Tuning spin reorientation in Er1-xYxFeO3 single crystal family

Yuan, Nannan; Li, Rubin; Yu, Youshuang; Feng, Zheng-Jie; Kang, Baojuan; Zhuo, Shuangmu; Ge, Jun‐Yi; Zhang, Jincang; Cao, Shixun

doi:10.1007/s11467-018-0862-3

Cited by 15 publications

(11 citation statements)

References 19 publications

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“…Subsequently, the Er 3+ magnetic moment increases further, leading to an increase in total magnetization until the highest positive value is reached at T ssw2 = 30.5 K. When the temperature is cooled to T ssw2 = 30.5 K, a small sudden drop in the magnetization along a -axis occurs, which is due to the magnetic moment flip of partial Er 3+ ions. Compared with ErFeO 3 , the SR transition temperature zone of the Pr 0.3 Er 0.7 FeO 3 shifts toward higher temperatures, and both of the characteristic temperatures in the M – T curve of this system, i.e., the magnetization compensation temperature ( T comp ) and spin switching triggering temperature ( T ssw ), shift toward higher temperatures. ,, In the FCW mode along the a -axis (orange color curve), as shown in Figure . As the temperature increases to T ssw3 = 93.9 K, the type-I spin switching effect occurs, caused by the change in three ionic magnetic moments in Pr 3+ ↓Er 3+ ↑Fe 3+ ↓ coupling configuration to Pr 3+ ↑Er 3+ ↓Fe 3+ ↑ coupling configuration, which leads to the change in the magnetization from negative to positive.…”

Section: Resultsmentioning

confidence: 89%

“…After reviewing the relevant literature and comparing the spectra obtained in the experiments, we obtained five Raman peaks presented in this condition, corresponding to the wavenumbers: 269, 342, 430, 502, and 643 cm –1 . , The Raman peaks all reflect rotational and stretching operations associated with Fe–O bonds or FeO 6 octahedra because the Raman modes at wavenumbers greater than 300 cm –1 are associated with the vibration of O 2– or FeO 6 octahedra. Compared with the Raman test results of ErFeO 3 , the positions of each Raman peak are offset, and the Raman peak of Pr 0.3 Er 0.7 FeO 3 moves to the low-wavenumber direction . This is because the radius of Pr 3+ is larger than Er 3+ , and the partial substitution of Pr 3+ increases the volume of Pr 0.3 Er 0.7 FeO 3 , which affects the Raman peak moving in the low-wavenumber direction.…”

Section: Resultsmentioning

confidence: 99%

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Field-Tuning Mechanisms of Spin Switching and Spin Reorientation Transition in Praseodymium–Erbium Orthoferrite Single Crystals

Yuan

Yang

et al. 2022

Inorg. Chem.

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Field-tuning mechanisms of spin switching and spin reorientation (SR) transition were investigated in a series of highquality single crystal samples of Pr x Er 1−x FeO 3 (x = 0, 0.1, 0.3, 0.5) prepared using the optical floating zone method. The single crystal quality, structure, and axis orientation were determined by roomtemperature powder X-ray diffraction, back-reflection Laue X-ray diffraction, and Raman scattering at room temperature. Magnetic measurements indicate that the type and temperature region of SR transition are tuned by introducing different ratios of Pr 3+ doping (x = 0, 0.1, 0.3, 0.5). The trigger temperatures of spin switching and magnetization compensation temperature of Pr x Er 1−x FeO 3 crystals can be adjusted by doping with different proportions of Pr 3+ . Furthermore, the trigger temperature of the two types of spin switching in Pr 0.3 Er 0.7 FeO 3 along the a-axis can be regulated by an external field. Meanwhile, the isothermal magnetic field-triggered spin switching effect is also observed along the a and c-axes of Pr 0.3 Er 0.7 FeO 3 . An in-depth understanding of the magnetic coupling and competition between the R 3+ and Fe 3+ magnetic sublattices, within the RFeO 3 system, has important implications for advancing the practical applications of the relevant spin switching materials.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Field-Tuning Mechanisms of Spin Switching and Spin Reorientation Transition in Praseodymium–Erbium Orthoferrite Single Crystals

Yuan

Yang

et al. 2022

Inorg. Chem.

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“…Chapter 5 -Structural distortions of orthorhombic RFeO3 and RMnO3 substitution is less studied, which may be due to the fact that the rare-earth sublattice can also couple with the iron sublattice, yielding a more intricated behavior of these compounds [60,61] . Thus, this substitution cannot be reduced to a simple tune of the structure, as the interplay between the R 3+ and the Fe 3+ spins is also being changed.…”

Section: Continuously Tuning the Jahn-teller Distortionmentioning

confidence: 99%

Structural distortions of orthorhombic RFeO3 and RMnO3

2021

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We will address in detail the structural distortions responsible for the symmetry lowering of the ideal cubic Pm-3m perovskite to the orthorhombic Pnma structure of RFeO3 and RMnO3 (R = trivalent rare-earth cation), important to the stabilization of the different magnetic and multiferroic phases in these materials. We will also show how the Amplimodes tool of Bilbao Crystallographic Server is useful in quantifying these distortions and establish which phonons can be used as probes of both the octahedra tilting and deformation.

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“…Considering the strong coupling between the R 3+ and Fe 3+ in determining the SR transition temperature [10], one strategy to modulate the SR transition temperature is by rare-earth doping and this has been investigated intensively in various orthoferrites [16][17][18][19][20][21][22]. In contrast, there has been considerably less investigations of rare-earth or-thoferrites by introducing transition-metal elements at the Fe site.…”

Section: Introductionmentioning

confidence: 99%

Thermal control magnetic switching dominated by spin reorientation transition in Mn-doped PrFeO3 single crystals

et al. 2021

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Spin reorientation transition (SRT) has attracted substantial attention due to its important role in the ultrafast control of spins. However, the transition temperature is usually too low for its practical applications. Here, we demonstrate the ability to modulate the SRT temperature in PrFe 1−x Mn x O 3 single crystals from 196 K to 317 K across the room temperature by varying the Mn concentration. Interestingly, the Γ 4 to Γ 1 spin reorientation of the Mn-doped PrFeO 3 is distinct from the Γ 4 to Γ 2 spin reorientation transition as in the parent material. Because of the coupling between rare-earth ions and transition-metal ions in determining the SRT temperature, the demonstrated control scheme of spin reorientation transition temperature by Mn-doping is expected to be used in temperature control magnetic switching devices and applicable to many other rare-earth orthoferrites.

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Tuning spin reorientation in Er1-xYxFeO3 single crystal family

Cited by 15 publications

References 19 publications

Field-Tuning Mechanisms of Spin Switching and Spin Reorientation Transition in Praseodymium–Erbium Orthoferrite Single Crystals

Field-Tuning Mechanisms of Spin Switching and Spin Reorientation Transition in Praseodymium–Erbium Orthoferrite Single Crystals

Structural distortions of orthorhombic RFeO3 and RMnO3

Thermal control magnetic switching dominated by spin reorientation transition in Mn-doped PrFeO3 single crystals

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