Laser-Induced Cooperative Transition in Molecular Electronic Crystal

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 33(2021), 39 vom: 16. Okt., Seite e2103000
1. Verfasser:	Hu, Yong (VerfasserIn)
Weitere Verfasser:	Adhikari, Dasharath, Tan, Andrew, Dong, Xi, Zhu, Taishan, Wang, Xiaoyu, Huang, Yulong, Mitchell, Travis, Yao, Ziheng, Dasenbrock-Gammon, Nathan, Snider, Elliot, Dias, Ranga P, Huang, Chuankun, Kim, Richard, Neuhart, Ian, Ali, Ahmed H, Zhang, Jiawei, Bechtel, Hans A, Martin, Michael C, Corder, Stephanie N Gilbert, Hu, Feng, Li, Zheng, Armstrong, Jason N, Wang, Jigang, Liu, Mengkun, Benedict, Jason, Zurek, Eva, Sambandamurthy, Ganapathy, Grossman, Jeffrey C, Zhang, Pengpeng, Ren, Shenqiang
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2021
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article bistability dimerization electronic crystals hidden phases photoexcitation

Beschreibung
Zusammenfassung:	© 2021 Wiley-VCH GmbH. The competing and non-equilibrium phase transitions, involving dynamic tunability of cooperative electronic and magnetic states in strongly correlated materials, show great promise in quantum sensing and information technology. To date, the stabilization of transient states is still in the preliminary stage, particularly with respect to molecular electronic solids. Here, a dynamic and cooperative phase in potassium-7,7,8,8-tetracyanoquinodimethane (K-TCNQ) with the control of pulsed electromagnetic excitation is demonstrated. Simultaneous dynamic and coherent lattice perturbation with 8 ns pulsed laser (532 nm, 15 MW cm-2 , 10 Hz) in such a molecular electronic crystal initiates a stable long-lived (over 400 days) conducting paramagnetic state (≈42 Ωcm), showing the charge-spin bistability over a broad temperature range from 2 to 360 K. Comprehensive noise spectroscopy, in situ high-pressure measurements, electron spin resonance (ESR), theoretical model, and scanning tunneling microscopy/spectroscopy (STM/STS) studies provide further evidence that such a transition is cooperative, requiring a dedicated charge-spin-lattice decoupling to activate and subsequently stabilize nonequilibrium phase. The cooperativity triggered by ultrahigh-strain-rate (above 106 s- 1 ) pulsed excitation offers a collective control toward the generation and stabilization of strongly correlated electronic and magnetic orders in molecular electronic solids and offers unique electro-magnetic phases with technological promises
Beschreibung:	Date Revised 04.10.2021 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202103000