All posts by Brian Davis

Haghshenasfard and Cottam’s studies of quantum coherent waves in magnetic nanowires featured by the UK Institute of Physics

Groundbreaking work by Professor Mike Cottam and postdoc Dr. Zahra Haghshenasfard has been featured by the UK Institute of Physics (IoP). The news article appeared in the IoP’s blog JPhys+, which highlights the highest quality papers published in IoP Physics journals to increase visibility of the research. A link to the blog can be found by clicking here.

The paper deals with magnons, which represent the quantized “spin waves” of magnetic fluctuations and are the analogs of photons as the quanta of light. The theoretical analysis explores how quantum coherence can lead to drastic modifications in the magnon properties in low-dimensional materials, such as magnetic nanowires. The work has important implications for applications in signal processing with magnetic devices, magnetic-based computer memories, and fundamentals of quantum computing.

The reference for the journal paper, which was also a chapter in Zahra’s recently completed Ph.D. thesis, is Journal of Physics: Condensed Matter, volume 29, 195801 (2017).

Congratulations Zahra and Mike!

Henry’s Retirement Luncheon

In honour of the department’s computer resource guru, Henry Leparskas’, impending retirement, an intimate lunch gathering was held on Wednesday May 10 at the Grad Club to say thanks and farewell.

Henry has been an invaluable member of the Physics and Astronomy team for 33 years, always willing to help solve any technical issue or volunteer with whatever event was happening and always had his camera handy to capture memories and document milestones for everyone in the department. Henry will be sorely missed, never forgotten and not easily replaced.

Henry’s final day of work will be Friday May 12. Everyone in the department wishes Henry all the best in his next chapter.  Relax, have fun, and enjoy yourself. Happy retirement Henry!

 

Physics 4999 Undergraduate Thesis Presentations A Great Success

On Friday April 21, 2017 the members of the undergraduate thesis course, Physics 4999, presented their research talks. The course was overseen by Professor Giovanni Fanchini.

  Abhilash Mathews The role of superradiance in cosmic fast radio bursts
  Patrick Hatch The observability of Population III star clusters with the James Webb space telescope
  Jason Sung Probing star formation in the universe with carbonaceous molecules
  Denis Heynen Detection of very-low frequency radiation from fireballs
  J. Sachi Elkerton Metal loss of evolved stars in low-metallicity dwarf galaxies
  Erin Iredale Simulation of electric field from implanted electrodes for the treatment of primary brain tumors (via Skype)
Dylan Del Papa Electric field transfer concept applied to an insulated metal wire exposed to a 21.3 MHz electric field
Renlong Zheng Tuning the pore size and gas adsorption ability of MOFs via mixed linker and alkali metal doping

[Flickr images]

MARYAM TABESHIAN SUCCESSFULLY DEFENDS PhD THESIS

On Wednesday April 19, 2017 Maryam Tabeshian gave a public lecture on her thesis topic “Detection and Characterization of Extrasolar Planets through Planet-Disk Dynamical Interactions”. She then successfully defended the thesis.

Maryam was supervised by Dr. Paul Wiegert.

Maryam also acknowledged the assistance of Dr. Martin Houde who supervised her Masters research and with whom she began her doctoral studies.

Master’s and Doctoral Opportunities in Physics and Astronomy

The University of Western Ontario Department of Physics and Astronomy invites applications for approximately 20 diverse Master’s and Doctoral project offerings.

The two-year MSc program is based half on completing graduate course requirements and half on research. The four-year PhD program is based mostly on supervised research under the guidance of one of the faculty members.

In Astronomy, areas of research span observations and theory in meteor physics, solar system and exoplanetary astronomy, substellar objects, planet and star formation, the interstellar medium, the evolution of hot stars, stellar populations, and active galactic nuclei.

The Astronomy group consists of 12 full-time faculty and approximately 30 graduate students and postdocs. The Astronomy group is affiliated with the Centre for Planetary Science and Exploration (CPSX; http://cpsx.uwo.ca/). Western astronomers have access to all telescopes with a Canadian national share, and regularly lead observational programs on the Hubble, Spitzer, Chandra, and XMM space telescopes, and on the SOFIA stratospheric observatory. Western further owns and operates astronomy research facilities in Southwestern Ontario.

Our Physics faculty work on a broad range of experimental, theoretical and computational problems in condensed matter and materials physics, nanotechnology, biological physics, medical physics, atmospheric physics, theoretical physics, and planetary science.

The Physics group consist of 19 full-time faculty and approximately 40 graduate students and postdocs, conducting research in in a wide variety of areas within the field. The group is affiliated with many top research facilities on campus including Interface Science Western (home of the tandetron accelerator), the Western Nanofabrication Facility and the Robarts Research Institute, and also has partnerships within industry.

More information about physics & astronomy research at Western can be found at http://www.physics.uwo.ca/research/index.html.

Scholarships and Fellowships are available to outstanding students from the School of Graduate and Postdoctoral Studies, CPSX, the Ontario government, or the Canadian government.

Complete applications submitted by January 15, 2017 will receive full consideration for external scholarships and an invitation to visit campus. Application forms and instructions can be found at http://www.physics.uwo.ca/graduate/future_students/how_to_apply.html.

Western is a vibrant university with over 23,000 undergraduate and over 5,000 graduate students, located in the city of London, the multicultural hub of Southwestern Ontario.

If you would like more information or have any questions about our programs please contact our graduate affairs assistant Brian Davis at bdavis66@uwo.ca or 519-661-2111 ext.86639