Academic Programs

Fee Structure

conference and Seminars

Muhammad Javaid Iqbal

Nationality: Pakistani
Postal Address: 11G Marghazar, Opp. Multan Road Lahore.
Phone: +92-42-99231136
E-mail: javaid2k@gmail.com, javaid2k@hotmail.com

Academic Background
2013- to date  Assistant Professor at Centre of Excellence in Solid State Physics, University of the Punjab, QAC, Lahore-54590, Pakistan
2012-2013 Postdoc in the group Physics of Nanodevices, University of Groningen, the Netherlands.
2007-2012 Ph.D. in experimental Physics from the University of Groningen, the Netherlands. Research position in the group of Prof. dr. ir. C. H. van der Wal and Prof. dr. ir. B. J. van Wees.
Thesis title: Electron many-body effects in quantum point contacts.
Ph.D. advisor: Prof. dr. ir. C. H. van der Wal.
2007 Recipient of HEC overseas-scholarship for Ph.D.
2005-2007 M.Phil. (Course work and research) in Microelectronics Engineering and semiconductor Physics, University of the Punjab Lahore, Pakistan.
2004-2005 Lecturer in Physics at Pakistan College of Science and Technology, Qasur.
2002-2004 M.Sc. in Physics, G.C. University Lahore, Pakistan.
2000-2002 B.Sc. in Physics and Mathematics (double course), Punjab University, Lahore, Pakistan.
Research Interests and Current Work

During my studies I have always been intrigued by the physical phenomena at the nanoscale level. For my Ph.D. research I performed experiments that aimed at improving the understanding of physics in nanoscale electronic devices. The work was on the electrical transport properties of Quantum Point Contacts (QPCs), with a focus on electron many-body states that can form in these devices. These have a significant influence on the transport properties, and a well-known expression of these effects is the so-called 0.7 anomaly. Explaining these effects is a long-standing puzzle (since 1996) in this field. To solve this puzzle, I adopted in my Ph.D. research a new approach by developing QPCs with an in-situ tuning of the length of the transport channel (publication 3). My measurements with these devices led to the discovery of a periodic dependence of the 0.7 anomaly on the channel length, and provide evidence that the origin of the 0.7 anomaly lies in emergent electron localization due to electron many-body effects (publication 1).
Nanoscience has the potential to revolutionize the world and I want work at the forefront of research that explores the new physical phenomena that provide the foundations of this development.
At present I’m working as an assistant prof. in the Centre of Excellence in Solid State Physics, University of the Punjab, Lahore, Pakistan. My job responsibilities here are to teach MS students and conduct research work. Currently I’m working on few research projects. First one is to study the gas and vapor sensors of different nanotubes and particles (e.g. ZnO, FeO, Carbon etc). Secondly we are working on different field effect transistor devices made of clusters of nanotubes and nanoparticles of various materials like carbon, Silver and Gold.
My main interest is in the electrical and spin transport properties at the nanoscale level.

Expertise and Skills

I am an experimentalist with expertise on electrical transport measurements on nanoscale devices at cryogenic temperatures. During my Ph.D. work I developed expertise in nanofabrication techniques (all the devices were designed and fabricated by myself) that were based on electron-beam lithography, wet-etching of semiconductors, metal deposition by electron-beam evaporation, optical and electron microscopy and other clean-room techniques. All measurements were performed at low temperatures in a dilution refrigerator with home-built electronic measurement equipment for detecting very low current and voltage signals. I developed LabView programs for making measurements automated, fast and efficient.

Software Skills
  • MS Office
  • Latex
  • Matlab
  • Mathematica
  • Origin
  • Labview
Equipment used/Handled
  • Clean room experience
  • Chemical bench
  • Wet Etching
  • Optical microscope
  • Phase contrast microscope
  • SEM
  • Height profilometer
  • Ovens and RTA for annealing and processing
  • Cryogenic handling (Nitrogen and Helium) and measurements with cryostats
  • Dil/Fridge with superconducting magnet for very low temperature (up to 80mK) Magneto transport measurements
  • Kethleys and lock-in for low noise phase-locked measurements
  • Probe station
  • E-beam lithography
  • Metal deposition with e-beam evaporator
  • Wire bonding
  • Scriber for sample cutting
  • Ultrasonic bath
Selected Conferences and Presentations
  • FOM @ Physics Veldhoven (Netherlands), 18-19 Jan. 2012 (plenary talk in Nanoscience session). Talk title: Tunable single and paired quasi-localized states and related Kondo physics in quantum point contacts (M. J. Iqbal, E. J. Koop, J. B. Dekker, J. H. M. van der Velde, J. P. de Jong, D. Reuter, A. D. Wieck, R. Aguado, Y. Meir and C. H. van der Wal)
  • ICPS 2012, 31st International Conference on the Physics of Semiconductors, Zurich (Switzerland), 29 July-3 Aug. 2012. Talk title: Tunable electron many-body physics with single and paired localized states in quantum point contacts (C. H. van der Wal, M. J. Iqbal, E. J. Koop, J. B. Dekker, J. H. M. van der Velde, J. P. de Jong, D. Reuter, A. D. Wieck, R. Aguado, and Y. Meir).
  • International workshop on spin-dynamics and Kondo effects in STM and Nanodevices, Hamburg, (Germany), 15-16 Dec. 2011 (invited talk). Talk title: Tunable single and paired Kondo states in clean semiconductor quantum point contacts (C. H. van der Wal, M. J. Iqbal, E. J. Koop, J. B. Dekker, J. H. M. van der Velde, J. P. de Jong, D. Reuter, A. D. Wieck, R. Aguado, and Y. Meir).
  • Quantum Spintronics Workshop-II, Sardinia (Italy), Oct. 2011 (poster presentation).
  • Workshop on functional nano-materials and devices, Zernike Institute and international collaborators, at Vlieland (Netherlands), Apr. 2011 (poster presentation).
  • FOM @ Physics Veldhoven (Netherlands), Jan. 2011 (poster presentation).
  • Workshop on functional nano-materials and devices, Zernike Institute and international collaborators, at Vlieland (Netherlands), May. 2009 (poster presentation).
  • FOM @ Physics Veldhoven (Netherlands), Jan. 2009 (poster presentation).
  • FOM @ Physics Veldhoven (Netherlands), Jan. 2008 (poster presentation).
  • Workshop on Electron beam lithography in Dusseldorf, Germany, 2008.
  • International conference on Solid State Physics, Lahore (Pakistan) 1-6 Dec. 2013 (Invited talk) Talk Title: Robust recipe for low-resistance ohmic contacts to a two- dimensional electron gas in GaAs/AlxGa1-xAs heterostructures, (M. J. Iqbal, D. Reuter, A. D. Wieck and C. H. van der Wal).
  • An invited Seminar at the department of Physics, LUMS University (Pakistan) 27 Feb. 2013 Title: Electrical transport properties of Quantum Point Contacts
  • International conference on Solid State Physics, Lahore (Pakistan) 13-17 Dec. 2015 (Invited talk) Talk Title: Influence of lateral channel shifting on localized electron many-body states in quantum point contacts, (M. J. Iqbal, D. Reuter, A. D. Wieck and C. H. van der Wal).
  • 5th International Symposium on Biomedical Materials: Clinical Requirements and Regulatory Affairs (14 - 16 December 2016 )
Student Supervision and Teaching
  • I have supervised several 12 bachelor, master and Mphil students for their research projects.
  • I have taught a courses on Semiconductor Electronics Devices and Solid State Electronics devices to MS and PhD students.
PUBLICATIONS