TY - GEN
T1 - Synthesis and magnetic characterization of la2-xsrxcuo4 nanoparticles
AU - Baqiya, Malik Anjelh
AU - Putra, Putu Eka Dharma
AU - Irfanita, Resky
AU - Fitriana,
AU - Darminto,
AU - Kawamata, Takayuki
AU - Noji, Takashi
AU - Sato, Hidetaka
AU - Kato, Masatsune
N1 - Funding Information:
This research was partly supported by the grant project “Penelitian Dasar Unggulan Perguruan Tinggi (PDUPT) Institut Teknologi Sepuluh Nopember (ITS) 2017–2018 and 2020” from Ministry of Research, Technology and Higher Education of the Republic of Indonesia.
Publisher Copyright:
© 2020 Trans Tech Publications Ltd, Switzerland.
PY - 2020
Y1 - 2020
N2 - Non-doped and strontium-doped lanthanum cuprates (La2CuO4 (LCO) and La1.85Sr0.15CuO4 (LSCO15)) in nano-sized particles were synthesized by the chemically dissolved technique employing HNO3 as the dissolving agent. The structural and magnetic properties were investigated by using an x-ray diffraction (XRD) apparatus and a superconducting quantum interference device (SQUID) magnetometer, respectively. The XRD patterns of LCO and LSCO15 show the formation of the single phase without impurities after the calcinations in air at 1100oC for 15 h and the post-annealing in oxygen at 800oC for 24 h. The average crystallite sizes of LCO and LSCO15 samples were in a range of around 100 nm confirming nano-sized particles. The LCO and LSCO15 nanoparticles exhibit superconductivity at the superconducting (SC) transition temperature, Tc, of 23 K and 38 K, respectively. The magnetization curve measurements have revealed that both samples show the appearance of ferro-and dia-magnetic behavior at room temperature and the appearance of superconductivity at low temperatures. This result may indicate the coexistence of ferromagnetism and superconductivity below Tc in the nano-sized cuprates.
AB - Non-doped and strontium-doped lanthanum cuprates (La2CuO4 (LCO) and La1.85Sr0.15CuO4 (LSCO15)) in nano-sized particles were synthesized by the chemically dissolved technique employing HNO3 as the dissolving agent. The structural and magnetic properties were investigated by using an x-ray diffraction (XRD) apparatus and a superconducting quantum interference device (SQUID) magnetometer, respectively. The XRD patterns of LCO and LSCO15 show the formation of the single phase without impurities after the calcinations in air at 1100oC for 15 h and the post-annealing in oxygen at 800oC for 24 h. The average crystallite sizes of LCO and LSCO15 samples were in a range of around 100 nm confirming nano-sized particles. The LCO and LSCO15 nanoparticles exhibit superconductivity at the superconducting (SC) transition temperature, Tc, of 23 K and 38 K, respectively. The magnetization curve measurements have revealed that both samples show the appearance of ferro-and dia-magnetic behavior at room temperature and the appearance of superconductivity at low temperatures. This result may indicate the coexistence of ferromagnetism and superconductivity below Tc in the nano-sized cuprates.
KW - Chemically dissolved technique
KW - Ferromagnetism
KW - La2-xSrxCuO4
KW - Magnetic properties
KW - Superconductivity
UR - http://www.scopus.com/inward/record.url?scp=85090801694&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85090801694&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.855.58
DO - 10.4028/www.scientific.net/KEM.855.58
M3 - Conference contribution
AN - SCOPUS:85090801694
SN - 9783035717044
T3 - Key Engineering Materials
SP - 58
EP - 63
BT - Magnetism and its Application
A2 - Purnama, Budi
A2 - Darminto, null
A2 - Risdiana, null
PB - Trans Tech Publications Ltd
T2 - International Conference on Magnetism and Its Application, ICMIA 2019
Y2 - 20 November 2019 through 21 November 2019
ER -