Science Student Research
Science Student Research
Congratulations to our own Ellianna Schwab for being a winner of the Chambliss Astronomy Achievement Student Award poster competition! The Astronomy Achievement Student Awards are given to recognize exemplary research by undergraduate and graduate students who present at one of the poster sessions at the meetings of the American Astronomical Society. Awardees are honored with a Chambliss medal or, in the case of honorable mention, a certificate. The presentations were during the 227th Meeting: 4–8 January 2016, in Kissimmee, Florida.
CCNY Physics at the American Physical Society March Meeting
2016 Monday–Friday, March 14–18, 2016; Baltimore, Maryland
William Mayer, Jesse Kanter, Sergey Vitkalov (City College of New York, CUNY Graduate Center), Alexey Bykov (Institute of Semiconductor Physics, Novosibirsk, Russia)
Magneto-Inter-Subband Oscillations in GaAs quantum wells with three populated subbands placed in tilted magnetic fields.
William Mayer has made presentation of his research in condensed matter physics. The magnetotransport of highly mobile two-dimensional electrons in wide GaAs single quantum wells with three populated subbands placed in tilted magnetic fields is studied. The bottoms of the lower two subbands have nearly the same energy while the bottom of the third subband has a much higher energy (E1 ≈ E2 <<E3). At zero in-plane magnetic fields, magnetointersubband oscillations (MISO) between the ith and j th subbands are observed. An application of in-plane magnetic field produces dramatic changes in MISO and the corresponding electron spectrum. At small perpendicular magnetic fields the semiclassical regime of electron propagation is identified. In contrast, at strong magnetic fields relatively weak oscillating variations of the electron spectrum with the in-plane magnetic field are observed. At intermediate magnetic fields, the electron spectrum undergoes a transition between these two regimes through magnetic breakdown. In this transition regime MISO with odd quantum number k terminate, while MISO corresponding to even k evolve continuously into the high-field regime. These results are published in Physical Review B 93,115309 (2016).
Session S51: Thermodynamic & Transport Properties of Semiconductors
Jesse Kanter (The Graduate Center, City College, CUNY);Francesca Arese Lucini (Graduate Center, CCNY CUNY); Alexandra Duboy (The Graduate Center, City College, CUNY); T.D. Mishima (Univ. of Oklahoma); M.B. Santos (Univ. of Oklahoma); Javad Shabani (Graduate Center, CCNY CUNY) Quantum Hall states in strained InAs heterostructures
In a recent development it was realized that non-Abelian quasiparticles, parafermion zero-modes emerge at an interface between a superconductor and two dimensional electron system (2DES) in the quantum Hall regime. . Unlike widely used GaAs systems, surface level pinning in InAs could allow for fabrication of transparent contacts to superconductors. However, no fractional quantum Hall state has been observed in InAs quantum wells so far. Whether this is due to the type of disorder present in the quantum well is not clear. In this work, we study the transport and dingle mobility of 2DESs confined to strained InAs quantum wells as a function of electron density and spacer thickness to the surface. We compare our results to early observation of fractional quantum Hall states in GaAs.  R. S. K. Mong, et al. Phys. Rev. X 4, 011036 (2014)
Session F51: 2DEG and Quantum Hall Effect
Jacob Henshaw (The Graduate Center, City College, CUN); Carlos Meriles (Graduate Center, CCNY CUNY) No title
The nitrogen-vacancy (NV) center in diamond is presently the focus of widespread attention for applications ranging from quantum information processing to nanoscale metrology. Of great utility is the ability to optically initialize the NV charge state, which has an immediate impact on the center's light emission properties. Here, we use two-color microscopy in NV-rich, type-1b diamond to demonstrate fluorescence-encoded long-term storage of classical information. As a proof of principle, we write, reset, and rewrite various patterns with 2-D binary bit density comparable to present DVD-ROM technology. The strong fluorescence signal originating from the diffraction-limited bit volume allows us to transition from binary to multi-valued encoding, which translates into a significant storage capacity boost. Finally, we show that our technique preserves information written on different planes of the diamond crystal and thus serves as a platform for three-dimensional storage. Substantial enhancement in the bit density could be achieved with the aid of super resolution microscopy techniques already employed to discriminate between NVs with sub-diffraction, nanometer accuracy, a regime where the storage capacity could exceed 1017 bytes/cm3
No Session indicated
Cody Youmans (The Graduate Center, City College, CUNY); Pouyan Ghaemi (Graduate Center, CCNY CUNY) Topological Edge States in Pnictides (No link)
In this talk he showed the coexistence of Antiferromagnetism and superconductivity leads to appearance of robust edge states.
