Ph.D., University of Florida (1992)
B.S., University of Illinois (1987)

My research group is interested in the behavior of materials under extreme conditions. We are well known for our spectroscopic work in high magnetic fields and pressures, under unusual chemical and photochemical activation, and at very small sizes where quantum confinement becomes apparent. Representative publications that illustrate the breadth and depth of our science program are given below.

Vibrational fingerprints of ferroelectric HfO₂, S. Fan, S. Singh, X. Xu, K. Park, Y. Qi, S. W. Cheon, D. Vanderbilt, K.M. Rabe, and J.L. Musfeldt, npj Quant. Mater. 7, 32 (2022).

High field magnetoelectric and spin-lattice coupling in multiferroic (NH₄)₂[FeCl₅(H₂))]. K.D. Hughey, M. Lee, J, Nam, A.J. Clune, K.R. O’Neal, W. Tian, R.S. Fishman, M. Ozerov, J. Lee, V.S. Zapf, and J.L. Musfeldt, Inorg. Chem. 61, 3434 (2022).

Nonreciprocal directional dichroism at telecom wavelengths, K. Park, M.O. Yokosuk, M. Goryca, Junjie Yang, S.A. Crooker, S.-W. Cheong, K. Haule, D. Vanderbilt, H.-S. Kim, and J.L. Musfeldt, npj Quant. Mater. 7, 38 (2022). NHMFL Science Highlight

Symmetry progression and polar metallicity in NiPS₃ under pressure, N.C. Harms, T. Matsuoka, S. Samanta, A.J. Clune, K.A. Smith, A.V. Haglund, E. Feng, H. Cao, J.S. Smith, D.G. Mandrus, H.-S. Kim, Z. Liu, and J.L. Musfeldt, npj. 2D Mater and Applic. 6, 40 (2022).

Excitations of intercalated metal monoloayers in transition metal dichalcogenides, S. Fan, S.N. Neal, C.J. Won, J.W. Kim, S. Deepak, J.J. Yang, D.G. Mandrus, S.-W. Cheong, J.T. Haraldsen, and J.L. Musfeldt, Nano Lett. 21, 99 (2021).

Exploring few- and single-layer CrPS₄ with near-field infrared spectroscopy, S.N. Neal, K.R. O’Neal, A.V. Haglund, D.G. Mandrus, H.A. Bechtel, G.L. Carr, K. Haule, D. Vanderbilt, H.S. Kim, and J.L. Musfeldt, 2D Materials 8, 035020 (2021).

Spectroscopic analysis of vibronic relaxation pathways in molecular spin qubit [Ho(W₅O₁₈)₂]^9-: sparse spectra are key, A.L. Blockmon, A. Ullah, K.D. Hughey, Y. Duan, K.R. O’Neal, M. Ozerov, J.J. Baldovi, J. Aragó, A. Gaita-Arino, E. Coronado, and J.L. Musfeldt, Inorg. Chem. 60, 14096 (2021).

Developing the pressure – temperature – magnetic field phase diagram of multiferroic [(CH₃NH₂]MnHCOO)₃, A.J. Clune, N.C. Harms, K.R. O’Neal, K.D. Hughey, K.A. Smith, D. Obeysekera, J. Haddock, N.S. Dalal, J. Yahng, Z. Liu, and J.L. Musfeldt, Inorg Chem 59, 10083 (2020).

Site-specific spectroscopic measurement of spin and charge in (LuFeO₃)_m/(LuFe₂O₄)₁ multiferroic superlattices, S. Fan, H.Da, A.F. Febola, K.A. Smight, J.A. Mundy, C.S. Brooks, M. Holtz, D.A. Muller, C.J. Fennie, R. Ramesh, D.G. Schlom, S.A. McGill and J.L. Musfeldt, Nature Comm. 11, 5582 (2020). NHMFL Highlight, December 2020.