Kathrin Gotze

Research InterestsSuperconductivity and Magnetism

My research project focuses on the investigation of magnetic and electronic properties of new materials like unconventional superconductors and quantum magnets. A current issue in this field is the question of what happens when a phase transition is driven towards absolute zero temperature resulting in a quantum critical point. The new phenomena around such a point could help understand the mechanisms behind exotic magnetism and unconventional superconductivity. Driving materials to quantum criticality requires extreme experimental conditions involving low temperatures, high magnetic fields and high pressures. Our group builds set-ups to make experiments under such conditions possible both in-house and in external facilities.

Background

I joined the Superconductivity and Magnetism group at Warwick as a Postdoctoral Research Fellow in December 2016, where I work with Dr Paul Goddard.
I completed my PhD in physics in 2015 at the High Magnetic Field Laboratory (HLD-EMFL) in Dresden, Germany under the supervision of Prof J. Wosnitza. In the course of my PhD project I investigated the Fermi surface properties of a series of europium-based systems in order to work out the influence of different europium valence configurations on the electronic band structure. Besides that I conducted experiments on structural relatives of pnictide superconductors and heavy-fermion compounds. For the experimental determination of the Fermi surface I used the de Haas-van Alphen effect which is a periodic change of the magnetisation that can be observed in high magnetic fields.

Publications

2020 - K. Götze, M. J. Pearce, P. A. Goddard, M. Jaime, M. B. Maple, K. Sasmal, T. Yanagisawa, A. McCollam, T. Khouri, P.-C. Ho, and J. Singleton, "Unusual phase boundary of the magnetic-field-tuned valence transition in ${CeOs}_{4} {Sb}_{12}$ ", Physical Review B, 101, 075102 (2020) (URL)

2019 -J. Klotz, K. Götze, V. Lorenz, Yu. Prots, H. Rosner, H. Harima, L. Bochenek, Z. Henkie, T. Cichorek, I. Sheikin, and J. Wosnitza, "Fermi surface investigation of the filled skutterudite ${LaRu}_{4} {As}_{12}$ ", Physical Review B, 100, 205106 (2019) (URL)

2019 - D. A. Mayoh, M. J. Pearce, K. Götze, A. D. Hillier, G. Balakrishnan, M. R. Lees, "Superconductivity and the upper critical field in the chiral noncentrosymmetric superconductor NbRh₂B₂", J. Phys.: Condens. Matter, Vol. 31, 46 (2019) (URL)

2019 - J. Klotz, K. Götze, T. Förster, J. A. N. Bruin, J. Wosnitza, K. Weber, M. Schmidt, W. Schnelle, C. Geibel, U. K. Rößler, and H. Rosner, "Electronic band structure and proximity to magnetic ordering in the chiral cubic compound CrGe", Physical Review B 99, 085130 (2019) (URL)

2018 - J. Klotz, K. Götze, I. Sheikin, T. Förster, D. Graf, J.-H. Park, E. S. Choi, R. Hu, C. Petrovic, J. Wosnitza, and E. L. Green, "Fermi surface reconstruction and dimensional topology change in Nd-doped CeCoIn₅", Physical Review B 98, 081105(R) (2018) (URL)

2018 - D. A. Mayoh, A. D. Hillier, K. Götze, D. McK. Paul, G. Balakrishnan, and M. R. Lees, "Multigap superconductivity in chiral noncentrosymmetric TaRh₂B₂", Physical Review B 98, 014502 (2018) (URL)

2018 - C. Patrick, S. Kumar, K. Götze, M. Pearce, J. Singleton, G. Rowlands, G. Balakrishnan, M. R. Lees, P. Goddard and J. B. Staunton, "Field-induced canting of magnetic moments in GdCo₅ at finite temperature: first-principles calculations and high-field measurements", J. Phys.: Condens. Matter, Vol. 30 , 32 (2018) (URL)

2018 - J. Klotz, K. Götze, E. L. Green, A. Demuer, H. Shishido, T. Ishida, H. Harima, J. Wosnitza, and I. Sheikin, "Fermi-surface topology of the heavy-fermion system Ce₂PtIn₈", Physical Review B 97, 165120 (2018) (URL)

2017 - K. Götze, Y. Krupko, J. A. N. Bruin, J. Klotz, R. D. H. Hinlopen, S. Ota, Y. Hirose, H. Harima, R. Settai, A. McCollam, and I. Sheikin, "Quasi-two-dimensional Fermi surfaces with localized f electrons in the layered heavy-fermion compound CePt₂In₇", Physical Review B, 96, 075138 (2017) (URL)

2017 - K. Götze, D. Aoki, F. Lévy-Bertrand, H. Harima, and I. Sheikin, "Drastic change of the Fermi surface across the metamagnetic transition in CeRh₂Si₂", Physical Review B, 95, 161107(R) (2017) (URL)

2015 - K. Götze, J. Klotz, D. Gnida, H. Harima, D. Aoki, A. Demuer, S. Elgazzar, J. Wosnitza, D. Kaczorowski, I. Sheikin, "Quasi-two-dimensional Fermi surface of the heavy fermion superconductor Ce₂PdIn₈", Physical Review B, 92, 115141 (2015) (URL)

2012 - A. Polyakov, O. Ignatchik, B. Bergk, K. Götze, A.D. Bianchi, S. Blackburn, B. Prevost, G. Seyfarth, M. Coté, D. Hurt, C. Capan, Z. Fisk, R.G. Goodrich, I. Sheikin, M. Richter, J. Wosnitza, "Fermi-surface evolution in Yb-substituted CeCoIn₅", Physical Review B, 85, 245119 (2012). (URL)