Published 2021 | Version v1
Book Metadata-only

Magnetic properties of BiFeO3 nanopowders heat-treated at different temperatures

Creators

  • 1. Inst. Fiziki im. Kh.I. Amirkhanova DFITs RAN, Makhachkala (Russian Federation)
  • 2. Dagestanskij Gosudarstvennyj Univ., Makhachkala (Russian Federation)
  • 3. Ob''edinennyj Inst. Vysokikh Temperatur, Moscow (Russian Federation)

Description

The magnetic properties of BiFeO3 nanopowders heat-treated at temperatures of 450 °C, 550 °C, 600 °C, and 650 °C have been investigated. The original nanopowders were synthesized by the sol-gel method. It was found that with an increase in the crystallite size (D) by ≃ 1.9 times, the saturation magnetization (Ms) and remanent magnetization (Mr) decrease ≃ 8.1 and 4.1 times, respectively, and the coercive force (Hc), on the contrary, increases ≃ 1.8 times. The Ms value for the sample heat treated at 650°C and with D ≃ 74.8 nm decreased to ≃ 0.23 emu/g

Abstract (Russian)

Исследованы магнитные свойства нанопорошков составов BiFeO3, термообработанных при температурах 450 °C, 550 °C, 600 °C и 650 °C. Исходные нанопорошки синтезированы золь-гель методом. Установлено, что с увеличением размера кристаллитов (D) в ≃ 1.9 раза величины намагниченности насыщения (Ms) и остаточной намагниченности (Mr) уменьшается ≃ 8.1 и 4.1 раза соответственно, а коэрцитивная сила (Hc), наоборот, увеличивается ≃ 1.8 раза. Значение Ms для образца, термообработанного при 650°C с D ≃ 74.8 нм, уменьшилось до ≃ 0.23 emu/g
Part of:
VII International conference «Laser, plasma research and technologies» LaPlaz-2021. Collection of scientific papers. Part 1

Additional details

Additional titles

Original title (Russian)
Магнитные свойства нанопорошков BiFeO₃, термообработанных при различных температурах

Publishing Information

Publisher
NIYaU MIFI
Imprint Place
Moscow (Russian Federation)
ISBN
978-5-7262-2767-2
Imprint Title
VII International conference #Left-Pointing Double Angle Quotation Mark#Laser, plasma research and technologies#Right-Pointing Double Angle Quotation Mark# LaPlaz-2021. Collection of scientific papers. Part 1
Imprint Pagination
460 p.
Journal Page Range
p. 163-164

Conference

Title
VII International conference #Left-Pointing Double Angle Quotation Mark#Laser, plasma research and technologies#Right-Pointing Double Angle Quotation Mark# LaPlaz-2021
Original Conference Title
VII Mezhdunarodnaya konferentsiya «Lazernye, plazmennye issledovaniya i tekhnologii» LaPlaz-2021
Dates
23-26 Mar 2021
Place
Moscow (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
55088067
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BISMUTH COMPOUNDS; COMPARATIVE EVALUATIONS; FERRITES; FERROMAGNETIC MATERIALS; HEAT TREATMENTS; HYSTERESIS; MAGNETIC PROPERTIES; NANOCRYSTALS; NANOPOWDERS; SIZE; SOL-GEL PROCESS; TEMPERATURE RANGE 0400-1000 K
Descriptors DEC
CRYSTALS; EVALUATION; FERRIMAGNETIC MATERIALS; IRON COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; NANOMATERIALS; NANOSTRUCTURES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POWDERS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
1 ref., 1 fig., 1 tab. Imprint:VII Mezhdunarodnaya konferentsiya #Left-Pointing Double Angle Quotation Mark#Lazernye, plazmennye issledovaniya i tekhnologii#Right-Pointing Double Angle Quotation Mark# LaPlaz-2021. Sbornik nauchnykh trudov. Chast' 1