J 2024

A Novel Ferroelectric Rashba Semiconductor

KRIZMAN, Gauthier, Tetiana ZAKUSYLO, Lakshmi SAJEEV, Mahdi HAJLAOUI, Takuya TAKASHIRO et. al.

Basic information

Original name

A Novel Ferroelectric Rashba Semiconductor

Authors

KRIZMAN, Gauthier (guarantor), Tetiana ZAKUSYLO, Lakshmi SAJEEV (356 India, belonging to the institution), Mahdi HAJLAOUI, Takuya TAKASHIRO, Marcin ROSMUS, Natalia OLSZOWSKA, Jacek J. KOŁODZIEJ, Günther BAUER, Ondřej CAHA (203 Czech Republic, belonging to the institution) and Gunther SPRINGHOLZ

Edition

Advanced Materials, Wiley-VCH GmbH, 2024, 0935-9648

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 29.400 in 2022

Organization unit

Faculty of Science

UT WoS

001129221300001

Keywords in English

angle-resolved photoemission spectroscopy; ferroelectricity; IV-VI compounds; phase transition; rashba spin texture; x-ray diffraction

Tags

Tags

International impact, Reviewed
Změněno: 2/4/2024 09:47, Mgr. Marie Šípková, DiS.

Abstract

V originále

Fast, reversible, and low-power manipulation of the spin texture is crucial for next generation spintronic devices like non-volatile bipolar memories, switchable spin current injectors or spin field effect transistors. Ferroelectric Rashba semiconductors (FERSC) are the ideal class of materials for the realization of such devices. Their ferroelectric character enables an electronic control of the Rashba-type spin texture by means of the reversible and switchable polarization. Yet, only very few materials are established to belong to this class of multifunctional materials. Here, Pb1−xGexTe is unraveled as a novel FERSC system down to nanoscale. The ferroelectric phase transition and concomitant lattice distortion are demonstrated by temperature dependent X-ray diffraction, and their effect on electronic properties are measured by angle-resolved photoemission spectroscopy. In few nanometer-thick epitaxial heterostructures, a large Rashba spin-splitting is exhibiting a wide tuning range as a function of temperature and Ge content. This work defines Pb1−xGexTe as a high-potential FERSC system for spintronic applications.

Links

EH22_008/0004572, research and development project
Name: Kvantové materiály pro aplikace v udržitelných technologiích
90251, large research infrastructures
Name: CzechNanoLab II