Thomas Timusk

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Tom Timusk is a Professor Emeritus of Physics at McMaster University in Hamilton, Ontario Canada. He is a retired member of the Condensed Matter research team at McMaster. [1] He was an immigrant from Estonia displaced by Second World War. He settled in Hamilton, Ontario Canada.

McMaster University public research university in Hamilton, Ontario, Canada

McMaster University is a public research university in Hamilton, Ontario, Canada. The main McMaster campus is on 121 hectares of land near the residential neighbourhoods of Ainslie Wood and Westdale, adjacent to the Royal Botanical Gardens. It operates six academic faculties: the DeGroote School of Business, Engineering, Health Sciences, Humanities, Social Science, and Science. It is a member of the U15, a group of research-intensive universities in Canada.

Estonia Republic in Baltic Region of Northern Europe

Estonia, officially the Republic of Estonia, is a country on the eastern coast of the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland with Finland on the other side, to the west by the Baltic Sea with Sweden on the other side, to the south by Latvia (343 km), and to the east by Lake Peipus and Russia (338.6 km). The territory of Estonia consists of a mainland and 2,222 islands in the Baltic Sea, covering a total area of 45,227 km2 (17,462 sq mi), water 2,839 km2 (1,096 sq mi), land area 42,388 km2 (16,366 sq mi), and is influenced by a humid continental climate. The official language of the country, Estonian, is the second-most-spoken Finnic language.

Hamilton, Ontario City in Ontario, Canada

Hamilton is a port city in the Canadian province of Ontario. An industrialized city in the Golden Horseshoe at the west end of Lake Ontario, Hamilton has a population of 536,917, and its census metropolitan area, which includes Burlington and Grimsby, has a population of 747,545. The city is about 40 miles (64 km) southwest of Toronto, with which the Greater Toronto and Hamilton Area (GTHA) is formed.



He started his research in spectroscopy and he is considered an experimental physicist. His original lab at McMaster was known as the Solid State Lab in the basement of the Senior Sciences Building. Recently he has had two labs and continues to complete active funded research. Timusk also researches superconductivity theory.

Spectroscopy study of the interaction between matter and electromagnetic radiation

Spectroscopy is the study of the interaction between matter and electromagnetic radiation. Historically, spectroscopy originated through the study of visible light dispersed according to its wavelength, by a prism. Later the concept was expanded greatly to include any interaction with radiative energy as a function of its wavelength or frequency, predominantly in the electromagnetic spectrum, though matter waves and acoustic waves can also be considered forms of radiative energy; recently, with tremendous difficulty, even gravitational waves have been associated with a spectral signature in the context of the Laser Interferometer Gravitational-Wave Observatory (LIGO) and laser interferometry. Spectroscopic data are often represented by an emission spectrum, a plot of the response of interest, as a function of wavelength or frequency.

Superconductivity Electrical conductivity with almost zero resistance.

Superconductivity is the set of physical properties observed in certain materials, wherein electrical resistance vanishes and from which magnetic flux fields are expelled. Any material exhibiting these properties is a superconductor. Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even down to near absolute zero, a superconductor has a characteristic critical temperature below which the resistance drops abruptly to zero. An electric current through a loop of superconducting wire can persist indefinitely with no power source.


Timusk graduated with a BA in physics from the University of Toronto. He obtained his PhD at Cornell University where his research was funded by a US Navy grant. He did his post-doctorate work in Frankfurt, Germany and at the University of Illinois, Urbana-Champaign. In 1965, he accepted a position at McMaster University where he has since been a professor. [2]

University of Toronto university in Toronto, Ontario, Canada

The University of Toronto is a public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution of higher learning in the colony of Upper Canada. Originally controlled by the Church of England, the university assumed the present name in 1850 upon becoming a secular institution. As a collegiate university, it comprises eleven colleges, which differ in character and history, each with substantial autonomy on financial and institutional affairs. It has two satellite campuses in Scarborough and Mississauga.

Cornell University Private Ivy League research university in Upstate New York

Cornell University is a private and statutory Ivy League research university in Ithaca, New York. Founded in 1865 by Ezra Cornell and Andrew Dickson White, the university was intended to teach and make contributions in all fields of knowledge—from the classics to the sciences, and from the theoretical to the applied. These ideals, unconventional for the time, are captured in Cornell's founding principle, a popular 1868 Ezra Cornell quotation: "I would found an institution where any person can find instruction in any study."


Professor Timusk is an active member of both the Canadian Association of Physicists and American Physics Society. He was also inducted in the Royal Society of Canada in 1995. [3]

The Canadian Association of Physicists (CAP), or in French Association canadienne des physiciens et physiciennes (ACP) is a Canadian professional society that focuses on creating awareness amongst Canadians and Canadian legislators of physics issues, sponsoring physics related events, physics outreach, and publishes Physics in Canada. The organization was founded in 1945 and currently has over 1,600 members. CAP is bilingual and functions in both English and French.

