Welcome

Our research focuses on designing materials for new electronic, optical, and magnetic functionality using epitaxial layer by layer synthesis. This enables engineering the band gap, polarization, conductivity, and quantum confinement in semiconductors. Currently our research focuses on thermal spintronics (coupling heat flow with spin/magnetic functionality), as well as III-Nitride molecular beam epitaxy of nano-heterostructures, especially semiconductor nanowire hetereostructures. 

Recent Publications and Preprints

  • "Nonlocal Spin Transport Mediated by a Vortex Liquid in Superconductors", Se Kwon Kim, Roberto Myers, and Yaroslav Tserkovnyak, arXiv:1806.07906

  • "Long lifetime of thermally-excited magnons in bulk yttrium iron garnet", John S. Jamison, Zihao Yang, Brandon L. Giles, Jack T. Brangham, Fengyuan Yang, and Roberto C. Myers, arXiv:1803.01054

  • "Nano-Cathodoluminescence Measurement of Asymmetric Carrier Trapping and Radiative Recombination in GaN and InGaN Quantum Disks", Julia I. Deitz, A.T.M. G. Sarwar, Santino D. Carnevale, Tyler J. Grassman, Roberto C. Myers, and David W. McComb, Microscopy and Microanalysis 24, 93 (2018)

  • "Nanoscale Electronic Conditioning for Improvement of Nanowire Light Emitting Diode Efficiency", Brelon J May, Matthew R Belz, Arshad Ahamed, A.T.M. Golam Sarwar, Camelia M Selcu, and Roberto C Myers, ACS Nano 12, 3551 (2018)

  • "Nanoscale current uniformity and injection efficiency of nanowire light emitting diodes",  Brelon J. May, Camelia M. Selcu, A.T.M. G. Sarwar, and Roberto C. Myers, Appl. Phys. Lett. 112, 093107 (2018)

  • "Hexagonal Nanopyramidal Prisms of Nearly Intrinsic InN on Patterned GaN Nanowire Arrays", A.T.M. Golam Sarwar, Benjamin Leung, George T Wang & Roberto C Myers, Cryst. Growth Des. 18, 1191 (2018)

Recent News

May 16, 2018

Brelon May wins the Three Minute Thesis (3MT) competition. See his winning presentation below:

April 26, 2018

Myers awarded Harrison Faculty Award for Excellence in Engineering Education. For innovations in materials synthesis and design leading to breakthrough discoveries in spin-based electronics, spin/thermal effects and polarization engineered nanowire heterostructures.

November 27, 2017

Brelion May was awarded a Presidential Fellowship, which is the most prestigious fellowship given by the Graduate School at OSU, recognizing outstanding scholarship and research ability.

October 26, 2017

Brelon May won outstanding student paper award at the North American Molecular Beam Epitaxy Conference (NAMBE).

July 26, 2017

Welcome to Elline Hettiaratchy who joined the group as a graduate student in Materials Science and Engineering.

July 25, 2017

Congratulations to Dr. Zihao Yang for passing his PhD defense exam!

July 24, 2017

Congratulations to Dr. Brandon Giles for passing his PhD defense exam!

 

 

Past News

October 4, 2016

Brelon May won best presentation award at the 32nd North American Molecular Beam Epitaxy (NAMBE) conference.Fellow student winner Michelle Vaisman, conference chair Professor Gary Wicks, and Brelon May. Photo by Minjoo Larry Lee.

Link: 
 

 

May 13, 2016

Both John Jamison and Brandon Giles won best student poster awards at the IMR Materials Week for each of their posters, "Investigation of the Picosecond Timescales of the Spin-Seebeck Effect in Platinum/Yttrium Iron Garnet Bilayers" and "Temperature Dependence of Magnon Diffusion in Yttrium Iron Garnet (YIG)", respectively.

Ohio State President Michael Drake congratulating the poster award winners.

Link: 
 

 

May 1, 2016

Research work on Nitride nanowire LEDs grown directly on metal foil featured in Semiconductor Today.

Link: 
 

 

March 4, 2016

Myers group receives a Defense University Research Instrumentation Program (DURIP) award from the Army Research Office (ARO). The award will allow construction of a custom scanning magneto-optical microscopy system for exploration of non-linear spin-heat interactions. more information

December 10, 2015

Congratulations to Dr. ATM Golam Sarwar for passing his PhD defense exam!

May 20, 2015

Magnetic field induced phonon scattering article featured on cover of Nature Materials.

 

May 15, 2015

Brelon May won best student poster award for his poster, "Three-Dimensional Lattice Matching for Epitaxially Embedded Nanoparticles", at the IMR Materials Week.

March 25, 2015

Research paper on magnetic sensitivity of phonons featured as top story of Science 360.

December 6, 2014

Our deep ultraviolet nanowire LED work featured in Semiconductor Today.

October 20, 2014

Group research featured in Nanotechnology Lab Talk reporting first deep ultraviolet nanowire based LED.

August 8, 2014

Congratulations to Dr. Thomas Kent for passing his PhD defense exam!

August 1, 2014

Welcome to Emilio Codecido, who joined the group as a Physics graduate student.

May 9, 2014

Video of green nanowire LEDs grown on a molybdenum thin film.

 

May 9, 2014

Zihao Yang won best student poster award for his poster, "Evidence for a charge accumulation layer at the platinum to yttrium iron garnet interface", at the IMR Materials Week.

Sep 1, 2013

Welcome Brelon May and John Jamison, who joined the group as a Materials Science and Engineering graduate students.

August 16, 2013

Congratulations to Dr. Jing Yang for passing her PhD defense exam!

July 10, 2013

Congratulations to Dr. Santino Carnevale for passing his PhD defense exam!

May 10, 2013

Zihao Yang won best student poster award for his poster, "Ferromagnetism and magneto-transport in Gd-doped AlN-GaN two-dimensional electron gases", at the IMR Materials Week.

April 25, 2013

Roberto Myers awarded a Lumley Interdisciplinary Research Award.

March 26, 2013

Video of ultraviolet nanowire LEDs grown on a silicon wafer.  

UV PINLED turn on and blue shift under 36X microscope objective

 

January 16, 2013

Santino Carnevale wins 2012 Electronic Materials Conference "Best Student Presentation" award for his talk, "Polarization-induced pn-diodes in Wide Band Gap Nanowires with Ultraviolet Electroluminescence".

July 16, 2012

Roberto Myers awarded a Lumley Research Award.

July 11, 2012

Giant spin Seebeck research work featured on cover of Nature.

 

July 3, 2012

Welcome Brandon Giles, who joined the group as a Materials Science and Engineering graduate student.

March 2, 2012

College of engineering news article on our polarization-induced pn-diode research,'New Nanowire Diodes Shine Light on the Possibilities of Polarization'.

Sept. 14, 2011

Both Santino Carnevale and Thomas Kent each won best student poster awards for their respective posters, "Three-dimensional wide band gap nanowire heterostructure electronic and photonic devices" and "Embedded ferromagnetic GdN nano-islands in GaN", at the IMR Materials Week.

July 5, 2011

Roberto Myers receives the Faculty Early Career Development (CAREER) Program Award from the National Science Foundation (NSF).

June 6, 2011

Myers group receives a Defense University Research Instrumentation Program (DURIP) award from the Office of Naval Research (ONR). The award will upgrade our optical characterization lab to allow ultrafast optical pump probe spectroscopy of electronic transitions in nanostructures with sub picosecond time resolution. more information

April 5, 2011

Graduate student Santino Carnevale wins a 2011 National Science Foundation Graduate Student Fellowship.