Earth Magnetic Materials Research Articles

McEnroe Receives 2019 William Gilbert Award

Suzanne A. McEnroe received the 2019 William Gilbert Award at AGU’s Fall Meeting 2019 Honors Ceremony, held 9–13 December in San Francisco, Calif. The award recognizes “outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.”

De Groot Receives 2018 William Gilbert Award

Lennart de Groot will receive the 2018 William Gilbert Award at AGU’s Fall Meeting 2018, to be held 10–14 December in Washington, D. C. The award recognizes “outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.”

Booker Receives 2017 William Gilbert Award

John R. Booker will receive the 2017 William Gilbert Award at the 2017 American Geophysical Union Fall Meeting, to be held 11–15 December in New Orleans, La. The award recognizes “outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.”

Shaar Receives 2016 William Gilbert Award

Ron Shaar will receive the 2016 William Gilbert Award at the 2016 American Geophysical Union Fall Meeting, to be held 12–16 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Jackson Receives 2015 William Gilbert Award

Michael Jackson will receive the 2015 William Gilbert Award at the 2015 American Geophysical Union Fall Meeting, to be held 14–18 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Swanson-Hysell Receives 2014 William Gilbert Award

Nicholas Swanson-Hysell received the 2014 William Gilbert Award at the 2014 American Geophysical Union Fall Meeting, held 15–19 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Kopp Receives 2012 William Gilbert Award: Citation

Robert E. Kopp received the 2012 William Gilbert Award at the 2012 AGU Fall Meeting, held 3–7 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Kirschvink receives 2011 William Gilbert Award: Response

Joseph Kirschvink received the William Gilbert Award at the 2011 AGU Fall Meeting, held 5–9 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Kirschvink receives 2011 William Gilbert Award: Citation

Joseph Kirschvink received the William Gilbert Award at the 2011 AGU Fall Meeting, held 5–9 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Stanley receives 2010 William Gilbert Award: Citation

Sabine Stanley received the William Gilbert Award at the 2010 AGU Fall Meeting, held 13–17 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Stanley receives 2010 William Gilbert Award: Response

Sabine Stanley received the William Gilbert Award at the 2010 AGU Fall Meeting, held 13–17 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Dennis Kent Receives 2009 William Gilbert Award

Dennis Kent received the William Gilbert Award at the 2009 AGU Fall Meeting, held 14–18 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Lagroix Receives 2008 William Gilbert Award

France Lagroix received the William Gilbert Award at the 2008 AGU Fall Meeting Honors Ceremony, held 17 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Coe Receives 2007 Gilbert Award

Robert S. Coe received the 2007 William Gilbert Award at the 2007 AGU Fall Meeting in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.

Harrison receives 2006 William Gilbert Award

Richard J. Harrison received the William Gilbert Award at the 2006 AGU Fall Meeting. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.This year the Gilbert Award is given to an outstanding young scientist under the age of 35. Richard Harrison easily fulfills the first criterion and just makes the second. He is now 34. As I reviewed Richard's accomplishments, I was once again impressed with his scope and level of research. He has 50 papers published, or in press, and all of them are of the same high scientific caliber. Many of you know Richard's cutting‐edge research with electron holography showing magnetic interactions across magnetite‐ulvospinel intergrowths, and are familiar with his groundbreaking research on lamellar magnetism. His TEM observations, combined with extensive Monte Carlo simulations of atomic interactions in hematite‐ilmenite interfaces, which took both electrostatic and magnetic interactions into consideration, have developed the idea of contact layers as a magnetic substructure of defect moments at the interfaces. This was followed by work that showed that contact layers reduce charge imbalance at the interfaces.

Magnetic Properties of New Series R -Mo-Fe Nitrides with the ThMn 12 -Type Structure at a Lower Mo Content

A systematic study has been made on formation condition, crystallographic structure and magnetic properties of RMo1.5Fe10.5Nx, where R=Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er. The interstitial nitrogen atom effects on Curie temperature, saturation magnetization and magneto-crystalline anisotropy have been investigated. Two important preliminary results have been obtained. (1) A single phase crystallized in the ThMn12-type structure was stabilized with a smaller content of molybdenum, thus, the compounds possess a higher Curie temperature and a larger spontaneous magnetization. (2) A complete system of compounds with 1:12 type structure containing the light rare earth cerium and praseodymium was synthesized, which will be favorable for developing new rare earth hard magnetic materials.