Saptarshi Das

Saptarshi Das

Associate Professor of Engineering, Science & Mechanics

(e) sud70@psu.edu
(o) 814-863-2639
N-333 Millennium Science Complex

https://sites.psu.edu/sdas/
Kelsey Maxin

Kelsey Maxin

2DCC Director of User Engagement and Training

(e) ktm133@psu.edu
(o) 814-865-4567
N-338 Millennium Science Complex

Castleman: Will Castleman Jr.

Will Castleman

Castleman realizes an 'alchemist's dream'

A. Welford (Will) Castleman Jr. joined the Penn State chemistry department in 1982. Castleman is perhaps best known for discovering conditions where a “columbic explosion” induced clusters of atoms that mimicking some of the properties of other elements.

Mack: Pauline Mack

Pauline Mack

She performed groundbreaking research in textiles, nutrition, and fire proofing.

Pauline Beery Mack was a brilliant interdisciplinary scientist and educator at Penn State between 1919 and 1950. She was the first woman to gain a doctoral degree at Penn State, awarded in Agricultural Biochemistry (1932). She made numerous scientific contributions; these included textile research, where she and her team developed standardization of dyes and dry-cleaning.

Mallouk: Thomas E. Mallouk

Tom Mallouk

Mallouk Helped Usher in the Nano Revolution

Thomas E. Mallouk and his research group were among the first to connect the fields of solid state and molecular chemistry through their molecules-to-materials approach. Their work formed the materials synthesis nucleus of the Penn State MRSEC, founded in 1999.

Allcock: Harry Allcock

Harry Allcock

Allcock Pioneers New Polymers

Harry Allcock works at the interdisciplinary junction between inorganic and organic chemistry, polymer chemistry, biomedicine, and materials science. His insight that incorporating inorganic elements into the backbone structure of polymers could give rise to a class of polymers with never before seen characteristics has led to several hundred new polymers with applications in medicine, aerospace materials, batteries, fuel cells, solar cells, and photonic materials.

Cross: L. Eric Cross

Eric Cross

Cross was a Master of Ferroelectric Materials

Cross, who was Evan Pugh Professor Emeritus of Electrical Engineering, came to Penn State in 1961, an Englishman who served in the British Admiralty during WWII where he formed part of the group using high frequency direction finding to track German U-boats in the Battle of the Atlantic. Along with close friend and collaborator Robert Newnham, Cross developed the underwater sonar transducers that helped the U.S.

Room-temperature spin-orbit torque switching induced by a topological insulator

Room-temperature spin-orbit torque switching induced by a topological insulator

The strongly spin-momentum coupled electronic states in topological insulators (TI) have been extensively pursued to realize efficient magnetic switching. However, previous studies show a large discrepancy of the charge-spin conversion efficiency. Moreover, current-induced magnetic switching with TI can only be observed at cryogenic temperatures. We report spin-orbit torque switching in a TI-ferrimagnet heterostructure with perpendicular magnetic anisotropy at room temperature. The obtained effective spin Hall angle of TI is substantially larger than the previously studied heavy metals.