Polarization-Sensitive Photothermoelectric Response Based on In-Plane Anisotropic Antiferromagnetic Semiconductor CrSBr

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932223" target="_blank" >RIV/60461373:22310/25:43932223 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsphotonics.5c00065" target="_blank" >https://pubs.acs.org/doi/10.1021/acsphotonics.5c00065</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsphotonics.5c00065" target="_blank" >10.1021/acsphotonics.5c00065</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polarization-Sensitive Photothermoelectric Response Based on In-Plane Anisotropic Antiferromagnetic Semiconductor CrSBr

Popis výsledku v původním jazyce

Two-dimensional (2D) magnetic materials are driving plenty of attention due to their scientific and technological significance. In-plane anisotropy in such a system further broadens their application areas especially in various angle-resolved functional devices. Here, we report an air-stable 2D antiferromagnetic semiconductor (CrSBr) with a strong intrinsic optical and optoelectronic in-plane anisotropy. First, the results of polarization absorption spectra demonstrate the presence of a linear dichroism (LD) transition in CrSBr, which shows consistency with our density functional theory (DFT) calculations. Besides, representative angle-resolved reflection and refraction in CrSBr flakes have been further characterized, indicating their anisotropic light-matter interactions. Moreover, a polarized photodetector based on the photothermoelectric (PTE) effect mechanism is fabricated successfully, with the dichroic ratio of I p-max/I p-min as measured up to 2.26 under 850 nm excitation. These results indicate a promising potential to advance the application of 2D van der Waals magnetic materials in polarization-sensitive optics, optoelectronic devices, and opto-spintronics.

Název v anglickém jazyce

Polarization-Sensitive Photothermoelectric Response Based on In-Plane Anisotropic Antiferromagnetic Semiconductor CrSBr

Popis výsledku anglicky

Two-dimensional (2D) magnetic materials are driving plenty of attention due to their scientific and technological significance. In-plane anisotropy in such a system further broadens their application areas especially in various angle-resolved functional devices. Here, we report an air-stable 2D antiferromagnetic semiconductor (CrSBr) with a strong intrinsic optical and optoelectronic in-plane anisotropy. First, the results of polarization absorption spectra demonstrate the presence of a linear dichroism (LD) transition in CrSBr, which shows consistency with our density functional theory (DFT) calculations. Besides, representative angle-resolved reflection and refraction in CrSBr flakes have been further characterized, indicating their anisotropic light-matter interactions. Moreover, a polarized photodetector based on the photothermoelectric (PTE) effect mechanism is fabricated successfully, with the dichroic ratio of I p-max/I p-min as measured up to 2.26 under 850 nm excitation. These results indicate a promising potential to advance the application of 2D van der Waals magnetic materials in polarization-sensitive optics, optoelectronic devices, and opto-spintronics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS Photonics

ISSN

2330-4022

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

2595-2603

Kód UT WoS článku

001479262600001

EID výsledku v databázi Scopus

2-s2.0-105004053728