Published October 2021 | Version v1
Journal article Metadata-only

Low field magnetic interactions in the transition metals doped CuS quantum dots

Creators

  • 1. Department of Physics, Amity University Patna Campus, Patna, Bihar 801503 (India)
  • 2. Department of Physics, Indian Institute of Technology, Bihta, Bihar 801106 (India)
  • 3. Department of Applied Physics, Amity Institute of Applied Sciences, Amity University, Noida 201313, Uttar Pradesh (India)
  • 4. Department of Physics, National Institute of Technology, Patna, Bihar 800005 (India)

Description

Highlights: • Successful synthesis of PVP capped doped CuS quantum dots. • A marked increase in the band gap of the quantum dots. • Low field magnetic interactions at room temperature. Polyvinlypyrrolidone (PVP) capped and magnetic transition metals (TM = Fe, Co and Cr) doped CuS quantum dots (Cu1-xTMxS; x = 0.02 & 0.04) were synthesized by low entropy facile chemical co-precipitation method. The structural, optical and magnetic characterizations of the synthesized QDs were done by using X-ray diffraction (XRD) technique, UV–Vis-NIR absorption spectroscopy, photoluminescence (PL) spectroscopy and superconducting quantum interference device (SQUID) respectively. The low field non-linearity and the presence of coercivity in the M−H loops indicate the presence low field magnetic (spin–spin) interactions between the doped cations.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.cplett.2021.138902

Additional details

Identifiers

DOI
10.1016/j.cplett.2021.138902;
PII
S0009261421005856;

Publishing Information

Journal Title
Chemical Physics Letters
Journal Volume
780
Journal Page Range
vp.
ISSN
0009-2614
CODEN
CHPLBC

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54027324
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSORPTION SPECTROSCOPY; CATIONS; COERCIVE FORCE; COPPER; COPPER SULFIDES; COPRECIPITATION; DOPED MATERIALS; ENTROPY; MAGNETIC FIELDS; MAGNETIC SEMICONDUCTORS; PHOTOLUMINESCENCE; PVP; QUANTUM DOTS; SPIN; VACANCIES; X-RAY DIFFRACTION
Descriptors DEC
AMIDES; ANGULAR MOMENTUM; AZOLES; BLOOD SUBSTITUTES; CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIFFRACTION; DRUGS; ELEMENTS; EMISSION; HEMATOLOGIC AGENTS; HETEROCYCLIC COMPOUNDS; IONS; LACTAMS; LUMINESCENCE; MATERIALS; METALS; NANOSTRUCTURES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC POLYMERS; PARTICLE PROPERTIES; PHOTON EMISSION; PHYSICAL PROPERTIES; POINT DEFECTS; POLYMERS; POLYVINYLS; PRECIPITATION; PYRROLES; PYRROLIDONES; SCATTERING; SEMICONDUCTOR MATERIALS; SEPARATION PROCESSES; SPECTROSCOPY; SULFIDES; SULFUR COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2021 Elsevier B.V. All rights reserved.