| Title: |
Electrical manipulation of a single electron spin in CMOS with micromagnet and spin-valley coupling |
| Authors: |
Klemt, Bernhard, El-Homsy, Victor, Nurizzo, Martin, Hamonic, Pierre, Martinez, Biel, Paz, Bruna Cardoso, spence, Cameron, Dartiailh, Matthieu, Jadot, Baptiste, Chanrion, Emmanuel, Thiney, Vivien, Lethiecq, Renan, Bertrand, Benoit, Niebojewski, Heimanu, Bäuerle, Christopher, Vinet, Maud, Niquet, Yann-Michel, Meunier, Tristan, Urdampilleta, Matias |
| Publication Year: |
2023 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Mesoscale and Nanoscale Physics |
| More Details: |
For semiconductor spin qubits, complementary-metal-oxide-semiconductor (CMOS) technology is the ideal candidate for reliable and scalable fabrication. Making the direct leap from academic fabrication to qubits fabricated fully by industrial CMOS standards is difficult without intermediate solutions. With a flexible back-end-of-line (BEOL) new functionalities such as micromagnets or superconducting circuits can be added in a post-CMOS process to study the physics of these devices or achieve proof of concepts. Once the process is established it can be incorporated in the foundry-compatible process flow. Here, we study a single electron spin qubit in a CMOS device with a micromagnet integrated in the flexible BEOL. We exploit the synthetic spin orbit coupling (SOC) to control the qubit via electric field and we investigate the spin-valley physics in the presence of SOC where we show an enhancement of the Rabi frequency at the spin-valley hotspot. Finally, we probe the high frequency noise in the system using dynamical decoupling pulse sequences and demonstrate that charge noise dominates the qubit decoherence in this range.
Comment: 11 pages, 10 figures |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/2303.04960 |
| Accession Number: |
edsarx.2303.04960 |
| Database: |
arXiv |
