Publications

(2025) Signatures of Polar Metal Phase in the Quasi-2D Electron System in PLD-Grown Amorphous-Epitaxial Oxide Heterostructures

DOI: 10.1021/acs.nanolett.5c03409

A. Sambri, Y. Chen, F. Mazzola, E. Di Gennaro, A. Rubano, M. Rath, D. Paparo, M. Caputo, A. Chikina, D. Kumar, V. N. Strocov, M. Salluzzo, F. Miletto Granozio

For years, itinerant charge carriers in ferroelectric insulators were believed to completely quench ferroelectricity. Recent breakthroughs, however, demonstrated the existence of a novel class of quasi-two-dimensional polar metals with promising applications in nonvolatile electronics and...

(2022) A two-dimensional superconducting electron gas in freestanding LaAlO3/SrTiO3 micro-membranes

DOI: 10.1021/acs.nanolett.2c00992

R. Erlandsen, R. T. Dahm, F. Trier, M. Scuderi, E. Di Gennaro, A. Sambri, C. Kirchert, N. Pryds F. Miletto Granozio, T. S. Jespersen

Freestanding oxide membranes constitute an intriguing material platform for new functionalities and allow integration of oxide electronics with technologically important platforms such as silicon. Sambri et al. recently reported a method to fabricate freestanding LaAlO₃/SrTiO₃ (LAO/STO) membranes by...

(2021) Size-Controlled Spalling of LaAlO3/SrTiO3 Micro-membranes

DOI: 10.1021/acsami.0c21612

R. T. Dahm, R. Erlandsen, F. Trier, A. Sambri, E. Di Gennaro, A. Guarino, L. Stampfer, D. V Christensen, F. Miletto Granozio, T. S. Jespersen

The ability to form freestanding oxide membranes of nanoscale thickness is of great interest for enabling material functionality and for integrating oxides in flexible electronic and photonic technologies. Recently, a route has been demonstrated for forming conducting heterostructure membranes of...

(2020) Self-Formed, Conducting LaAlO3/SrTiO3 Micro-Membranes

DOI: 10.1002/adfm.201909964

A.Sambri, M.Scuderi, A. Guarino, E. Di Gennaro, R. Erlandsen, R. T. Dahm, A. Bjørlig, D. V. Christensen, R. Di Capua, U. Scotti di Uccio, S. Mirabella, T. S. Jespersen, G. Nicotra, C. Spinella, F. Miletto Granozio

The discovery of 2D conductivity at the LaAlO₃/SrTiO₃ interface has been linking, for over a decade, two of the major current research fields in materials science: correlated transition-metal-oxide systems and low-dimensional systems. Notably, despite the 2D nature of the interfacial electron gas,...