Magnetic phase diagram of hexagonal GdInO3

Researchers from Heidelbergs Kirchoff Institute of Physics investigated the magnetization process down to the mK-regime and the magnetic phase diagrams of the hexagonal perovskite rare earth oxide GdInO3. To compensate the heavy volatilization of In2O3 the single crystals were grown under an oxygen pressure of 30 bar using the ScIDre optical floating zone furnace…

Polymorphism in the Ruddlesden–Popper Nickelate La3Ni2O7: Discovery of a Hidden Phase

Another significant discovery has been made in the currently very popular and rapidly evolving field of Ruddlesden-Popper Nickelates. Scientists at Argonne National Laboratory have discovered a new polymorph of the RP phase La3Ni2O7. Boules of this polymorph, which were grown under high oxygen pressure with a ScIDre optical floating zone furnace HKZ-150 at 13 to…

Superconductivity in trilayer nickelate La4Ni3O10 single crystals

Rare-earth nickelates are becoming more and more the focus of research since the discovery of high-temperature superconductivity in infinite-layer and Ruddlesden-Popper (RP) bilayer nickelates. For exploration of the underlying mechanism of potential superconductivity, the trilayer RP compound La4Ni3O10 is ideal, as it maintains its metallic character at low temperatures…

Phase formation in hole- and electron-doped rare-earth nickelate single crystals

Since the discovery of superconducting behavior in hole-doped rare-earth nickelates with an infinite-layer crystal structure Ruddlesden–Popper nickelates Rn+1NinO3n+1 have increasingly become the focus of research again in recent years. However, growing larger single crystals in this class of compounds posed a major experimental challenge. The use of the high-oxygen…

Synthesis and Characterization of the new Double Perovskite Y2MgRuO6

Recently, Scientists of the Max-Planck-Institute CPfS found a new compound in the scientificly interesting group of ruthenates. Y2MgRuO6, a new double perovskite, was grown with a ScIDre HKZ mirror furnace under an O2/Ar atmosphere of 10 bar. As is typical for ruthenates, the strong evaporation of RuO2 is what makes the synthesis experimentally challenging.

Although…

Li5.5La3Nb1.5Zr0.5O12 - a promising candidate for solid-state electrolytes in Li-ion batteries

All-solid-state lithium-ion batteries are superior to conventional lithium-ion batteries in terms of energy density and safety risks and are currently of interest in battery research. For the investigation of solid-state Li-ion conductors a single-crystal state of the materials is preferable.

The study shows the growth of Li5.5La3Nb1.5Zr0.5O12,…

High-pressure crystal growth of nickelates La4Ni3O10

We are thrilled to see yet another remarkable article on crystal growth of nickelates published some days ago by Kirchhoff Institute of Physics scientists from Heidelberg University. The quasi-two-dimensional Ruddlesden–Popper trilayer phase La4Ni3O10 exhibits an exciting mixture of Ni2+ and Ni3+ ions and an unusual metal-to-metal transition,…

Synthesis and physical properties of LaNiO2 crystals

Nickelates with different valence states of the Ni ions are increasingly becoming the focus of cutting-edge research in solid-state physics. Recent discoveries of superconductivity in thin films and bulk crystals have fueled the synthesis and investigation efforts of these compounds. Achieving stabilization of the Ni3+ valence state in LaNiO3 requires high partial pressure of oxygen for…

New Nature article: Signatures of superconductivity near 80 K in La3Ni2O7 under high pressure

High pressure crystal growth of a nickelate with a ScIDre HKZ furnace yields a high-impact publication with remarkable results:
Nature published a study based on the single crystal growth of La3Ni2O7, grown with the floating zone technique at an oxygen pressure of 15 bar. Scientists of the Sun…

Scintillation and Photoluminescence Properties of Lu2O3:Eu

Recently, Scientists of Shanghai University investigated the scintillation and photoluminescence properties of Lu2O3:Eu. By using one of our HKZ furnaces, they prepared a series of crystals via optical floating zone crystal growth. Lu2O3:1%Eu and Lu2O3:8%Eu crystals…