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Our YIG/Pt dynamic imaging paper is out at Phys. Rev. Applied

Our paper “Imaging Magnetization Structure and Dynamics in Ultrathin Y3Fe5O12/Pt Bilayers with High Sensitivity Using the Time-Resolved Longitudinal Spin Seebeck Effect” by Jason M. Bartell, Colin L. Jermain, Sriharsha V. Aradhya, Jack T. Brangham, Fengyuan Yang, Daniel C. Ralph, and Gregory D. Fuchs is now out at Physical Review Applied.

Fuchs Group talks at the APS March meeting

We have a several exciting talks at the March meeting this year – come see some of them!

  • E47.00013: Greg Fuchs – Nanoscale magnetic imaging using picosecond thermal gradients (invited).
  • F50.00013: Isaiah Gray – Spatiotemporally resolved mangetic dynamics in B20 chiral FeGe.
  • L28.00001: Nick Jungwirth – Single quantum defects in h-BN and ZnO (invited).
  • R13.00008: Evan MacQuarrie – Cooling a mechanical resonator with a nitrogen-vacancy center ensemble using a room temperature excited state spin-strain interaction
  • S47.00007: Jason Bartell – Sensitive imaging of magnetization structure and dynamics using picosecond laser heating

Congratulations Dr. MacQuarrie!

Congratulations to Evan MacQuarrie for defending his Ph.D. Thesis “Controlling Nitrogren-Vacancy Center Spins with a Mechanical Resonator.”

Our excited-state mechanical cooling paper is out on arXiv

Our paper “Cooling a Mechanical Resonator with a Nitrogen-Vacancy Center Ensemble Using a Room Temperature Excited State Spin-Strain Interaction” by E. R. MacQuarrie, M. Otten, S. K. Gray, and G. D. Fuchs is now availible on the arXiv.

In this work we experimentally demonstrate a previously unstudied spin-strain interaction in the nitrogen-vacancy (NV) center excited state at room temperature, and theoretically show that it enables cooling of a diamond mechanical resonator using an embedded NV center ensemble.

Our single h-BN defects paper is now posted to arXiv

Our manuscript “Temperature Dependence of Wavelength Selectable Zero-Phonon Emission from Single Defects in Hexagonal Boron Nitride” by Nicholas R. Jungwirth, Brian Calderon, Yanxin Ji, Michael G. Spencer, Michael E. Flatté, and Gregory D. Fuchs is now posted to the arXiv.

In this paper we characterize the emission wavelengths of sharp, zero-phonon emission of quantum emission from single defects in h-BN.  We also study the temperature dependance of the zero phonon lines from two defects, and model the linewidth broadening as interactions with low-frequency phonon in the h-BN sheet of the defect.