Session on Friday, March 18, 2016.
CCNY Physics Mentors
Physics Faculty are available to mentor students at all levels (undergraduate, master or Ph.D.). To find a mentor, check the link above for mentors and their specialties that interest you. Arrange to meet your prospective mentor to discuss research appropriate to your academic level.
Two Physics Majors attend Frontiers in Optics/Laser Science Conference
Kamonasish Chakraborty and Zabir Hossain, undergraduate Physics Majors whose mentor is Distinguished Professor Robert Alfano, attended the FiO 2013/LS XXIX conference in Orlando, Florida, October 6-10. Their abstracts were presented representing CCNY and the Physics Department. The FiO/LS conference is sponsored by The Optical Society (OSA), Frontiers in Optics 2013, collocated with the American Physical Society Division of Laser Science's Annual Meeting, Laser Science XXIX. Mr. Chakraborty and Mr. Hosssain presented their research during Physics Students Month on October 3: "Stimulated Raman Scattering in Magnegas and H$_2$-CO mixtures." and "Second Harmonic and Optical Parametric Generation in KDP Using Supercontinuum Light from a Photonic Crystal Fiber"
CCNY STEM Majors Scoop Up Record Five Wins at National Conference
Tai-Denae Bradley, mathematics and physics major, is among five City College of New York science students who brought home a record five wins for research presentations at the Annual Biomedical Research Conference for Minority Students (ABRCMS) last semester in San Jose, California.
Science Division CCNY
The CCNY Division of Science gathers and publishes "accessResearch@CITY" (Annals of City College Exemplary Science Student Research in Biology, Chemistry, Earth and Atmospheric Sciences, Mathematics, Physics)
"Modelling the Dynamics of a Tumbling Spring (The Slinky)," Student: Moriel Schottlender; Faculty mentor: V. Parameswaran Nair
The City University of New York's Summer Undergraduate Research Program (C-SURP) invites applications from talented undergraduates interested in research careers in the sciences or engineering. The ten-week program runs from June – August. All undergraduates completing their sophomore or junior year may apply.
Most Physics REU Sites provide opportunities spanning the full range of research of the indicated departments or laboratories, and include both experimental and theoretical activities. Application deadlines for summer programs that are funded by NSF are usually by March 1.
The Research Honors Program is one of several ways for undergraduate students to participate in faculty research projects. Such projects, if judged to be of sufficient quality and quantity, may lead to a degree with honors.
The large active research faculty provides undergraduate research opportunities in many fields of experimental and theoretical physics. Modern laboratories provide excellent training facilities in the areas of laser physics, low temperature physics, biophysics and semiconductor physics. Off-site research in atomic physics takes place at Lawrence Berkeley National Laboratory. Some students also participate in theoretical physics research, primarily in the areas of condensed matter physics and high energy. Academic credit can be earned for participation in such research projects. leading to graduation with Research Honors.
Physics Students Month Presentations by Kelly Greenland, "The Physics of Biophysics" and Alan Stern, "Artificial Proteins as Self Assembling Anti Reflective Monolayers" October 8, 2013. Photos by Liutauras Rusaitis.
Harry Charalambous at University of Chicago: "Continuous Cryogenic He-3 Adsorption Pump" . "I did my REU at the University of Chicago. David Schuster was my advisor. He's a professor there who works on low temperature physics, namely circuit quantum electrodynamics using SQUIDS and on the effects of electrons on liquid helium. He's also taken to redesigning the dilution refrigerators used in labs to get to the millikelvin temperature range (he has 2 of them already).
Benjamin Diamond at CCNY, Quantum Mechanics workshop working with Dr. Brian Tiburzi and various other physics students I knew since before the workshop It was taxing on the mind but I appreciated the experience
Tai-Danae Bradley at the Institute for Advanced Study (IAS) in Princeton, NJ, attending the IAS's annual 2-week long "Program for Women and Mathematics" which serves as a mentoring program for aspiring women mathematicians and seeks to shed light on the issues of gender imbalance in mathematics. We attended daily lectures, research seminars, and colloquia on this year's topic - Combinatorics and Graph Theory. Worked with other undergraduates, graduate students, post-docs and professional researchers from universities all over the US (and some from Europe). It was really an unforgettable experience!
Tai-Danae Bradley at CCNY working on my honors research project in Number Theory (a branch of mathematics, my second major) and worked with Dr. Brooke Feigon (Math Dept.) and two other students (Yin Choi Cheng and Yan Fei Luo). We have compiled our results into a paper and submitted it to the undergraduate math journal "Involve." We are hoping to be published soon! I feel better equipped for graduate work and have learned so much more than expected - not only new mathematics, but also some of the nuances of what it takes to be a truly successful researcher.
