Band alignment engineering of a Ruddlesden–Popper perovskite-based heterostructure constructed using Cs2SnI2Cl2 and α-In2Se3: The effects of ferroelectric polarization switching and electric fields

2021 ◽  
Vol 119 (18) ◽  
pp. 182903
Author(s):  
Cheng-Sheng Liao ◽  
Yu-Feng Ding ◽  
Yu-Qing Zhao ◽  
Meng-Qiu Cai
Keyword(s):  
Electric Fields ◽  
Polarization Switching ◽  
Band Alignment ◽  
Ferroelectric Polarization

Ferroelectric Polarization Switching in Sodium Nitrite

1963 ◽  
Vol 18 (8) ◽  
pp. 1229-1230 ◽  
Author(s):  
Ichiro Hatta ◽  
Shozo Sawada ◽  
Yohko Asao ◽  
Taketoshi Yanagi
Keyword(s):  
Sodium Nitrite ◽  
Polarization Switching ◽  
Ferroelectric Polarization

Rashba Effect and Beating Patterns in the THz Magneto-Photoresponse of a HgTe-Based Two-Dimensional Electron Gas

2015 ◽  
Vol 24 (01n02) ◽  
pp. 1520003
Author(s):  
M. Pakmehr ◽  
C. Brüne ◽  
H. Buhmann ◽  
L. W. Molenkamp ◽  
B. D. McCombe
Keyword(s):  
Quantum Wells ◽  
Electric Fields ◽  
Electron Gas ◽  
Band Alignment ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Energy Formula ◽  
Electronic Dispersion ◽  
Dimensional Electron Gas

HgTe quantum wells with a gapped single Dirac cone electronic dispersion relation have been investigated by THz magneto-photoresponse (PR) and magneto-transport measurements. The QW sample has the conventional band alignment with the well thickness (6.1 nm) slightly smaller than the critical thickness for the topological phase transition. The effective gap of this structure is roughly 10 meV, and the large sheet density ([Formula: see text] m-2) of the two-dimensional electron gas (2DEG) results in a very large Fermi energy ([Formula: see text] meV). We have found several interesting effects at these high densities. In this paper we focus on an observed beating of quantum oscillations in the PR signal (at 1.83 THz) and compare it with direct measurements of oscillations in the longitudinal magneto-resistance (Rxx). The mechanism for the PR is cyclotron resonance absorption heating of the electrons (an electron bolometric effect). We attribute the beating to Rashba splitting of the spin states, which is barely observable in direct Rxx measurements under strong gate-induced electric fields.

scholarly journals Two-Dimensional Semiconductor Heterojunctions for Optoelectronics and Electronics

2021 ◽  
Vol 9 ◽  
Author(s):  
Qian Wang ◽  
Lin Zhang ◽  
Xuejuan Liu ◽  
Sha Li
Keyword(s):  
Electric Fields ◽  
Chemical Properties ◽  
Band Alignment ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Layered Semiconductors ◽  
Future Developments ◽  
Device Applications ◽  
Physical And Chemical ◽  
And Chemical Properties

Two-dimensional (2D) layered semiconductors are current research hotspots on account of their wide variety of applications in electronics and optoelectronics due to their particular ultrathin nature. In this review, the band alignment engineering in heterojunctions composed of 2D van der Waals (vdW) layered semiconductors and their device applications in optoelectronics are provided. Various approaches that induced adjustability of vdW heterojunctions are summarized, mainly including composition and thickness modulations, strain, and electric fields. Furthermore, their perspectives on future developments in optoelectronics and electronics devices based on the newly unique physical and chemical properties are outlined.

Theoretical investigation of nonvolatile electrical control behavior by ferroelectric polarization switching in two-dimensional MnCl3/CuInP2S6 van der Waals heterostructures

2020 ◽  
Vol 8 (13) ◽  
pp. 4534-4541 ◽  
Author(s):  
Zheng Li ◽  
Baozeng Zhou
Keyword(s):  
Theoretical Investigation ◽  
Van Der Waals ◽  
Polarization Switching ◽  
Ferroelectric Polarization ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Electrical Control ◽  
Control Behavior ◽  
Electric Signals ◽  
Data Reading

A model of atom-thick multiferroic memory whose data writing depends on ferroelectric CuInP2S6 and data reading is based on different electric signals induced by magnetoelectrical coupling.

scholarly journals Polar columnar assemblies of subphthalocyanines

2020 ◽  
Vol 24 (01n03) ◽  
pp. 33-42
Author(s):  
Maria J. Mayoral ◽  
Tomás Torres ◽  
David González-Rodríguez
Keyword(s):  
Electric Fields ◽  
Liquid Crystalline ◽  
Review Article ◽  
Ferroelectric Polarization ◽  
Crystalline Materials ◽  
Self Assembled ◽  
Liquid Crystalline Materials

In this small review article, we provide an overview of the different self-assembled systems and materials created so far by rationally organizing fluorosubphthalocyanines in a non-centrosymmetric fashion, which allows access to novel polarly ordered liquid crystalline materials that can be aligned in the presence of electric fields and that exhibit permanent or switchable ([Formula: see text] ferroelectric) polarization.

Mechano-ferroelectric coupling: stabilization enhancement and polarization switching in bent AgBiP2Se6 monolayers

2021 ◽  
Author(s):  
Jing Shang ◽  
Congxin Xia ◽  
Chun Tang ◽  
Chun Li ◽  
Yandong Ma ◽  
...  
Keyword(s):  
Polarization Switching ◽  
Ferroelectric Polarization ◽  
Two Dimensional ◽  
Next Generation ◽  
Storage Devices

Two-dimensional ferroelectrics are core candidates for the development of next-generation non-volatile storage devices, which rely highly on ferroelectric stability and feasible approaches to manipulate the ferroelectric polarization and domain.

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