Preprints
Direct Evidence of Metal-Ligand Redox in Li-ion Battery Cathodes
G.J.P. Fajardo, D. Dogaru, M. Ans, M.J.W. Ogley, V. Majherova, I. McClelland, S. Hayashida, P. Puphal, M. Isobe, B. Keimer, P.K. Thakur, Tien-Lin Lee, D.C. Grinter, P. Ferrer, S.A. Cussen, M. Hepting, and L.F.J. Piper
arXiv:2505.01251
Three-dimensional zigzag correlations in the van der Waals Kitaev magnet RuBr3
H. Gretarsson, R. Iwazaki, F. Sato, H. Gotou, S. Francoual, J. Nasu, Y. Imai, K. Ohgushi, J. Chaloupka, B. Keimer, and H. Suzuki
arXiv:2604.05346
Evolution of spin excitations in superconducting La2−xCaxCuO4−𝛿 from the underdoped to the heavily overdoped regime
S. Hameed, Y. Liu, M. Knauft, K. S. Rabinovich, G. Kim, G. Christiani, G. Logvenov, F. Yakhou-Harris, A. V. Boris, B. Keimer, M. Minola
arXiv:2509.06680
Magnetism of the alternating monolayer-trilayer phase of La3Ni2O7
R. Khasanov, T.J. Hicken, H. Luetkens, Z. Guguchia, D.J. Gawryluk, V. Sundaramurthy, A. Suthar, M. Isobe, B. Keimer, G. Khaliullin, M. Hepting, and P. Puphal
arXiv:2512.22371
Uniaxial strain tuning of polar lattice vibrations in KTaO3 and SrTiO3
I. Khayr, N. Somun, S. Hameed, Z. Van Fossan, X. He, R. Spieker, S. Chi, E. Clements, D.M. Pajerowski, M. Minola, B. Keimer, T. Birol, D. Pelc, and M. Greven
arXiv:2511.10623
Anisotropic magnetoelastic coupling in the honeycomb magnet Na3Co2SbO6
P.K. Mukharjee, S. Erdmann, L. Wang, J. Kaiser, A. Jesche, P. Puphal, M. Isobe, M. Hepting, B. Keimer, P. Gegenwart, and A.A. Tsirlin
arXiv:2603.103214
From perovskite to infinite-layer nickelates: hole concentration from x-ray absorption
R. Pons, M. Flavenot, K. Fürsich, E. Schierle, E. Weschke, M. R. Cantarino, E. Goering, P. Nagel, S. Schuppler, G. Kim, G. Logvenov, B. Keimer, R. J. Green, D. Preziosi, and E. Benckiser
arXiv:2601.07710
Comparative Raman study of Ruddlesden-Popper nickelates and the monolayer-trilayer polymorph
V. Sundaramurthy, A. Suthar, P. Puphal, C. Le, Y. Gu, H. Yilmaz, P. Sosa-Lizama, P.A. van Aken, Y.E. Suyolcu, M. Isobe, A.P. Schnyder, X. Wu, M. Minola, B. Keimer, and M. Hepting
arXiv:2512.17583
Ultrasensitive strain modulation of terahertz magnons at a magnetic phase transition
L. Wang, S. Hameed, Y. Liu, M. Knauft, K. Higuchi, M. Krautloher, S. Francoual, G. Khaliullin, H. Liu, M. Minola, and B. Keimer
arXiv:2602.13924