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Distinctive exchange bias and unusual memory effects in magnetically compensated Pr0.75Gd0.25ScGe
- Source :
- Journal of Materials Chemistry C. 9:181-188
- Publication Year :
- 2021
- Publisher :
- Royal Society of Chemistry (RSC), 2021.
-
Abstract
- Tuning the chemistry of materials often leads to discoveries of interesting phenomena that expand basic science and support practical applications. Here we show how different spin–orbit coupling in light and heavy lanthanides can be exploited to create complex magnetic ground states and thereby unusual spontaneous exchange bias (SEB), conventional exchange bias (CEB), and magnetic memory effects in almost ideally magnetically compensated Pr0.75Gd0.25ScGe, which is a representative of the PrScGe–GdScGe solid solution. We report the synthesis and detailed characterization of Pr0.75Gd0.25ScGe by X-ray powder diffraction, scanning electron microscopy, and magnetization measurements in magnetic fields up to 140 kOe. Partial substitution of a light lanthanide, Pr, with a heavy lanthanide, Gd, results in a complex magnetic ground state, which includes large spontaneous and conventional exchange biases reaching magnitudes of ∼1.7 kOe and ∼3.5 kOe, respectively, at T = 2 K, as well as shape dependent magnetic compensation and bias phenomena occurring in small external fields.
- Subjects :
- Lanthanide
Materials science
Condensed matter physics
02 engineering and technology
General Chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Characterization (materials science)
Magnetic field
Magnetization
Coupling (physics)
Exchange bias
0103 physical sciences
Materials Chemistry
010306 general physics
0210 nano-technology
Ground state
Powder diffraction
Subjects
Details
- ISSN :
- 20507534 and 20507526
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Chemistry C
- Accession number :
- edsair.doi...........d6d7c178fe9099a1fca0d2e34ac510ca