Laboratory for Quantum Matter Research
Johan Chang


11 - Magnetic Excitations of a Half-Filled Tl-based Cuprate
I. Biało, Q. Wang, J. Küspert, X. Hong, L. Martinelli, O. Gerguri, Y. Chan, K. von Arx, O. K. Forslund, W. R. Pudełko, C. Lin, N. C. Plumb, Y. Sassa, D. Betto, N. B. Brookes, M. Rosmus, N. Olszowska, M. D. Watson, T. K. Kim, C. Cacho, M. Horio, M. Ishikado, H. M. Rønnow, J. Chang
arXiv: 2507.22242 (2025)
10 - Differentiation of Site-Specific Symmetry Breaking Orders in Y$_{1-x}$Pr$_x$Ba$_2$Cu$_3$O$_{6+y}$
L. Martinelli, S. Rüdiger, I. Bialo, J. Oppliger, F. Igoa Saldana, M. v. Zimmermann, E. Weschke, R. Arpaia, J. Chang
arXiv: 2507.20640 (2025)
9 - Persistent paramagnons in high-temperature infinite-layer nickelate superconductors
Yujie Yan, Ying Chan, Xunyang Hong, S. Lin Er Chow, Zhaoyang Luo, Yuehong Li, Tianren Wang, Yuetong Wu, Izabela Biało, Nurul Fitriyah, Saurav Prakash, Xing Gao, King Yau Yip, Qiang Gao, Xiaolin Ren, Jaewon Choi, Ganesha Channagowdra, Jun Okamoto, Xingjiang Zhou, Zhihai Zhu, Liang Si, Mirian Garcia-Fernandez, Ke-Jin Zhou, Hsiao-Yu Huang, Di-Jing Huang, Johan Chang, A. Ariando, Qisi Wang
arXiv: 2507.18373 (2025)
8 - Distinct Uniaxial Stress and Pressure Fingerprint of Superconductivity in the 3D Kagome Lattice Compound CeRu2
O. Gerguri, D. Das, V. Sazgari, H. X. Liu, C. Mielke III, P. Kràl, S. S. Islam, J. N. Graham, V. Grinenko, R. Sarkar, T. Shiroka, J. -X. Yin, J. Chang, R. Thomale, H. H. Klauss, R. Khasanov, Y. Shi, H. Luetkens, Z. Guguchia
arXiv: 2507.09779 (2025)
7 - Discovery of High-Temperature Charge Order and Time-Reversal Symmetry-Breaking in the Kagome Superconductor YRu3Si2
P. Kràl, J. N. Graham, V. Sazgari, I. Plokhikh, A. Lukovkina, O. Gerguri, I. Bialo, A. Doll, L. Martinelli, J. Oppliger, S. S. Islam, K. Wang, M. Salamin, H. Luetkens, R. Khasanov, M. v. Zimmermann, J. -X. Yin, Ziqiang Wang, J. Chang, B. Monserrat, D. Gawryluk, F. O. von Rohr, S. -W. Kim, Z. Guguchia
arXiv: 2507.06885 (2025)
6 - Observation of collective charge excitations in a cuprate superconductor
Xunyang Hong, Yujie Yan, L. Martinelli, I. Biało, K. von Arx, J. Choi, Y. Sassa, S. Pyon, T. Takayama, H. Takagi, Zhenglu Li, M. Garcia-Fernandez, Ke-Jin Zhou, J. Chang, Qisi Wang
arXiv: 2503.04334 (2025)
5 - Strange metal from spin fluctuations in a cuprate superconductor
D. J. Campbell, M. Frachet, V. Oliviero, T. Kurosawa, N. Momono, M. Oda, J. Chang, D. Vignolles, C. Proust, D. LeBoeuf
arXiv: 2412.03720 (2024)
4 - Pressure induced transition from chiral charge order to time-reversal symmetry-breaking superconducting state in Nb-doped CsV3Sb5
J.N. Graham, S.S. Islam, V. Sazgari, Y. Li, H. Deng, G. Janka, Y. Zhong, O. Gerguri, P. Kral, A. Doll, I. Bialo, J. Chang, Z. Salman, A. Suter, T. Prokscha, Y. Yao, K. Okazaki, H. Luetkens, R. Khasanov, Z. Wang, J.-X. Yin, Z. Guguchia
arXiv: 2411.18744 (2024)
3 - Charge orders with distinct magnetic response in a prototypical kagome superconductor LaRu3Si2
C. Mielke III, V. Sazgari, I. Plokhikh, S. Shin, H. Nakamura, J.N. Graham, J. Küspert, I. Bialo, G. Garbarino, D. Das, M. Medarde, M. Bartkowiak, S.S. Islam, R. Khasanov, H. Luetkens, M.Z. Hasan, E. Pomjakushina, J.-X. Yin, M.H. Fischer, J. Chang, T. Neupert, S. Nakatsuji, B. Wehinger, D.J. Gawryluk, Z. Guguchia
arXiv: 2402.16219 (2024)
2 - Searching for the signature of a pair density wave in YBa2Cu3O6.67 using high energy X-ray diffraction
E. Blackburn, O. Ivashko, E. Campillo, M. von Zimmermann, R. Liang, D. A. Bonn, W. N. Hardy, J. Chang, E. M. Forgan, S. M. Hayden
arXiv: 2310.18302 (2023)
1 - Bulk charge stripe order competing with superconductivity in La2-xSrxCuO4 (x=0.12)
N. B. Christensen, J. Chang, J. Larsen, M. Fujita, M. Oda, M. Ido, N. Momono, E. M. Forgan, A. T. Holmes, J. Mesot, M. Huecker, M. v. Zimmermann
arXiv: 1404.3192 (2014)