Fully Optical Control of Polarization Current Direction in a Cyanide-Bridged Trinuclear Complex.
Angew Chem Int Ed Engl
; 63(38): e202409948, 2024 Sep 16.
Article
in En
| MEDLINE
| ID: mdl-38949953
ABSTRACT
As a remote and non-contact stimulus, light offers the potential for manipulating the polarization of ferroelectric materials without physical contact. However, in current research, the non-contact write-read (erase) process lacks direct observation through the stable current as output signal. To address this limitation, we investigated the photoinduced polarization switching capabilities of the cyanide-bridged compound [Fe2Co] using visible light, leading to the achievement of rewritable polarization. By subjecting [Fe2Co] crystals to alternating irradiation with 785â
nm and 532â
nm light, the polarization changes exhibited a distinct square wave pattern, confirming the reliability of the writing and erasing processes. Initialization involved exposing specific crystal units to 532â
nm light for storing "1" or "0" information, while reading was accomplished by scanning the units with 785â
nm light, resulting in brief current pulses for "1" states and no current signal for "0" states. This research unveils new possibilities for optical storage systems, paving the way for efficient and rewritable data storage and retrieval technologies, such as the next-generation memories.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Angew Chem Int Ed Engl
/
Angew. Chem. (Int. ed., Internet)
/
Angewandte Chemie (International ed. Internet)
Year:
2024
Type:
Article
Affiliation country:
Japan