Electronic and magnetic properties of lanthanum and strontium doped bismuth ferrite: a first-principles study

A Ghosh, DP Trujillo, H Choi, SM Nakhmanson… - Scientific reports, 2019 - nature.com
While bismuth ferrite BiFeO3 (BFO) is a well studied multiferroic material, its electronic and
magnetic properties in the presence of A-site dopants have not been explored widely. Here …

Correlation between macroscopic and microscopic relaxation dynamics of water: Evidence for two liquid forms

NQ Vinh, LC Doan, NLH Hoang, JR Cui… - The Journal of Chemical …, 2023 - pubs.aip.org
Water is vital for life, and without it, biomolecules and cells cannot maintain their structures
and functions. The remarkable properties of water originate from its ability to form hydrogen …

Extremely low-frequency phonon material and its temperature-and photo-induced switching effects

T Yoshida, K Nakabayashi, H Tokoro, M Yoshikiyo… - Chemical …, 2020 - pubs.rsc.org
Atomic vibrations due to stretching or bending modes cause optical phonon modes in the
solid phase. These optical phonon modes typically lie in the frequency range of 102 to 104 …

[HTML][HTML] Interfacial layers between ion and water detected by terahertz spectroscopy

AK Singh, LC Doan, D Lou, C Wen… - The Journal of Chemical …, 2022 - pubs.aip.org
Dynamic fluctuations in the hydrogen-bond network of water occur from femto-to
nanosecond timescales and provide insight into the structural/dynamical aspects of water at …

Probing adaptation of hydration and protein dynamics to temperature

LC Doan, JN Dahanayake, KR Mitchell-Koch… - Acs Omega, 2022 - ACS Publications
Protein dynamics is strongly influenced by the surrounding environment and physiological
conditions. Here we employ broadband megahertz-to-terahertz spectroscopy to explore the …

Phonon confinement and particle size effect on the low-frequency Raman mode of aurivillius phase Bi 4 Ti 3 O 12 powders

IC Amaechi, A Ruediger, A Pignolet - RSC advances, 2023 - pubs.rsc.org
We report the systematic measurements in bismuth titanate powders of Raman frequency
shift, ω and full width at half maximum (FWHM), Γ of optical phonons at q= 0 obtained …

Polarization rotation in by isovalent doping at the fluorite sublattice

K Co, FC Sun, SP Alpay, SK Nayak - Physical Review B, 2019 - APS
Bismuth titanate, Bi 4 Ti 3 O 12 (BiT), is a complex layered ferroelectric material that is
composed of three perovskitelike units and one fluoritelike unit stacked alternatively along …

Resilience of the Aurivillius structure upon La and Cr doping in a Bi 5 Ti 3 FeO 15 multiferroic

OA Salas, YW Getahun, HC Mandujano, F Manciu… - Dalton …, 2024 - pubs.rsc.org
Combining the experimental techniques of high-resolution X-ray diffraction, magnetometry,
specific heat measurement, and X-ray photoelectron, Raman and dielectric spectroscopy …

Non–ferroelectric intercalation structure based on aurivillius phase Bi4Ti3O12: a research arena to achieve high energy storage performance

X Gou, Y Liu, N Jiang, Y Li, Y Jiang, J Chen, Z Tang… - Ceramics …, 2022 - Elsevier
High density energy capacity is the benchmark of electronic industry, and its improvement is
on the way. Here, the BaCaBi 4 Ti 5 O 18 films present high efficient energy storage trait …

Local atomic structure distortions in the Dion-Jacobson ferroelectric

J Kong, SK Nayak, J Liu, SP Alpay, A Pramanick - Physical Review B, 2022 - APS
Despite recent interest in Bi-containing layered-perovskite ferroelectrics due to high T c, their
rational design is constrained by a poor understanding of local atomic structures. Here, we …