A magnon scattering platform

Journal Article · 14 June 2021 · Proceedings of the National Academy of Sciences of the United States of America

DOI: https://doi.org/10.1073/pnas.2019473118 · OSTI ID:1788305

Zhou, Tony X.  ^[1]; Carmiggelt, Joris J.  ^[2]; Gächter, Lisa M. ^[3]; Esterlis, Ilya ^[4]; Sels, Dries ^[5]; Stöhr, Rainer J.  ^[6]; Du, Chunhui  ^[7]; Fernandez, Daniel ^[4]; Rodriguez-Nieva, Joaquin F. ^[4]; Büttner, Felix  ^[8]; Demler, Eugene ^[4]; Yacoby, Amir ^[1]

---

1. Department of Physics, Harvard University, Cambridge, MA 02138,, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138,
2. Department of Physics, Harvard University, Cambridge, MA 02138,, Department of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands,
3. Department of Physics, Harvard University, Cambridge, MA 02138,, Solid State Physics Laboratory, ETH Zurich, 8093 Zurich, Switzerland,
4. Department of Physics, Harvard University, Cambridge, MA 02138,
5. Department of Physics, New York University, New York, NY 10003,, Center for Computational Quantum Physics, Flatiron Institute, New York, NY 10010,
6. Department of Physics, Harvard University, Cambridge, MA 02138,, Center for Applied Quantum Technology and 3rd Institute of Physics, University of Stuttgart, 70569 Stuttgart, Germany,
7. Department of Physics, Harvard University, Cambridge, MA 02138,, Department of Physics, University of California San Diego, La Jolla, CA 92093,
8. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139

Significance This work describes a general scattering platform that uses magnons to explore the underlying properties of target materials. In this work we show how both phase and amplitude of magnons can be imaged using a nitrogen vacancy center magnetometer and how the scattered pattern of waves can be used to infer geometric and magnetic properties of a target material. To demonstrate this new experimental methodology we use a permalloy disk as our target and show that even with such a simple target unexpected behavior is observed. In addition, we provide a theoretical framework to reconstruct the properties of the target.

• Sponsoring Organization: European Union; Gordon and Betty Moore Foundation; National Science Foundation (NSF); Netherlands Organisation for Scientific Research; US Air Force Office of Scientific Research (AFOSR); US Army Research Office (ARO); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
• Grant/Contract Number: SC0001819; SC0019300
• OSTI ID: 1788305
• Journal Information: Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 25 Vol. 118; ISSN 0027-8424
• Publisher: Proceedings of the National Academy of SciencesCopyright Statement
• Country of Publication: United States
• Language: English