I am an NSF Graduate Research Fellow in the Institute for Quantum Matter at The Johns Hopkins University where I am working towards a PhD in Physics with Professor Collin L. Broholm. We use neutron scattering, complemented by theory and other experimental techniques, to understand how magnetic and electronic structure influence the dynamical properties of quantum materials

Topological properties of magnetism and band structure are my guiding interests. I am currently focused on skyrmion crystals, where the magnetization forms a stable superstructure of topological defects with spins that point in every direction on the unit sphere.  Skyrmions constitute an intriguing, new phase of topological matter now seen in both metals and insulators. Besides their fundamental import, they have great potential for applications in magnetic memory and other spintronic devices. I am also working closely with colleagues to develop new techniques for time-resolved neutron scattering with resolution less than 100µs, which would open an exciting new way of exploring quantum materials with accessible time-scales. For more details about my past and present work, please refer to my Research page.

My undergraduate work at Wesleyan University ranged from experimental fluid dynamics to topics in theoretical ion trap physics, both of which I discuss in this interview. My experimental work in fluid dynamics, cited for the APS Leroy Apker Award, demonstrated novel measurements of the rotational dynamics of anisotropic particles that I designed and fabricated using 3D printing. The new class of techniques we introduced for measuring Lagrangian statistics of ellipsoidal particles may also have exciting applications in topological fluid dynamics.

I remain connected to the role science plays in society through outreach to local schools and by contributing articles as an independent science consultant to OZY.com


Recent Updates

  • Recent paper chosen as 'Highlight of 2014' Our recent paper in the New Journal of Physics has been chosen as a 'Highlight of 2014'.To see related work under active development, you may visit the homepage of ...
    Posted Feb 26, 2015, 7:14 PM by Guy Marcus
  • CeAuSb2 at the 2015 APS March Meeting Come check out my talk at the APS March Meeting on Wednesday March 4th, 2015 during session Q22 at 4:30 PM in Room 202A. I will discuss recent results ...
    Posted Feb 26, 2015, 6:44 PM by Guy Marcus
  • Measurements of the solid-body rotation of anisotropic particles in 3D turbulence Check out my latest article that was just published as a Fast Track Communication in New Journal of Physics. We designed and fabricated millimeter scale anisotropic particles using 3D printing ...
    Posted Oct 13, 2014, 4:55 PM by Guy Marcus
  • March Meeting: Apker Award Lecture I will be at the APS March Meeting in Denver this week. My talk is in session M40 at 1:03 PM on Wednesday. You can view my slides by ...
    Posted Mar 18, 2014, 8:10 AM by Guy Marcus
  • "Understanding the Chain Fountain" I've written my first piece for OZY.com, a fresh news site that aims to bring you only the most exciting stories with a unique spin. I will contribute ...
    Posted Feb 26, 2014, 4:17 AM by Guy Marcus
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