High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb<sub>2</sub>NiReO<sub>6</sub>

Lyubenova, T. Stoyanova; santos‐García, Antonio J. Dos; Urones‐Garrote, E.; Torralvo, M.J.; Alario-Franco, M.Á.

doi:10.1039/c3dt52073k

Cited by 14 publications

(6 citation statements)

References 33 publications

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“…Equal numbers of AFM and FM interactions are present for a random 50:50 cation distribution, resulting in a classical random-bond spin-glass configuration . The modulation may contribute further by introducing strained areas with different exchange constants, as in Pb 2 NiReO 6 , where compositional microdomains prevent long-range order and induce spin-glass behavior …”

Section: Resultsmentioning

confidence: 99%

“…34 The modulation may contribute further by introducing strained areas with different exchange constants, as in Pb 2 NiReO 6 , where compositional microdomains prevent long-range order and induce spin-glass behavior. 35 In conclusion, BiCr 0.5 Ni 0.5 O 3 requires high pressure to be synthesized and can be considered a solid solution between the high-pressure phase of BiNiO 3 -III and the high-temperature phase of BiCrO 3 . Bulk diffraction measurements show a random B-site distribution and an orthorhombically distorted perovskite structure for BiCr 0.5 Ni 0.5 O 3 .…”

Section: +mentioning

confidence: 94%

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Spin-Glass Behavior and Incommensurate Modulation in High-Pressure Perovskite BiCr_0.5Ni_0.5O₃

et al. 2014

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The BiCr(0.5)Ni(0.5)O(3) perovskite has been obtained at high pressure. Neutron and synchrotron diffraction data show a Pnma orthorhombic structure with a = 5.5947(1) Å, b = 7.7613(1) Å, and c = 5.3882(1) Å at 300 K and random B-site Cr/Ni distribution. Electron diffraction reveals an incommensurate modulation parallel to the b axis. The combination of either Cr-O-Ni (J > 0) or Cr-O-Cr/Ni-O-Ni (J < 0) nearest-neighbor spin interactions results in a random-bond spin-glass configuration. Magnetization, neutron diffraction, and muon-spin-relaxation measurements demonstrate that variations in the local bonding and charge states contribute to the magnetic frustration.

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Section: Resultsmentioning

confidence: 99%

Section: +mentioning

confidence: 94%

Spin-Glass Behavior and Incommensurate Modulation in High-Pressure Perovskite BiCr_0.5Ni_0.5O₃

et al. 2014

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“…The highly magnified TEM image clearly shows the atomic arrangement of the Hg and Br elements (Figure 5b). The inset of Figure 5b, a selected area electron diffraction (SAED) pattern along the [001] zone axis, exhibits typical periodic dot patterns of [(110), (200), and (1 1 0)], representing a tetragonal structure [25]. As shown in the TEM image of a single crystal, many stacking faults appeared due to the layer-type structure with relatively weak van der Waals bonds.…”

Section: Resultsmentioning

confidence: 99%

In-depth Investigation of Hg2Br2 Crystal Growth and Evolution

Kim

Lee²,

Kang³

et al. 2019

Materials

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Physical vapor transport (PVT) has frequently been adopted for the synthesis of mercurous bromide (Hg2Br2) single crystals for acousto-optic modulators. However, thus far, very few in-depth studies have been conducted that elucidate the growth process of the Hg2Br2 single crystal. This paper reports an in-depth investigation regarding the crystal growth and evolution behavior of the Hg2Br2 crystal with facet growth mode. Based on the experimental and simulation results, the temperature profile conditions concerning the seed generation and seed growth could be optimized. Next, the PVT-grown Hg2Br2 crystals (divided into single crystal and quasi-single crystal regions) were characterized using various analysis techniques. The single-crystal Hg2Br2 was found to possess a more uniform strain than that of the quasi-single crystal through a comparison of the X-ray diffraction data. Meanwhile, the binding energy states and electron backscatter diffraction images of the as-synthesized Hg2Br2 crystals were similar, regardless of the crystal type. Furthermore, Raman spectroscopy and transmission electron microscopy analyses provided information on the atomic vibration mode and atomic structures of the two kinds of samples. The synergistic combination of the simulation and experimental results used to verify the growth mechanism facilitates the synthesis of high-quality Hg2Br2 crystals for potential acousto-optic tunable filter device applications.

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“…33,39 Both P2 1 /n and I2/m symmetries are characteristic of distorted double perovskites with alternating MO 6 and IrO 6 complexes along the three crystallographic directions in a long-range Oh M/Ir ordering. 53,54 Oxygen vacancies can play a key role in the OER activity of oxides. Therefore, the presence or absence of oxygen vacancies in the double perovskites was assessed by means of PND.…”

Section: Double-perovskite Structure and Compositionmentioning

confidence: 99%

How oxidation state and lattice distortion influence the oxygen evolution activity in acid of iridium double perovskites

et al. 2021

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High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb₂NiReO₆

Cited by 14 publications

References 33 publications

Spin-Glass Behavior and Incommensurate Modulation in High-Pressure Perovskite BiCr_0.5Ni_0.5O₃

Spin-Glass Behavior and Incommensurate Modulation in High-Pressure Perovskite BiCr_0.5Ni_0.5O₃

In-depth Investigation of Hg2Br2 Crystal Growth and Evolution

How oxidation state and lattice distortion influence the oxygen evolution activity in acid of iridium double perovskites

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High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb2NiReO6

Cited by 14 publications

References 33 publications

Spin-Glass Behavior and Incommensurate Modulation in High-Pressure Perovskite BiCr0.5Ni0.5O3

Spin-Glass Behavior and Incommensurate Modulation in High-Pressure Perovskite BiCr0.5Ni0.5O3

In-depth Investigation of Hg2Br2 Crystal Growth and Evolution

How oxidation state and lattice distortion influence the oxygen evolution activity in acid of iridium double perovskites

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Product

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High-pressure synthesis, structural and complex magnetic properties of the ordered double perovskite Pb₂NiReO₆

Spin-Glass Behavior and Incommensurate Modulation in High-Pressure Perovskite BiCr_0.5Ni_0.5O₃

Spin-Glass Behavior and Incommensurate Modulation in High-Pressure Perovskite BiCr_0.5Ni_0.5O₃