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About me

     I began my scientific training at my home state school of Arizona State University, where, as a young student, I first engaged in condensed matter physics research under the tutelage of Dr. Nicole Herbots. Upon the completion of a B.S. in Physics and a B.A. in Philosophy from ASU in 2017, I wanted to pursue further studies in solid state physics and was accepted into the physics Ph.D. program at the University of California Santa Cruz.

     While at UCSC, I worked in the lab of Professor David Lederman performing thin film crystal growth and crystallographic, magnetic, and electronic characterization of thin film crystals. In 2024 I successfully defended my Ph.D. thesis, in which I studied antiferromagnetic insulators and topological insulators. Among my proudest achievements from my Ph.D. work were growing novel antiferromagnetic insulator - topological insulator heterostructures and implementing topological Dirac fermion theory to model transport behavior in topological insulators for the first time. 

     After receiving my Ph.D. in physics from UCSC, I moved to the Washington D.C. metropolitan area to accept a position at the Laboratory for Physical Sciences, a partner research facility between the National Security Agency and the University of Maryland, as a postdoctoral associate. At LPS I am a member of the Advanced Manufacturing and Sensing group under Dr. Adam Friedman, conducting research in the national strategic priorities of next generation engineering materials, novel sensing, and advanced manufacturing.

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First author peer-reviewed publications

Suppressed weak anti-localization in topological insulator - antiferromagnetic insulator (BiSb)2Te3 - MnF2 thin film bilayers

Ryan Van Haren and David Lederman
Phys. Rev. B 110, 205409

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Emergent magnetic phases and piezomagnetic effects in MnxNi1−xF2 thin film alloys

Ryan Van Haren, Nessa Hald, and David Lederman
Phys. Rev. B 108, 134437

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Surface state mediated ferromagnetism in Mn0.14Bi1.86Te3 thin films

Ryan Van Haren, Toyanath Joshi, and David Lederman
Phys. Rev. Materials 7, 034201

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More peer-reviewed publications

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Direct visualization of relativistic quantum scars in graphene quantum dots

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Google scholar link

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