Gilbert George Lonzarich

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Gilbert "Gil" George Lonzarich (born 1945) [1] is a solid-state physicist and Emeritus Professor of the University of Cambridge. He is particularly noted for his work on superconducting and magnetic materials carried out at the Cavendish Laboratory .

Contents

Life

Lonzarich received his BA degree from University of California, Berkeley (1967), his M.S. from the University of Minnesota (1970) and his Ph.D. degree from University of British Columbia (1973). Starting as a postdoc, he has held positions at the University of Cambridge. Since 1997 he is a professor at the Cavendish Laboratory, where he heads the quantum matter group. [2]

Research

The research of Lonzarich focuses on solids where the interaction between electrons can lead to unconventional states of matter. His work has addressed different material classes, including itinerant magnets (such as MnSi), [3] heavy-fermion materials, [4] [5] and ferroelectrics. [6] One groundbreaking result for the field of unconventional superconductivity was the demonstration that the suppression of antiferromagnetic order in heavy-fermion materials, i.e. a quantum-critical point, can induce superconductivity. [4]

Important aspects of the experiments of Lonzarich's group are crystal growth, ultra-low temperatures (mK temperatures), high-pressure experiments, and quantum oscillations (continuing the work of David Shoenberg). [7]

Notable former students in the group of Lonzarich include Piers Coleman, Louis Taillefer, [5] Andrew MacKenzie, and Christian Pfleiderer. [3] [7]

Awards

Related Research Articles

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<span class="mw-page-title-main">Condensed matter physics</span> Branch of physics

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Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic fields are expelled from the material. 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.

<span class="mw-page-title-main">Heike Kamerlingh Onnes</span> Dutch physicist, Nobel prize winner (1853–1926)

Heike Kamerlingh Onnes was a Dutch physicist and Nobel laureate. He exploited the Hampson–Linde cycle to investigate how materials behave when cooled to nearly absolute zero and later to liquefy helium for the first time, in 1908. He also discovered superconductivity in 1911.

<span class="mw-page-title-main">Liquid helium</span> Liquid state of the element helium

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<span class="mw-page-title-main">History of superconductivity</span>

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CeCoIn5 ("Cerium-Cobalt-Indium 5") is a heavy-fermion superconductor with a layered crystal structure, with somewhat two-dimensional electronic transport properties. The critical temperature of 2.3 K is the highest among all of the Ce-based heavy-fermion superconductors.

<span class="mw-page-title-main">Chiral magnetic effect</span>

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References

  1. 1 2 "Preisverleihungen 1991". Phys. Bl. 47: 230. 1991. doi: 10.1002/phbl.19910470317 .
  2. 1 2 3 4 "Department of Physics, Cavendish Laboratory". University of Cambridge, Department of Physics. Archived from the original on 6 October 2010. Retrieved 25 January 2017.
  3. 1 2 Pfleiderer, C.; McMullan, G.J.; Julian, S.R.; Lonzarich, G.G. (1997). "Magnetic quantum phase transition in MnSi under hydrostatic pressure". Phys. Rev. B. 55 (13): 8330–8338. Bibcode:1997PhRvB..55.8330P. doi:10.1103/PhysRevB.55.8330.
  4. 1 2 Mathur, N.D.; Grosche, F.M.; Julian, S.R.; Walker, I.R.; Freye, D.M.; Haselwimmer, R.K.W.; Lonzarich, G.G. (1998). "Magnetically mediated superconductivity in heavy fermion compounds". Nature. 394 (6688): 39–43. Bibcode:1998Natur.394...39M. doi:10.1038/27838. S2CID   52837444.
  5. 1 2 Taillefer, L.; Lonzarich, G.G. (1988). "Heavy-fermion quasiparticles in UPt3". Phys. Rev. Lett. 60 (15): 1570–1573. Bibcode:1988PhRvL..60.1570T. doi:10.1103/PhysRevLett.60.1570. PMID   10038074.
  6. Rowley, S.E.; Spalek, L.J.; Smith, R.P.; Dean, M.P.M.; Itoh, M.; Scott, J.F.; Lonzarich, G.G.; Saxena, S.S. (2014). "Ferroelectric quantum criticality". Nature Physics. 10 (5): 367–372. arXiv: 0903.1445 . Bibcode:2014NatPh..10..367R. doi:10.1038/nphys2924. S2CID   120096268.
  7. 1 2 Gibney, E. (2017). "A quantum pioneer unlocks matter's hidden secrets". Nature. 549 (7673): 448–450. Bibcode:2017Natur.549..448G. doi: 10.1038/549448a .
  8. "Kamerlingh Onnes Prize". M2S Conference 2015. Archived from the original on 10 October 2018. Retrieved 25 January 2017.