physical Review B, 2023 - APS
We report the evolution of structural, magnetic, transport, and electronic properties of bulk
polycrystalline La 0.5 Sr 0.5 Co 1− x Nb x O 3 (x= 0.025–0.25) samples. The Rietveld …

Observation of Anisotropic Thermal Expansion and the Jahn–Teller Effect in Double Perovskites Sr2–xLaxCoNbO6 Using Neutron Diffraction

A Kumar, A Jain, SM Yusuf… - The Journal of Physical …, 2022 - ACS Publications
We use temperature dependent neutron powder diffraction (NPD) to investigate the
structural changes and magnetic interactions in double perovskite Sr2–x La x CoNbO6 (x …

Correlation between the exchange bias effect and antisite disorder in

A Kumar, B Schwarz, RS Dhaka - Physical Review B, 2024 - APS
We unravel the effect of La substitution and hence antisite disorders on the exchange bias
(EB) mechanism in Sr 2− x La x CoNbO 6 (x= 0, 0.2) double-perovskite samples using the …

Dielectric behavior and impedance spectroscopy of Niobium substituted Lanthanum based orthovanadates at high temperatures

A Kumar, VN Thakur, A Kumar, V Singh, A Dhaka… - Ceramics …, 2024 - Elsevier
We present the detailed study of the temperature dependent dielectric properties,
impedance spectroscopy and electrical conductivity of LaV 1− x Nb x O 4 (x= 0–1) samples …

Investigating the temperature and frequency dependence of dielectric response using AC impedance spectroscopy on SnO2

S Dhiman, R Meena, N Manyani, SK Tripathi - Surfaces and Interfaces, 2023 - Elsevier
In this investigation, we explored tin oxide's dielectric properties and impedance
spectroscopy, focusing on its temperature dependence across a frequency range of 20 Hz to …

Structural, vibrational and electronic properties of Nb substituted orthovanadates LaV1− xNbxO4

A Kumar, A Sharma, M Sharma, V Singh… - Journal of Alloys and …, 2023 - Elsevier
We investigate the structural, vibrational, morphological, and electronic properties of Nb
substituted orthovanadate LaV 1− x Nb x O 4 samples prepared by the solid-state reaction …

High temperature dielectric and impedance spectroscopy study of LaCo0. 7Nb0. 3O3

VN Thakur, A Kumar, A Kaushik, GD Gupt… - Materials Research …, 2023 - Elsevier
We report the high temperature dielectric and ac impedance spectroscopy investigation of
Nb substituted LaCo 0.7 Nb 0.3 O 3 polycrystalline sample. The maximum dielectric constant …

[HTML][HTML] Effect of the growth orientation on the physical properties of Sr2CoNbO6 thin films

A Kumar, R Meena, M Miryala, K Ueno… - Journal of Vacuum …, 2023 - pubs.aip.org
We study the effect of the growth orientation on the structural, electronic, and hence transport
properties of Sr 2 CoNbO 6 thin films grown on the orthorhombic NGO (100) and cubic MgO …

Investigation of lattice dynamics, magnetism, and electronic transport in

R Shukla, C Ulrich, RS Dhaka - Physical Review B, 2022 - APS
We investigate lattice dynamics and spin-phonon coupling as well as the magnetic and
electronic properties of β-Na 0.33 V 2 O 5 using temperature-dependent Raman scattering …

Multiple magnetic interactions and large inverse magnetocaloric effect in TbSi and

A Kumar, P Singh, A Doyle, DL Schlagel, Y Mudryk - Physical Review B, 2024 - APS
We present a comprehensive investigation of the electronic structure, magnetization, specific
heat, and crystallography of TbSi (FeB structure type) and TbSi 0.6 Ge 0.4 (CrB structure …