Materials Synthesis Approaches to Infinite-Layer Nickelate Thin Films from a High-Crystallinity Precursor Phase
ORAL
Abstract
Zhengang Dong1, Marios Hadjimichael2, Bernat Mundet2, Jean-Marc Triscone2, Danfeng Li1
1Department of Physics, City University of Hong Kong, Kowloon, Hong Kong
2Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
The discovery of superconductivity in infinite-layer nickelates has engendered reviving interest in the study of a cuprate-analog system [1,2]. Notably, superconducting nickelates display signatures of intriguing similarities and distinctions to the cuprates in their phase diagrams, antiferromagnetic interactions, rare-earth dependence, and superconducting anisotropy, among others. Partially owing to the non-trivial challenges in materials synthesis and their thin-film nature, experimental demonstration of the intrinsic properties of this family of materials has still been limited [3,4]. We present our latest developments in alternative synthesis approaches for the high-quality Nd-series of the materials system and probing of their electronic structure/properties, in a broader context of the role that chemical and structural environments can play. Our approach may offer new opportunities to overcoming the difficulties in stabilizing this otherwise thermodynamically unstable family of materials.
[1] D. Li et al., Nature 572, 624 (2019).
[2] D. Li et al., Physical Review Letters 125, 27001 (2020).
[3] K. Lee et al., APL Materials 8, 041107 (2020).
[4] K. Lee et al., arXiv:2203.02580 (2022).
1Department of Physics, City University of Hong Kong, Kowloon, Hong Kong
2Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
The discovery of superconductivity in infinite-layer nickelates has engendered reviving interest in the study of a cuprate-analog system [1,2]. Notably, superconducting nickelates display signatures of intriguing similarities and distinctions to the cuprates in their phase diagrams, antiferromagnetic interactions, rare-earth dependence, and superconducting anisotropy, among others. Partially owing to the non-trivial challenges in materials synthesis and their thin-film nature, experimental demonstration of the intrinsic properties of this family of materials has still been limited [3,4]. We present our latest developments in alternative synthesis approaches for the high-quality Nd-series of the materials system and probing of their electronic structure/properties, in a broader context of the role that chemical and structural environments can play. Our approach may offer new opportunities to overcoming the difficulties in stabilizing this otherwise thermodynamically unstable family of materials.
[1] D. Li et al., Nature 572, 624 (2019).
[2] D. Li et al., Physical Review Letters 125, 27001 (2020).
[3] K. Lee et al., APL Materials 8, 041107 (2020).
[4] K. Lee et al., arXiv:2203.02580 (2022).
–
Presenters
-
Danfeng Li
Stanford University, City University of Hong Kong
Authors
-
Danfeng Li
Stanford University, City University of Hong Kong
-
Zhengang Dong
City University of Hong Kong
-
Marios Hadjimichael
University of Geneva
-
Bernat Mundet
Univ of Geneva
-
Jean-Marc Triscone
Univ of Geneva