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Epitaxial stabilization of thin films of the frustrated Ge-based spinels
- Source :
- Physical Review Materials, vol 5, iss 6
- Publication Year :
- 2021
- Publisher :
- eScholarship, University of California, 2021.
-
Abstract
- Frustrated magnets can host numerous exotic many-body quantum and topological phenomena. GeNi$_2$O$_4$ is a three dimensional $S=1$ frustrated magnet with an unusual two-stage transition to the two-dimensional antiferromagnetic ground state, while GeCu$_2$O$_4$ is a high-pressure phase with a strongly tetragonally elongated spinel structure and magnetic lattice formed by $S=1/2$ CuO$_2$ linear chains with frustrated exchange interactions and exotic magnetic behavior. Here we report on the first thin-film epitaxial stabilization of these two compounds. Developed growth mode, surface morphology, crystal structure and copper valence state were characterized by in-situ reflection high-energy electron diffraction, atomic force microscopy, X-ray reflectivity, X-ray diffraction, X-ray photoelectron spectroscopy and resonant X-ray absorption spectroscopy. Our results pave an alternative route to the comprehensive investigation of the puzzling magnetic properties of these compounds and exploration of novel emergent features driven by strain.
- Subjects :
- Diffraction
Materials science
Valence (chemistry)
Physics and Astronomy (miscellaneous)
Condensed matter physics
Absorption spectroscopy
Strongly Correlated Electrons (cond-mat.str-el)
Magnetic lattice
FOS: Physical sciences
02 engineering and technology
Crystal structure
021001 nanoscience & nanotechnology
01 natural sciences
Condensed Matter - Strongly Correlated Electrons
Condensed Matter::Materials Science
Electron diffraction
0103 physical sciences
Antiferromagnetism
General Materials Science
Condensed Matter::Strongly Correlated Electrons
010306 general physics
0210 nano-technology
Ground state
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Physical Review Materials, vol 5, iss 6
- Accession number :
- edsair.doi.dedup.....0e3ca4e51d27a914e55d31794a5d5ceb