Quantum Transport through a Quantum Dot Coupled to Majorana Nanowire and Two Ferromagnets with Noncollinear Magnetizations.

Yu-Mei Gao, Yao-Hong Shen, Feng Chi, Zi-Chuan Yi, Li-Ming Liu

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Article in Nanomaterials (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Yu-Mei GaoSchool of Electronic and Information Engineering, UEST of China, Zhongshan Institute, Zhongshan 528400, China.

Yao-Hong ShenSouth China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China.

Feng ChiSchool of Electronic and Information Engineering, UEST of China, Zhongshan Institute, Zhongshan 528400, China.

Zi-Chuan YiSchool of Electronic and Information Engineering, UEST of China, Zhongshan Institute, Zhongshan 528400, China.ORCID 0000-0001-7670-7916

Li-Ming LiuSchool of Electronic and Information Engineering, UEST of China, Zhongshan Institute, Zhongshan 528400, China.

Funding

Department of Education in Guang-dong Province 2023GXJK542Department of Education in Guang-dong Province SJD202302;2021KCXTD040; 2023KTSCX174;2023KSYS011;2023B2035

6 · The paper itself

Abstract

We study the electron tunneling (ET) and local Andreev reflection (AR) processes in a quantum dot (QD) coupled to the left and right ferromagnetic leads with noncollinear ferromagnetisms. In particular, we consider that the QD is also side-coupled to a nanowire hosting Majorana bound states (MBSs) at its ends. Our results show that when one mode of the MBSs is coupled simultaneously to both spin-up and spin-down electrons on the QD, the height of the central peak is different from that if the MBS is coupled to only one spin component electrons. The ET and AR conductances, which are mediated by the dot-MBS hybridization, strongly depend on the angle between the left and right magnetic moments in the leads. Interaction between the QD and the MBSs will result in sign change of the angle-dependent tunnel magnetoresistance. This is very different from the case when the QD is coupled to regular fermonic mode, and can be used for detecting the existence of MBSs, a current challenge in condensed matter physics under extensive investigations.

Indexed as

ferromagnetic leadsMajorana bound statesnoncollinear magnetizationsquantum dotquantum transporttunnel magnetoresistance

Identifiers

PMID39057886

DOI10.3390/nano14141210

PMCPMC11279510

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.