Matthias Frontzek

Matthias Frontzek

Position: Instrument Scientist

Instrument: Wide-Angle Neutron Diffractometer

Group: Structure of Matter

Division: Quantum Condensed Matter Division

Contact: frontzekmd@ornl.gov or (865) 574-2478

Expertise

Scattering methods:

Powder and Single crystal neutron diffraction on four-circle diffractometers and diffractometers equipped with position sensitive detectors

Powder and Single crystal neutron spectroscopy using triple-axis spetrometers and time-of-flight spectrometers

Elastic and inelastic neutron scattering in high magnetic fields (up to 15 T), at low temperatures (down to 50 mK), at high temperatures (1400 K) and at high pressures (2 GPa)

X-ray diffraction and Resonant magnetic x-ray scattering
 

Laboratory methods:

Experiments in pulsed-magnetic fields

Measurement of magnetization, ac-susceptibility and magnetostriction

 

Scientific Interest

Rare earth magnetism

Low-dimensional magnetism, highly frustrated magnetism

Multiferroicity

Ordering phenomena in non-stoichiometric oxides and the interplay of superstructure and electronic properties
 

 

Education

8/2003 – 08/2009
PhD in physics in the workgroup of Prof. M. Loewenhaupt at the Technical University Dresden on “Magnetic properties of R2PdSi3 (R = heavy rare earth) compounds”

 

09/1997 – 07/2003
Physics study at the Technical University Dresden 

 

Selected Publications

Magneto-crystalline anisotropy in R2PdSi3 (R = Tb, Dy, Ho, Er, Tm) single crystals, M. Frontzek, A. Kreyssig, M. Doerr, M.Rotter, G. Behr, W. Löser, I. Mazilu, M. Loewenhaupt, J. Magn. Magn. Mat. 301 (2006) 398

Frustration in R2PdSi3 (R = Tb, Er) compounds: Spin-glass or magnetic short range order? Neutron diffraction studies, M. Frontzek, A. Kreyssig, M. Doerr, A. Schneidewind, J.-U. Hoffman, M. Loewenhaupt, J. Phys.: Condens. Matter 19 (2007) 145276

Crystallographic superstructure in R2PdSi3 compounds (R=heavy rare earth),  F. Tang, M. Frontzek, J. Dshemuchadse, T. Leisegang, M. Zschornak, R. Mietrach, J.-U. Hoffmann, W. Löser, S. Gemming, D. C. Meyer, and M. Loewenhaupt,  Phys. Rev. B 84 (2011) 104105

Magnetic excitations in the geometric frustrated multiferroic CuCrO2, M. Frontzek, J. T. Haraldsen, A. Podlesnyak, M. Matsuda, A. D. Christianson, R. S. Fishman, A. S. Sefat, Y. Qiu, J. R. D. Copley, S. Barilo, S. V. Shiryaev, G. Ehlers, Phys. Rev. B 84 (2011) 094448

Magnetic structure of CuCrO2: a single crystal neutron diffraction study, M. Frontzek, G. Ehlers, A. Podlesnyak, H. Cao, M. Matsuda, O. Zaharko, N. Aliouane, S. Barilo S. V. Shiryaev,  J. Phys.: Condens. Matter 24 (2012) 016004

High magnetic field evolution of ferroelectricity in CuCrO2, E. Mun, M. Frontzek, A. Podlesnyak, G. Ehlers, S. Barilo, S. V. Shiryaev, V. S. Zapf, Phys. Rev. B 89 (2014) 054411

 

Awards, Honors and Memberships

PSI-Fellow funded through European Community’s Seventh Framework Programme (FP7/2007-2013) under Grant Agreement No. 290605

Co-proposer on the ANR/SNF project SECTOR - Structural-induced electronic complexity controlled by low temperature topotactic reactions