Neodymium aluminate (NdAlO3) is a rare-earth perovskite oxide supplied by Infinita Materials as a high-purity ceramic sputtering target for oxide thin-film deposition. Structurally related to lanthanum aluminate and the broader RAlO3 perovskite family, it combines a high melting point, chemical inertness, and a paramagnetic Nd3+ sublattice with the lattice geometry needed for epitaxial oxide film growth.
Neodymium Aluminate NdAlO₃ crystallises in a rhombohedrally distorted perovskite structure (R-3c), featuring cooperatively tilted AlO₆ octahedra and a pseudocubic lattice framework. It is a wide-bandgap insulating oxide with high thermal stability, chemical durability, and moderate thermal conductivity. The unpaired 4f electron of Nd³⁺ gives bulk NdAlO₃ paramagnetic behaviour. These properties make NdAlO₃ valuable for oxide thin-film deposition. RF magnetron sputtering from ceramic targets enables controlled, uniform films suitable for lattice-compatible buffer and passivation layers in complex-oxide heterostructures. NdAlO₃ films are investigated for high-temperature superconducting structures, microwave dielectric resonators, RF filters, and chemically stable insulating interlayers requiring reliable epitaxy and thermal performance.
Answer: NdAlO₃ is sputtered in an oxygen-rich environment using a reactive sputtering process. The target is bombarded with ions in this process, releasing Nd, Al, and O atoms that deposit onto the substrate as a thin film.
Answer: Although NdAlO₃ itself is not magnetic, sputtered NdAlO₃ films are being explored for magnetic applications in research, particularly in the development of magnetic materials for electronics and data storage.
Answer: NdAlO₃ sputtered films provide insulating and dielectric layers in semiconductor devices such as capacitors, transistors, and other high-performance electronic components.
Answer: NdAlO3 is a wide-bandgap electrical insulator, so RF magnetron sputtering is the standard approach; pulsed DC sputtering can be used in some configurations, particularly for thinner films, but straight DC sputtering is not suitable for this ceramic.
Neodymium Aluminate NdAlO₃ crystallises in a rhombohedrally distorted perovskite structure (R-3c), featuring cooperatively tilted AlO₆ octahedra and a pseudocubic lattice framework. It is a wide-bandgap insulating oxide with high thermal stability, chemical durability, and moderate thermal conductivity. The unpaired 4f electron of Nd³⁺ gives bulk NdAlO₃ paramagnetic behaviour. These properties make NdAlO₃ valuable for oxide thin-film deposition. RF magnetron sputtering from ceramic targets enables controlled, uniform films suitable for lattice-compatible buffer and passivation layers in complex-oxide heterostructures. NdAlO₃ films are investigated for high-temperature superconducting structures, microwave dielectric resonators, RF filters, and chemically stable insulating interlayers requiring reliable epitaxy and thermal performance.
Key Properties of Neodymium Aluminate
Property
Value
Significance
Crystal structure
Rhombohedral perovskite (space group R-3c), pseudocubic
Determines lattice matching with substrates and epitaxial films in oxide heterostructures
Pseudocubic lattice parameter
~3.75 Angstrom
Governs epitaxial compatibility with related perovskite oxide substrates and buffer stacks
Molar mass
~219.22 g/mol
Used in stoichiometry, deposition-rate, and target-consumption calculations
Density (theoretical/ceramic)
6.7-7.14 g/cm3
Affects sputter yield, target mass per unit volume, and expected target lifetime
Melting point
~2233 C
High thermal stability supports use under sustained sputtering plasma heat load
Thermal conductivity
5-10 W/m-K
Moderate value requires controlled power ramping to avoid thermal-shock cracking of the ceramic target.
Insulating nature dictates RF (or pulsed DC) sputtering; paramagnetism is relevant for spintronic and magneto-optic film studies
Sputtering behaviour
RF magnetron sputtering typical; pulsed DC feasible for thin coatings
Low-conductivity ceramic requires RF or pulsed-DC power delivery to avoid target charging and arcing
Types & Grades of Neodymium Aluminate
Neodymium Aluminate targets are offered in standard catalogue sizes and grades, with custom purity, density, and geometry available for OEM and R&D deposition systems.
Grade / Form
Typical Purity
Key Features / Uses
Standard catalogue disc (IN-AlNd-01)
99.9%+
1 in. dia. x 0.125 in. thick; stock size for lab-scale PVD and process development
Standard catalogue disc (IN-AlNd-02)
99.9%+
2 in. dia. x 0.25 in. thick; larger stock format for extended runs and pilot-line use
High-purity grade
99.99% – 99.999%
Reduced transition-metal and rare-earth cross-contamination for research-grade epitaxial films
Large-format / custom planar
99.9% – 99.999%
Rectangular, square, and oversized round targets sized to specific chamber and cathode geometries
Bonded target assembly
99.9% – 99.999%
NdAlO3 ceramic indium- or elastomer-bonded to a copper backing plate for improved thermal management during RF sputtering
Applications of Neodymium Aluminate
Sputtered films of Neodymium Aluminate support demanding roles across research and production applications where this material’s specific structural, electronic, or optical properties are the key requirement.
Industry
Application
Function
Superconducting electronics
Buffer/interlayer for high-Tc superconductor films
Provides a chemically stable, lattice-compatible interlayer between substrates and REBCO-type superconducting films
Complex-oxide electronics
Epitaxial buffer layers for ferroelectric and multiferroic thin-film stacks
Perovskite lattice geometry supports oriented growth of functional oxide films.
RF and microwave components
Dielectric layers for resonators and filters
Low dielectric loss and high-temperature stability support stable microwave performance.
Photonics and optical coatings
Optical buffer and passivation layers
Chemical inertness and thermal stability protect underlying optical structures during processing.
Semiconductor and MEMS research
Insulating barrier and passivation layers
High electrical resistivity and thermal stability suit barrier layers in device test structures
Academic and materials research
PLD and sputtering target for combinatorial oxide film studies
Consistent stoichiometry and purity support reproducible experimental film growth
Why Partner with Infinita Materials?
Technical Depth: in-house quality control with ICP-MS and XRF purity verification, density measurement, and full certificates of analysis on every target.
Global Logistics: reliable supply from single R&D-scale targets to production-line volumes, with established international shipping.
Responsive Support: direct access to materials engineers for grade, bonding, and geometry selection, and process-compatibility questions.
Take the Next Step
Infinita Materials fabricates Neodymium Aluminate sputtering targets engineered to the purity, density, and geometry your deposition process requires. Whether the requirement is a standard catalogue target or a custom size, purity, or bonded assembly, our team can help match the right specification to your deposition system. Request a quote or speak with our technical team to discuss your target specification.
Other Related Product to Neodymium Aluminate, NdAlO3
NdAlO₃ is sputtered in an oxygen-rich environment using a reactive sputtering process. The target is bombarded with ions in this process, releasing Nd, Al, and O atoms that deposit onto the substrate as a thin film.
Although NdAlO₃ itself is not magnetic, sputtered NdAlO₃ films are being explored for magnetic applications in research, particularly in the development of magnetic materials for electronics and data storage.
NdAlO₃ sputtered films provide insulating and dielectric layers in semiconductor devices such as capacitors, transistors, and other high-performance electronic components.
NdAlO3 is a wide-bandgap electrical insulator, so RF magnetron sputtering is the standard approach; pulsed DC sputtering can be used in some configurations, particularly for thinner films, but straight DC sputtering is not suitable for this ceramic.
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