公开(公告)号：US11802921B2

公开(公告)日：2023-10-31

申请号：US17538007

申请日：2021-11-30

Applicant: Purdue Research Foundation

Inventor： Vladimir M. Shalaev ,  Pramey Upadhyaya ,  Abhishek Bharatbhai Solanki ,  Simeon I. Bogdanov ,  Yong P. Chen ,  Mohammad Mushfiqur Rahman ,  Avinash Rustagi

IPC: G01R33/02 ,  H10N50/80 ,  H10N50/85

CPC classification number: G01R33/02 ,  H10N50/80 ,  H10N50/85

Abstract: A nanodevice provides for electric-field control of magnon-QSD interactions. The nanodevice includes a ferroelectric substrate, a ferromagnetic material disposed over the ferroelectric substrate, and a nanodiamond including an ensemble of nitrogen-vacancy (NV) spins, each NV magnetically interfacing with the ferromagnetic material. An electric field is measured by applying a voltage across the ferroelectric substrate and the ferromagnetic material, changing a magnon excitation spectrum of the ferromagnetic material with respect to an electron spin resonance frequency of the ensemble of NV spins, and measuring a relaxation rate of the ensemble of NV spins.

公开(公告)号：US20240045002A1

公开(公告)日：2024-02-08

申请号：US18380091

申请日：2023-10-13

Applicant: Purdue Research Foundation

Inventor： Vladimir M. Shalaev ,  Pramey Upadhyaya ,  Abhishek Bharatbhai Solanki ,  Simeon I. Bogdanov ,  Yong P. Chen ,  Mohammad Mushfiqur Rahman ,  Avinash Rustagi

IPC: G01R33/02 ,  H10N50/85 ,  H10N50/80

CPC classification number: G01R33/02 ,  H10N50/85 ,  H10N50/80

Abstract: A nanodevice provides for electric-field control of magnon-QSD interactions. The nanodevice includes a ferroelectric substrate, a ferromagnetic material disposed over the ferroelectric substrate, and a nanodiamond including an ensemble of nitrogen-vacancy (NV) spins, each NV magnetically interfacing with the ferromagnetic material. An electric field is measured by applying a voltage across the ferroelectric substrate and the ferromagnetic material, changing a magnon excitation spectrum of the ferromagnetic material with respect to an electron spin resonance frequency of the ensemble of NV spins, and measuring a relaxation rate of the ensemble of NV spins.

公开(公告)号：US20220171000A1

公开(公告)日：2022-06-02

申请号：US17538007

申请日：2021-11-30

Applicant: Purdue Research Foundation

Inventor： Vladimir M. Shalaev ,  Pramey Upadhyaya ,  Abhishek Bharatbhai Solanki ,  Simeon I. Bogdanov ,  Yong P. Chen ,  Mohammad Mushfiqur Rahman ,  Avinash Rustagi

IPC: G01R33/02 ,  H01L43/02 ,  H01L43/10

Abstract: A nanodevice provides for electric-field control of magnon-QSD interactions. The nanodevice includes a ferroelectric substrate, a ferromagnetic material disposed over the ferroelectric substrate, and a nanodiamond including an ensemble of nitrogen-vacancy (NV) spins, each NV magnetically interfacing with the ferromagnetic material. An electric field is measured by applying a voltage across the ferroelectric substrate and the ferromagnetic material, changing a magnon excitation spectrum of the ferromagnetic material with respect to an electron spin resonance frequency of the ensemble of NV spins, and measuring a relaxation rate of the ensemble of NV spins.