Welcome!

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 electronic band structure are my guiding interests. An example system is a “skyrmion crystal”, where the magnetization on an atomic lattice forms a stable superstructure of topological defects with spins that point in every direction on the unit sphere. The same mathematical object can appear in a different context ("momentum space" in physics-speak) and lead to a new phase of matter called Weyl semimetals. Besides their fundamental import, the diverse class of topological materials have potential for futuristic applications ranging from improved magnetic memory to novel spintronic devices due to their robustness to certain kinds of disorder. I am also active in the development of pump-probe techniques for neutron scattering, which would open an exciting new way of exploring the non-equilibrium properties quantum materials. Stay tuned for several forthcoming publications on these topics! 
(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 measuring knotted vortices in 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

Contact: 

Recent Updates

  • Forbes 30 Under 30 Summit: Israel Following the composition of the Forbes 30 Under 30 in Science and other categories, the Forbes Summit Group hosts a conference with attendees culled from awardees, mentors, and relevant public ...
    Posted Jan 10, 2016, 9:47 AM by Guy Marcus
  • Invited talk: Connecting exotic magnetism with electronic bandstructure I will be visiting MIT this Tuesday to deliver a talk for the Gedik Group about my ongoing work using neutron scattering to disentangle complex magnetic structures. CeAuSb2 represents ...
    Posted Dec 6, 2015, 5:52 PM by Guy Marcus
  • 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
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