Carpy-Galy phases AnBnO3n+2 = ABOx

Last update 02 July 2024

Carpy-Galy phases cover page

This paper and report of research results in form of a presentation comprises 477 slides or pages. It is published by the library of the ETH Zurich / ETH Research Collection via external page https://doi.org/10.3929/ethz-b-000424221

This link allows the download as pdf document or as ppsx type PowerPoint show with 17 embedded videos from the synthesis of various materials by floating zone melting.

 

Paper and report of research results

This paper and report of research results in form of a presentation comprises 45 slides or pages. It is published by the library of the ETH Zurich / ETH Research Collection via external page https://doi.org/10.3929/ethz-b-000680533

This link allows the download as pdf document.

 

Two distinct charge density waves in the quasi-one-dimensional metal Sr0.95NbO3.37 (Sr- and O-deficient n = 5) revealed by resonant soft X-ray scattering


A comprehensive study revealed the presence of two distinct and simultaneous charge density waves (CDWs). Remarkably, they appear not along the metallic a-axis but along the non-metallic c-axis and one is a Peierls-like CDW and the other is a Wigner crystal CDW.

Cover page of the article in the NPG Asia Materials journal

Two distinct charge density waves in the quasi-one-dimensional metal Sr0.95NbO3.37 revealed by resonant soft X-ray scattering

Angga Dito Fauzi, Caozheng Diao, Thomas J. Whitcher, Frank Lichtenberg, Ping Yang, Mark B. H. Breese, and Andrivo Rusydi

NPG Asia Materials 16 (2024) 27: external page doi.org/10.1038/s41427-024-00547-7

 

Optical and photoinduced properties of the quasi-1D metals Sr0.95NbO3.37 (Sr- and O-deficient n = 5) and SrNbO3.45 (n = 4.5)

A comprehensive study revealed particular photoinduced features. Among others, a special laser-based mid-infrared (MIR) pump-probe reflectance setup was build. It allows room temperature transient pump-probe reflectivity experiments with fully controlled anisotropic polarizations on the sample.

Phys-Comm-Paper-Cover

Photoinduced metastable dd-exciton-driven metal-insulator transitions in quasi-one-dimensional transition metal oxides

Teguh Citra Asmara, Frank Lichtenberg, Florian Biebl, Tao Zhu, Pranab Kumar Das, Muhammad Avicenna Naradipa, Angga Dito Fauzi, Caozheng Diao, Ping Yang, Philipp Lenzen, Sören Buchenau, Benjamin Grimm-Lebsanft, Dongyang Wan, Paolo E. Trevisanutto, Mark B. H. Breese, T. Venkatesan, Michael Rübhausen & Andrivo Rusydi

Communications Physics 3, 206 (2020): external page doi.org/10.1038/s42005-020-00451-w

 

Excitonic quenching of the oxygen-chain phonon in the photoinduced metal-to-insulator transition of photoexcited Sr0.95NbO3.37 (Sr- and O-deficient n=5) studied by ultraviolet-resonance Raman scattering

This study shows that the quenching mechanism is electronically driven.

First page of the Physical Review B 107 publication, volume 035149, year 2023

Excitonic quenching of the oxygen-chain phonon in the photoinduced metal-to-insulator transition of photoexcited Sr0.95NbO3.37 studied by ultraviolet-resonance Raman scattering

Sören Buchenau, Florian Biebl, Benjamin Grimm-Lebsanft, Philipp Lenzen, Teguh C. Asmara, Andrivo Rusydi, Frank Lichtenberg & Michael Rübhausen

Physical Review B 107, 035149 (2023): external page doi.org/10.1103/PhysRevB.107.035149

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