Website: http://webpages.csus.edu/nsm-phys-lowtemplab/

Full CV

Research

I am an experiment condensed matter physicist studying superfluidity in liquid and solid helium. Specifically my research focusses on the continuing search for a superfluid phase in solid helium (the so-called supersolid phase). Currently I am working on developing novel techniques to control interatomic interactions on liquid helium in an effort to forge a new path to creating solid helium.

In this effort I run the Sacramento State Low Temperature Physics Laboratory, where we are building the apparatus that will allow us to cool to our samples to 1.5 K (-269^oC). For more information please visit the laboratory page by using the link above.

Selected Publications

• A. Tadic, A. Reyes Borunda, M.W. Ray, Development of a Voltage Controlled Reisstor for Use in a Self-Balancing Resistance Bridge, Rev. Sci. Instrum. 90, 124706 (2019).

• M.W. Ray, E. Ruokokoski, K. Tiurev, M. Mottonen and D.S. Hall, Obseration of Isolated Monopoles in a Quatum Field, Science 348, 544 (2015)

• M.W. Ray, E. Ruokokoski, S. Kandel, M. Mottonen and D.S. Hall, Observation of Dirac Monoples in a Synthetic Magnetic Field, Nature 505, 657 (2014).

• M.W. Ray and R.B. Hallock, Mass Flux and Solid Growth in Solid ⁴He for 60 - 700 mK, Phys. Rev. Lett. 105, 145301 (2010).

• M.W. Ray and R.B. Hallock, Observation of Unusual Mass Transfport in Solid hcp ⁴He, Phys. Rev. Lett. 100, 235301 (2008).

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