Group Members
I. Group Leader
        II. Current Group Members    III. Former Group Members
         IV. Visitors   V. Scripps (the School of Journalism) Students     VI. Group Photos

I. Group Leader
Dr. Smith in his office Dr. Arthur R. Smith,  Professor

Nanoscale & Quantum Phenomena Institute
Department of Physics & Astronomy
, Ohio University

Contact:
phone (740) 597-2576
fax (740) 593-0433
Email:  smitha2@ohio.edu




                                                        

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II. Current Group Members
Mechanical System Technicians
Doug
                  Shafer
Doug Shafer

Mechanical System Technician

Room: Clippinger 001

Email: shaferd@ohio.edu
Mike Myers
Mike Myers

Mechanical System Technician

Room: Clippinger 001


Email: myersm4@ohio.edu

Todd Koren
Todd Koren

Research Electronic Design Specialist and NQPI Technician

Room: Clippinger 001

Email: koren@ohio.edu

Graduate Students

Sneha Ramesh
                Upadhyay
Sneha Ramesh Upadhyay


1st Year Graduate Student 

Sneha began working in the group in May 2017. She is working in the LT-STM lab. Her first project is setting up a retractable thickness monitor to go inside the MBE chamber, and she is also helping with the PLD system and in setting up a sputter coater to cap samples before coming out of the load lock.

E-mail:  su196516@ohio.edu
Yingqiao Ma Yingqiao Ma


5th Year Graduate Student 

My research interests are studying surface nanostructures, especially magnetic nanostructures based on spin-polarized STM and STS. Currently, I am building a new variable temperature STM and at the same time I am starting experiments on the electronic and magnetic properties of manganese sqrt3 x sqrt3-R30 structures on w-GaN(0001).

E-mail:  ym788111@ohio.edu
 


Undergraduate Students
Kelsey Turner Kelsey Turner

Summer 2018, and continuing ...

Kelsey is working with the AFM/ MFM system along with training to operate the MBE/ SP-STM system. Given some initial challenges with the AFM/ MFM system, she is learning the art of de-bugging. She has also participated in a summer science outreach program for junior high school students.
Alexandra Semposki
Alexandra Semposki

Summer 2017 thru Summer 2018

Alexandra is working on the PLD system and will be depositing and analyzing films. She is also designing a full-fledged PLD chamber capable of multi-layer film growth at elevated or cryogenic substrate temperatures. Her chamber also includes ports for RHEED and a load-lock chamber, as well as the possibility of adding a UHV STM system.


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Information about Former Students

Zakia Alhashem



Zakia
Alhashem

Zakia Alhashem, Ph.D. 2018.
Zakia made careful STM measurements of several different structures during her PhD. work including N-polar GaN(0001) surfaces, MnGa quantum size effect (QSE) islands on N-polar GaN surfaces, and Mn3N2 (010) surfaces. She determined a model structure for the trench-line structure on N-polar GaN which is based on sub-units of the c(6x12) reconstruction, investigated in detail the MnGa QSE islands, and found interesting new phenomena on the Mn3N2 (010) surfaces. Zakia obtained very high resolution images in her experiments. In addition, she also developed procedures for operation of our reflection high energy electron loss spectroscopy (RHEELS) system. Graduating in summer 2018, Zakia returned to Saudi Arabia with her family where she begins her life as a new Assistant Professor at King Faisal University.
Joseph Perry Corbett



Joseph Perry Corbett


Joseph Perry Corbett, Ph.D. 2018.
Perry investigated the properties of MnGa layers grown on Mn3N2 (001) substrates and their interfaces, finding exchange bias as well as perpendicular magnetic anisotropy. He further studied the detailed atomic structure of the MnGa (001) surfaces, finding 2 reconstructions on that surface. Using sp-stm, he investigated the surface of Cr (001) finding evidence for a 2x-reconstructed surface as well as layer-wise antiferromagnetism with at least 3 different in-plane anisotropies. Besides this, he also developed a novel STM tip-etching procedure and fabrication procedures for making effusion cells.


Andrew Foley




Andrew Foley


Andrew Foley, Ph.D. 2017.
Andrew carried out a series of important experiments, making use of our molecular beam epitaxy/low-temperature, spin-polarized STM system. He co-authored a publication in Nano Letters on the topic of native gallium adatoms on the GaN(0001) c(6x12) surface reconstruction. He also carried out a series of experiments aimed at the Ga-polar GaN surface, but his main work concentrated on the study of several phases of manganese nitride including the epsilon, eta, and zeta phases. His studies of epsilon-phase Mn4N have demonstrated its ferrimagnetic properties and perpendicular magnetic anisotropy on top of MgO(001). Andrew determined the key components of the PMA in these Mn4N layers and ultra-thin films.
2) surfaces, and he has carried out important studies of the fundamental magnetic properties of chromium nitride with   several forth-comin

