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Julius de Rojas

(he/him/his)

Assistant Professor

Physics

Orcid identifier0000-0002-1206-4744
  • Assistant Professor
    Physics
  • 405-744-1611 (Work)
  • Oklahoma State University, Physics, 225 Physical Sciences Building, Stillwater, Oklahoma, 74078, United States

BIO & RESEARCH INTERESTs

Quick BIo:

Hi! I'm an experimentalist working in the field of condensed matter physics. I'm generally interested in studying complex, nanoscale metamaterials with potential applications in future information technologies.

 

I received my BS in Physics from UCLA, followed by a PhD in Physics at UC Davis under the supervision of Kai Liu, focusing on high anisotropy magnetic materials. I then moved to the Universitat Autònoma de Barcelona (UAB) in Spain to study energy efficient magnetoelectric materials as a postdoc in the Gnm3 group led by Jordi Sort. I followed this with a postdoc at Durham University in England as a member of Adekunle Adeyeye's NanoMagnonics group, where I investigated artificial spin ice structures for microwave and magnonic applications. I've been building the Adaptive Magnetic Metamaterials Group at Oklahoma State since Fall 2023. 

 

Research Interests:

I'm generally interested in new, collective behavior in magnetic systems driven by the interplay between geometric curvature, interfacial coupling, and magnetic order. My lab's expertise is focused on advanced nanofabrication and spectrocopy techniques. My current interests include:

 

  • Magnonics: We study magnetic excitations (spin-waves or 'magnons') in engineered metamaterials operating in the GHz-THz range, with potential applications in adaptive computing and 6G communication.
  • Artificial Spin Ice: We use periodic arrays of ferromagnetic nanomagnets as a sandbox for understanding geometric frustration, order, entropy, and phase transitions. They can also serve as a platfrom for in materia neuromorphic computing,
  • Magnetoelectrics: We explore how layered heterostructures can offer low-power coupling between an applied electric field and magnetic propoerties. Our lab focuses on ionic conductors and ferroelectric materials coupled to magnetic layers in spintronic devices.

OKLAHOMA STATE UNIVERSITY APPOINTMENTS

  • Assistant Professor
    Oklahoma State University, Physics, Stillwater, Oklahoma, United States1 Aug 2023 - present

OKLAHOMA STATE UNIVERSITY GROUPS MEMBERSHIP

ACADEMIC POSITIONS

  • Postdoctoral Research Associate
    Durham University, Physics, Durham, United Kingdom1 Nov 2021 - 31 Jul 2023
  • Postdoctoral Research Associate
    Autonomous University of Barcelona, Physics, Cerdanyola del Vallès, Spain15 Mar 2019 - 31 Oct 2021

DEGREES

  • Doctor of Philosophy, Physics
    University of California, Davis, United States
  • Bachelor of Science, Physics
    University of California, Los Angeles, United States

CAMPUS

  • Oklahoma State University - Stillwater

AVAILABILITY

  • Collaborative projects
  • Media inquiries
  • Industry projects
  • Undergraduate research supervision

FIELDS OF RESEARCH