A time-dependent order parameter for ultrafast photoinduced phase transitions

P Beaud, A Caviezel, SO Mariager, L Rettig, G Ingold… - Nature materials, 2014 - nature.com
Strongly correlated electron systems often exhibit very strong interactions between structural
and electronic degrees of freedom that lead to complex and interesting phase diagrams,. For …

Raman phonons as a probe of disorder, fluctuations, and local structure in doped and undoped orthorhombic and rhombohedral manganites

L Martín-Carrón, A De Andres, MJ Martínez-Lope… - Physical Review B, 2002 - APS
We present a rationalization of the Raman spectra of orthorhombic and rhombohedral,
stoichiometric and doped, manganese perovskites. In particular, we study R MnO 3 (R= La …

Raman scattering study and electrical properties characterization of elpasolite perovskites Ln2 (BB′) O6 (Ln= La, Sm… Gd and B, B′= Ni, Co, Mn)

CL Bull, PF McMillan - Journal of Solid State Chemistry, 2004 - Elsevier
Two series of elpasolite perovskites Ln2CoMnO6 and Ln2NiMnO6 (Ln= La, Pr, Nd, Sm, Gd)
have been prepared. The electronic band gap and magnetic Curie temperature vary …

Ultrafast Structural Phase Transition Driven by Photoinduced Melting<? format?> of Charge and Orbital Order

P Beaud, SL Johnson, E Vorobeva, U Staub… - Physical review …, 2009 - APS
We use femtosecond x-ray diffraction to probe directly the structural dynamics of a charge
ordered and orbitally ordered thin film of La 0.42 Ca 0.58 MnO 3 initiated by an ultrafast …

Reemergent metal-insulator transitions in manganites exposed with spatial confinement

TZ Ward, S Liang, K Fuchigami, LF Yin, E Dagotto… - Physical review …, 2008 - APS
The metal-insulator transition is characterized as a single peak in the temperature-
dependent resistivity measurements; exceptions to this have never been seen in any single …

Nanoscale architecture of (La0. 6Sr1. 4) 0.95 Mn0. 9B0. 1O4 (BCo, Ni, Cu) Ruddlesden–Popper oxides as efficient and durable catalysts for symmetrical solid oxide …

J Wang, J Zhou, J Yang, Z Zong, L Fu, Z Lian, X Zhang… - Renewable Energy, 2020 - Elsevier
Abstract A-site deficient (La 0.6 Sr 1.4) 0.95 Mn 1-x B x O 4 (x= 0, 0.1, B= Co, Ni, Cu)(LSMBO
4) Ruddlesden–Popper oxides were demonstrated as promising symmetrical electrodes for …

Jahn-Teller reconstructed surface of the doped manganites shown by means of surface-enhanced Raman spectroscopy

S Merten, V Bruchmann-Bamberg, B Damaschke… - Physical Review …, 2019 - APS
We report direct evidence of the theoretically predicted electron-rich surface of doped
perovskite manganites La 0.7 A 0.3 MnO 3 (A= Ca, Sr) by means of surface-enhanced …

Photoinduced evolution of lattice orthorhombicity and conceivably enhanced ferromagnetism in LaMnO3 membranes

Q Lu, Y Cheng, L Wu, H Guo, F Qi, H Zhang, J Yu… - npj Quantum …, 2022 - nature.com
Ultrashort laser pulses have been utilized to dynamically drive phase transitions in
correlated quantum materials. Of particular interest is whether phases not achievable in …

Multi-mode excitation drives disorder during the ultrafast melting of a C4-symmetry-broken phase

D Perez-Salinas, AS Johnson, D Prabhakaran… - Nature …, 2022 - nature.com
Spontaneous C4-symmetry breaking phases are ubiquitous in layered quantum materials,
and often compete with other phases such as superconductivity. Preferential suppression of …

In-situ growth of Ru/RuO2 nanoparticles decorated (La0. 6Sr1. 4) 0.95 Mn0. 9Ru0. 1O4 as a potential electrode for symmetrical solid oxide fuel cells

J Wang, J Yang, L Fu, Z Zong, J Zhou, K Wu - Renewable Energy, 2022 - Elsevier
The A-site deficient (La 0.6 Sr 1.4) 0.95 Mn 0.9 Ru 0.1 O 4 (LSMRuO 4) K 2 NiF 4-type oxide
is developed as a potential electrode for symmetrical solid oxide fuel cells (SSOFCs) with …