Royal Society of Canada academy in Canada

The Royal Society of Canada, also known as the Academies of Arts, Humanities and Sciences of Canada, is the senior national, bilingual council of distinguished Canadian scholars, humanists, scientists and artists. The primary objective of the RSC is to promote learning and research in the arts, the humanities and the sciences. The RSC is Canada’s National Academy and exists to promote Canadian research and scholarly accomplishment in both official languages, to recognize academic and artistic excellence, and to advise governments, non-governmental organizations and Canadians on matters of public interest.


The Frank Isakson Prize for Optical Effects in Solids is a prize that has been awarded every second year by the American Physical Society since 1980. The recipient is chosen for "outstanding optical research that leads to breakthroughs in the condensed matter sciences.". The prize is named after Frank Isakson, and as of 2007 it is valued at $5,000.


arXiv online digital archive for electronic preprints of scientific papers

arXiv is a repository of electronic preprints approved for posting after moderation, but not full peer review. It consists of scientific papers in the fields of mathematics, physics, astronomy, electrical engineering, computer science, quantitative biology, statistics, mathematical finance and economics, which can be accessed online. In many fields of mathematics and physics, almost all scientific papers are self-archived on the arXiv repository. Begun on August 14, 1991, passed the half-million-article milestone on October 3, 2008, and had hit a million by the end of 2014. By October 2016 the submission rate had grown to more than 10,000 per month.

The bibcode is a compact identifier used by several astronomical data systems to uniquely specify literature references.

Digital object identifier Character string used as a permanent identifier for a digital object, in a format controlled by the International DOI Foundation

In computing, a digital object identifier (DOI) is a persistent identifier or handle used to identify objects uniquely, standardized by the International Organization for Standardization (ISO). An implementation of the Handle System, DOIs are in wide use mainly to identify academic, professional, and government information, such as journal articles, research reports and data sets, and official publications though they also have been used to identify other types of information resources, such as commercial videos.

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Condensed matter physics branch of physics

Condensed matter physics is the field of physics that deals with the macroscopic and microscopic physical properties of matter. In particular it is concerned with the "condensed" phases that appear whenever the number of constituents in a system is extremely large and the interactions between the constituents are strong. The most familiar examples of condensed phases are solids and liquids, which arise from the electromagnetic forces between atoms. Condensed matter physicists seek to understand the behavior of these phases by using physical laws. In particular, they include the laws of quantum mechanics, electromagnetism and statistical mechanics.

High-temperature superconductivity Superconductive behavior at temperatures much higher than absolute zero

High-temperature superconductors are materials that behave as superconductors at unusually high temperatures. The first high-Tc superconductor was discovered in 1986 by IBM researchers Georg Bednorz and K. Alex Müller, who were awarded the 1987 Nobel Prize in Physics "for their important break-through in the discovery of superconductivity in ceramic materials".

Homess law

In superconductivity, Homes's law is an empirical relation that states that a superconductor's critical temperature (Tc) is proportional to the strength of the superconducting state for temperatures well below Tc close to zero temperature multiplied by the electrical resistivity measured just above the critical temperature. In cuprate high-temperature superconductors the relation follows the form

Pseudogap State at which a Fermi surface has a partial energy gap in condensed matter physics

In condensed matter physics, a pseudogap describes a state where the Fermi surface of a material possesses a partial energy gap, for example, a band structure state where the Fermi surface is gapped only at certain points. The term pseudogap was coined by Nevill Mott in 1968 to indicate a minimum in the density of states at the Fermi level, N(EF), resulting from Coulomb repulsion between electrons in the same atom, a band gap in a disordered material or a combination of these. In the modern context pseudogap is a term from the field of high-temperature superconductivity which refers to an energy range which has very few states associated with it. This is very similar to a true 'gap', which is an energy range that contains no allowed states. Such gaps open up, for example, when electrons interact with the lattice. The pseudogap phenomenon is observed in a region of the phase diagram generic to cuprate high-temperature superconductors, existing in underdoped specimens at temperatures above the superconducting transition temperature.

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  1. "Condensed Matter Experiment at McMaster University". McMaster University. 2004. Retrieved 2009-03-27.
  2. "MAC Physics: Dr. T. Timusk". McMaster University. Archived from the original on 2007-08-10. Retrieved 2009-03-27.
  3. "Fellows of the Royal Society of Canada honoured". McMaster University. 2002. Archived from the original on 2002-11-15. Retrieved 2009-03-27.
  4. "Profile for Thomas Timusk". 2004. Retrieved 2009-03-27.[ dead link ]