Khan Alam




Khan Alam




Khan Alam, Ph.D. 2016.
Khan carried out investigations of gallium nitride surfaces, chromium nitride layers and surfaces, and Fe/CrN bilayers and Fe islands on CrN surfaces. He has a first author publication in Nano Letters on the topic of native gallium adatoms on GaN(0001) c(6x12). He has several forth-coming articles on topics related to the structural, electronic, and magnetic properties of CrN and Fe/CrN bilayer systems. Khan received his Ph.D. in December 2016 and began a postdoctoral position at the University of Chicago and Argonne National Laboratory.
12) surfaces, and he has carried out important studies of the fundamental magnetic properties of chromium nitride with   several forth-coming

Jack Bruno






Jack Bruno



Summer 2016
Jack took over the pulsed laser deposition system project at the point where Yonry left off. With shop help, he added the necessary gases and gas lines and was able to test fire the laser. He also aligned the laser with a target in the vacuum chamber, and he then pulse laser deposited our first PLD films of Mn, Fe, Cr, and Gd. Jack had the depositions quantified using Rutherford backscattering, and he used that to determine the amount of material deposited per laser pulse for the various materials he studied.
Andrada Mandru






Andrada-Oana Mandru

Andrada Mandru, Ph.D. 2016.
Prior to joining Prof. Smith’s group, Andrada obtained her MS degree from University of Louisiana at Lafayette, where she studied Fe-Ga-Ge magnetostrictive alloys using resonant ultrasound spectroscopy. Andrada’s Ph.D. studies involve a combination of molecular beam epitaxy and scanning tunneling microscopy, used to grow and investigate mainly magnetic samples (like the different phases of ferromagnetic manganese gallium and antiferromagnetic manganese nitrides). These materials are of high technological importance in the fields of spintronics and magnetic recording, when grown on a semiconductor (like gallium nitride) and/or doped with various magnetic atoms (like iron and chromium). After remaining in Athens a few more months as a short term postdoctoral scholar, Andrada took a new postdoctoral position in Switzerland at EMPA - Swiss Federal Laboratories for Materials Science and Technology, located in Dubendorf.
Benjamin Hirt



Benjamin Hirt



Summer 2015
Ben worked on developing a Halbach array, together with Perry Corbett, in order to create a strong permanent magnetic field for application to measurements to be performed on magnetic thin films grown by MBE in our lab.
Yonry Zhu





Yonry Zhu



Summer 2014 and 2015
Yonry worked on our pulsed laser deposition system. He designed and constructed a laser tube incorporating a stepper motor which can raster the laser beam across a target, and he developed a small vacuum chamber system including a target on a rotating stepper motor, a sample holder, a turbo pump, a gauge, and a viewport.
     
        Jeongihm Pak






Jeongihm Pak




Dr. Pak, group member from 2007 to 2015.
Jeongihm was a Research Assistant Professor. In summer 2015, she decided to make a life change and move to Columbus, Ohio with her family, accepting a new job with Chemical Abstracts Service in Columbus Ohio, a division of the American Chemical Society.


        Thomas (Tad) Riley








Thomas Riley







Thomas (Tad) Riley worked in the group for 2 summers (2013 and 2014), working with the AFM/MFM system.
Hamad Al-Brithen
Hamad Al-Brithen
Hamad Al-Brithen, Ph.D. 2004. 
Hamad and his family live in Saudia Arabia where he is a Professor in the Physics and Astronomy Department at King Saud University, and also associated with the King Abdulah Institute for Nanotechnology at the same University as well as the National Center for Nano Technology at King Abdulaziz City for Science and Technology, all in Riyadh.
Costel Constantin
Costel Constantin
Costel Constantin, Ph.D. 2005. 
Costel is an Associate Professor of Physics at James Madison University in Harrisonburg, VA, where he lives with his wife Anca (also an Associate Professor at JMU, in Astrophysics) and daughter Mia.  Costel focuses his research interests on understanding the thermal, electrical, and structural properties of surface-engineered complex materials.
Muhammad Haider
Muhammad Haider

Muhammad Baseer Haider, Ph.D. 2005. 
Muhammad lives with his wife and their 2 children in Dhahran, Saudia Arabia where he is an Assistant Professor of Physics at King Fahd University of Petroleum and Minerals (KFUPM). Prior to his appointment at KFUPM in 2009, he worked as a postdoctoral fellow under a joint appointment of the University of Alberta and the National Institute for Nanotechnology, Edmonton, Canada.


Rong Yang






Rong Yang



Rong Yang, Ph.D. 2006.
Rong lives in Beijing with her husband Wei and son Lingyu and is a full professor at the National Center for Nanoscience & Technology, China. She is working on the interdisciplinary research linking materials, physics, chemistry and biology. Her research includes preparation, characterization and biomedical applications of semiconductor nanomaterials. She has published more than 40 papers in academic journals such as Phys. Rev. B, Phys. Rev. Lett., Appl. Phys. Lett., ACS Nano, and ACS Appl. Mat. Interface.

