Unified description of electronic orderings and cross correlations by complete multipole representation

S Hayami, H Kusunose - Journal of the Physical Society of Japan, 2024 - journals.jps.jp
We overview recent developments of electronic orderings and associated cross correlations
in condensed matter physics based on a complete set of multipole representations (electric …

Electric Toroidal Quadrupoles in the Spin-Orbit-Coupled Metal

S Hayami, Y Yanagi, H Kusunose, Y Motome - Physical review letters, 2019 - APS
We report our theoretical results on the order parameters for the pyrochlore metal Cd 2 Re 2
O 7, which undergoes enigmatic phase transitions with inversion symmetry breaking. By …

Antisymmetric thermopolarization by electric toroidicity

J Nasu, S Hayami - Physical Review B, 2022 - APS
We investigate electric polarizations that emerge perpendicular to an applied thermal
gradient in insulating systems. The thermally induced electric polarization, known as …

Harnessing interpretable and unsupervised machine learning to address big data from modern X-ray diffraction

J Venderley, K Mallayya, M Matty… - Proceedings of the …, 2022 - National Acad Sciences
The information content of crystalline materials becomes astronomical when collective
electronic behavior and their fluctuations are taken into account. In the past decade …

Suppressing non-radiative recombination in metal halide perovskite solar cells by synergistic effect of ferroelasticity

W Qin, W Ali, J Wang, Y Liu, X Yan, P Zhang… - Nature …, 2023 - nature.com
The low fraction of non-radiative recombination established the foundation of metal halide
perovskite solar cells. However, the origin of low non-radiative recombination in metal halide …

Electronic states of metallic electric toroidal quadrupole order in determined by combining quantum oscillations and electronic structure calculations

HT Hirose, T Terashima, D Hirai, Y Matsubayashi… - Physical Review B, 2022 - APS
Pyrochlore oxide Cd 2 Re 2 O 7 exhibits successive structural transitions upon cooling that
break its inversion symmetry. The low-temperature noncentrosymmetric metallic phases are …

Successive phase transitions of the spin–orbit-coupled metal Cd2Re2O7 probed by high-resolution synchrotron x-ray diffraction

D Hirai, A Fukui, H Sagayama… - Journal of Physics …, 2022 - iopscience.iop.org
The 5d pyrochlore oxide superconductor Cd 2 Re 2 O 7 (CRO) has attracted significant
interest as a spin–orbit-coupled metal (SOCM) that spontaneously undergoes a phase …

Crystal structure of the inversion-breaking metal

MR Norman - Physical Review B, 2020 - APS
Second harmonic generation (SHG) on the pyrochlore metal Cd 2 Re 2 O 7 indicates the
presence of three order parameters setting in below an inversion breaking transition. Here …

Anomalous changes of electric quadrupole order at low temperatures in the spin-orbit coupled metal

S Uji, S Sugiura, HT Hirose, T Terashima… - Physical Review B, 2020 - APS
Magnetic torque measurements in the spin-orbit coupled metal Cd 2 Re 2 O 7 have been
performed to investigate unique multipole orders associated with inversion symmetry …

Successive Continuous Phase Transitions in Spin–Orbit Coupled Metal Cd2Re2O7

S Uji, HT Hirose, T Terashima… - Journal of the Physical …, 2021 - journals.jps.jp
A spin–orbit coupled metal Cd2Re2O7 is known to show two structural phase transitions at T
s1≈ 200 K and T s2≈ 115 K, which are likely of an electronic origin. The magnetic torque …