"The 17 position knob: Tuning interactions with rare earths" by Paul Canfield (Ames Laboratory and Iowa State University)

Date: 
Thursday, May 25, 2017 - 4:00pm to 5:00pm
Series: 
Physics and Astronomy Colloquium

Thursdays, 4:00-5:00 pm

1-434 Physics and Astronomy (map)
Reception from 3:30-4:00 p.m.
(unless otherwise posted)

Guest Speaker:  Paul Canfield (Ames Laboratory and Iowa State University)

Talk Title:  “The 17 position knob:  Tuning interactions with rare earths.”

Abstract:

Physicists see the rare earth group of elements as a powerful tool for tuning the properties of materials.  Choice or control of rare earths can be used to modify (i) the size of the unit cell, (ii) the size of the local moment and degree of coupling, (iii) the size and direction of magnetic anisotropy, (iv) the amount of entropy that can be removed at low temperatures, (v) the degree of band filling, and / or (vi) the degree of hybridization.  In this seminar I will provide an overview and examples of how this region of the periodic table can be used to guide and inspire research into a wide swath of novel materials and ground states.  By using rare earths as a focal point we can cut across superconductivity, metamagnetism, spinglasses, quasicrystals and quantum criticality all for the price of a single admission.

For more information, contact Jay Hauser

We thank the following people for their contributions to the wine fund for the post-colloquium reception:
Prof. Dolores Bozovic, Prof. Robijn Bruinsma, Prof. Wesley Campbell, Prof. Bob Cousins, Prof. Jay Hauser, Prof. Eric Hudson, Robert Huff, Prof. HongWen Jiang, Prof. Alex Kusenko, Prof. John Miao, Prof. George Morales, Prof. Pietro Musumeci, Prof. Christoph Niemann, Prof. Rene Ong, Prof. James Rosenzweig, Prof. David Saltzberg, Prof. Jean Turner, and Prof. Gary Williams.

Location: 
1-434 PAB