Haiqiang Yang





Haiqiang Yang







Postdoc ('00-'02)
Erdong Lu






Erdong Lu






P
ostdoc ('04-'07)
 Yinghao Liu






Yinghao Liu







P
ostdoc ('08-'10)

Wenzhi Lin

 

 

 

Wenzhi Lin




Wenzhi Lin, Ph.D. 2011.
Wenzhi and his family live in Los Alamos, New Mexico. Wenzhi is presently a postdoctoral research associate at Los Alamos National Laboratory. His research interest is focused on using scanning tunneling microscopy and spectroscopy to explore photophysics of semiconductor nanocrystals with an emphasis on applications in solar energy conversion and light-emitting devices.

Kangkang Wang

 

 

 


Kangkang Wang





Kangkang Wang, Ph.D. 2011.
Kangkang currently lives in the San Francisco bay area and works at Seagate Technology. At Seagate, Kangkang is working towards extending the magnetic recording technology into the future, by focusing on the magnetic characterization of media and studying the recording physics.



Abhijit Chinchore

 

 

 

 
Abhijit Chinchore

 

Abhijit Vijay Chinchore, PhD 2011.
Abhijit works in Intel as Logic Technology Development Engineer. Intel's 'Product Technology Development' center is located in Hillsboro, Oregon, this is where all the research and the initial development for the next generation chips takes place. It is here that Engineers test their knowledge and abilities to challenge the physical limits to attain the next rung in the Moore's law ladder. Oregon offers an incredible platform for outdoors enthusiasts like Abhijit. The Cascade's offer beautiful scenic views all throughout the year. They serve as skiing grounds in winter and hiking trails in the summer. The coastline is equally beautiful, the scenic highway that runs alongside the pacific coastline offers heavenly views.
        Meng Shi





Meng Shi






M.S. Physics, Summer '13

Tianjiao Chen

 

 


 

Tianjiao Chen



 

Tianjiao Chen, B.S. Physics & B.E. Mechanical Engineering, 2011.  Tianjiao went on to obtain her M.S. in Mechanical Engineering, graduating from MIT in 2013. She has a patent for a rotary-bed reactor design that applies the chemical looping combustion technology.  She currently lives in Wilton, CT and is a design engineer working for ASML, a major provider of lithography systems for the semiconductor industry.

Daniel Bergman

 

 

 

 Daniel Bergman





Daniel Bergman, Bachelors of Applied Physics 2011.  After graduating from Ohio University Daniel went to the University of Toledo and acquired a Masters of Science Professional of Photovoltaics degree in 2013.  He currently lives in Toledo with his fiance and works at First Solar in their Quality and Reliability department testing the long term reliability of their thin film solar module.
Alan Savage






Alan Savage










B.S. Physics,  May '13

Ohio State University Graduate School,  Sep. '13


 



SooHyun Huang

 







B.S. Physics

 

Jeremy Denison

 

 

 
Jeremy Dennison

 

 


Former Mechanical System Technician,  Jan. '12



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IV. Visitors
Visiting Scholars and Students
Rodrigo Ponce Perez
Rodrigo Ponce Perez

Visiting Graduate Student,  September 2015 - August 2016
(from Centro de Nanociencias y Nanotecnologia, Universidad Nacional Autonoma de Mexico)

E-mail:  guerrero@ifuap.buap.mx
Jonathan
                  Guerrero Sanchez Jonathan Guerrero Sanchez

Visiting Graduate Student,  September 2013 - August 2014
(from Centro de Nanociencias y Nanotecnologia, Universidad Nacional Autonoma de Mexico)

E-mail:  guerrero@ifuap.buap.mx
Reyes
                  Garcia-Diaz Reyes Garcia-Diaz

Visiting Graduate Student,  September 2011 - August 2012
(from Centro de Nanociencias y Nanotecnologia, Universidad Nacional Autonoma de Mexico)

E-mail:  reyesgd@ifuap.buap.mx
Milo Swinkels Milo Swinkels

Visiting Graduate Student,  Fall 2011
(from Technische Universiteit Eindhoven, Netherlands)


Research Interest:
Nanophotonics, Quantum Electrodynamics, Atomic Layer Growth

Email: m.y.swinkels@student.tue.nl
Noboru
                  Takeuchi
Dr. Noboru Takeuchi, Professor

Collaborator, Visiting Scholar, September 2010 - August 2011
(from
Centro de Nanociencias y Nanotecnologia, Universidad Nacional Autonoma de Mexico)

Email: takeuchi@cnyn.unam.mx
 
Link to Personal Webpage

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Angie Faller
'13-'14
Emma Dean  '12-'13
Ben White  '11-'12
Audrey Rabalais  '10-'11
Alyse Zimmer
'09-'10
Jenna Miller
'09-'10
Amy Wright
'08-'09
Emily Hubbell
'08-'10
Kristina Davis
'07-'08
Stephanie Laird
'07-'08
Liz Leitch
'06-'07
Sam Stephens
'05-'06
Christopher Gohlke
'05-'06
Suzanne Wilder
'04-'05
Lauren Van Arsdale
'04-'05
Elizabeth Weinstein
'04-'05
Sarah Laubacher
'03-'05
Anita Martin
'03-'04



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