Alisa Agafonova, Undergraduate research for Professor Lia Krusin, City College, CUNY
"Production of nanoplate crystals of topological insulator Sb2Te3 by catalyst-free vapor-liquid-solid method. Study of the crystals using transmission electron microscopy."
Alisa Agafonova, Summer Undergraduate Research Fellowship, Systems Biology Center NY, NY. Mentor - Azi Lipshtat.
"Stochastic Effects in Polymerization Dynamics" Constructed a series of computational models, to analyze the dynamics of the polymerization process, using Kinetic Monte Carlo (Gillespie) algorithm for stochastic model, and the Master Equation to calculate the steady state length distribution.
"Function of flp-1 and Modeling its Effects on Neuronal Networks in C. elegans"
Raubern S. Totanes, Mentor: Chris Li (Biology)
"A Field-Theory Approach to Quantum Tunneling"
Rajshekhar Basak, Mentor: V. P. Nair (Physics)
"Generation of Bessel and Airy Beams and their Applications"
Ougni Chakraborty, Mentor: Robert Alfano (Physics)
"A Monte Carlo Simulation of Non-ideal Particles in a Small Cavity"
Ali Eltareb, Mentor: Michael E. Green (Chemistry)
"Rational Design of an Artificial Protein for Light-Activated Charge Separation"
John Lin. Mentor: Ronald Koder (Physics)
"Efficiency of Quantum Dot Sensitized Solar Cells utilizing multiple"
Veeshan Narinesingh, Mentor: Robert Alfano (Physics)
Alan Stern, Research mentor: Associate Prof. Ronald Koder, "Artificial Proteins as Self Assembling Anti Reflective Monolayers"
Haiming Deng, Research mentor: Professor Kia Krusin, “High Temperature Surface Superconductivity in Topological Insulator Sb2Te3”
Zabir Hossain, Research mentor: DIstinguished Professor Robert Alfano: "Quasi Particles"
Zabir Hossain, Research mentor: Distinguished Prof. Robert Alfano, Physics Department "Overview of the generation of supercontinuum in photonic crystal fibers"
Jorge Tirado, Research Mentor: Prof. Marilyn Gunner, Physics Department "The Electrochemistry of the Flavin"
Ron Schneider, Research Mentor: Prof. Ilona Krtzschmar, Chemical Engineering "Model and Experiments on Patchy Particles"
Moriel Schottlender, Research Mentor: Distinguished Prof. V. P. Nair, Physics "Modelling the Dynamics of a Tumbling Spring (The Slinky)"
Simon Divilov, "Synthesis and electrical characterization of topological insulators Sb2Te3 and Bi2Te3" Lin Bo , Lukas Zhao , Limin Huang , Alisa Agafonova , Simon Divilov , Stephen O'Brien , Lia Krusin-Elbaum , Myriam Sarachik, March meeting of the American Physical Society, March 21-25, 2011, Dallas, TX
"Magnetically-doped nanoplate crystals of topological insulators Sb2Te3" Lukas Zhao , Lin Bo , Limin Huang , Alisa Agafonova , Simon Divilov , Stephen O'Brien , Myriam Sarachik , Lia Krusin-Elbaum, March meeting of the American Physical Society, March 21-25, 2011, Dallas, TX
Theresa Carranza-Fulmer, Montana State University-Bozeman National Science Foundation-funded ResearchExperience for Undergraduates internship; research assistant with the U.S. Geological Survey's geomagnetism program, after having interned there for a summer through a Research Experience in Solid Earth Science for Students also funded by the National Science Foundation; undergraduate summer internship, at the University of Michigan under her current advisor, Mark Moldwin, resulted in a poster about plasma composition changes during the latest solar cycle (1996-2008).
Ariana van Gelder
Giovanni Milione, Researcher, City College of New York, currently Ph.D. Student in Physics
Student Member, SPIE (International Society for Optics and Photonics)
SPIE Involvement: Author
Area of Expertise: Singular Optics, Vector Beams, Geometric Phase, Polarization, Angular momentum of light, Higher order fiber modes
SPIE Optics and Photonics Scholarship 2011
National Science Foundation Graduate Research Fellowship 2011
1. Haiming Deng (Research Mentor- Prof. Lia Krusin, Physics)
2. Inna Shteinbuk (Research Mentor- Prof. Lia Krusin, Physics)