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Daniel Haskel

Physicist, Group Leader

Group Leader, Magnetic Materials Group, Advanced Photon Source & Adjunct Profressor, Physics Department, Washington University in St. Louis

Biography

Research Interests

Development of novel polarized x-ray techniques and instrumentation enabling studies of the interplay between structure and electronic structure (chiefly magnetism) in functional materials. Focus is on studies of element-specific magnetism exploiting x-ray dichroic effects. Depth-resolved/interfacial magnetism in layered nanostructures, site-specific magnetism in crystals, and local atomic structure are probed using a combination of polarized spectroscopy and scattering probes. Emphasis is on tunability with external stimulii, particularly high-pressure and magnetic fields. Research includes discovery of novel phenomena in magnetocalorics, permanent magnets, high Tc superconductors and other complex oxides (spinels, manganites, multiferroics, iridates).

Education

Ph.D in Physics, University of Washington (1998)

M.Sc. in Physics, Israel Institute of Technology (Technion) (1992)

B.Sc. in Physics, Israel Institute of Technology (Technion) (1989)

Selected Publications

Pressure tuning of the spin-orbit coupled ground state in Sr2IrO4, D. Haskel, G. Fabbris, M. Zhernenkov, P. Kong, C. Jin, G. Cao, M. van Veenendaal, Phys. Rev. Lett. 109, 027204 (2012)

Role of Ge in bridging ferromagnetism in the giant magnetocaloric Gd5(SixGe1-x)4 alloys, D. Haskel, Y. Lee, B. Harmon, Z. Islam, J. Lang, G. Srajer, Y. Mudryk, K. Gschneidner, V. Pecharsky, Phys. Rev. Lett. 98, 247205 (2007)

Atomic origin of magnetocrystalline anisotropy in Nd2Fe14B, D. Haskel, J. Lang, Z. Islam, A. Cady, G. Srajer, M. van Veenendaal, P. Canfield, Phys. Rev. Lett. 95, 217207 (2005)

Enhanced interfacial magnetic coupling of Gd/Fe multilayers, D. Haskel, G. Srajer, J. Lang, J. Pollmann, C. Nelson, J. Jiang, S. Bader, Phys. Rev. Lett. 87, 207201 (2001)

Dopant and temperature induced phase transition in La2-xSrxCuO4 by XAFS, D. Haskel, E. Stern, D. Hinks, A. Mitchell, J. Jorgensen, J. Budnick, Phys. Rev. Lett. 76, 439 (1996)

Synergetic Activities

Editorial board member, Scientific Reports (a Nature journal)

Secretary/treasurer of the International X-ray Absorption Society (IXAS)