superconductivity; exotic metals; quantum criticality; many-body physics; scattering experiments; charge and spin density waves
Choi J., Ivashko O., Blackburn E., Liang R., Bonn D. A., Hardy W. N., Holmes A. T., Christensen N. B., Hücker M., Gerber S., Gutowski O., Rütt U., Zimmermann M. v., Forgan E. M., Hayden S. M., Chang J. (2020), Spatially inhomogeneous competition between superconductivity and the charge density wave in YBa2Cu3O6.67, in Nature Communications
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Wang Qisi, Horio M., von Arx K., Shen Y., John Mukkattukavil D., Sassa Y., Ivashko O., Matt C. E., Pyon S., Takayama T., Takagi H., Kurosawa T., Momono N., Oda M., Adachi T., Haidar S. M., Koike Y., Tseng Y., Zhang W., Zhao J., Kummer K., Garcia-Fernandez M., Zhou Ke-Jin, Christensen N. B., et al. (2020), High-Temperature Charge-Stripe Correlations in La1.675Eu0.2Sr0.125CuO4, in Physical Review Letters
, 124(18), 187002-187002.
Ivashko O., Horio M., Wan W., Christensen N. B., McNally D. E., Paris E., Tseng Y., Shaik N. E., Rønnow H. M., Wei H. I., Adamo C., Lichtensteiger C., Gibert M., Beasley M. R., Shen K. M., Tomczak J. M., Schmitt T., Chang J. (2019), Strain-engineering Mott-insulating La2CuO4, in Nature Communications
, 10(1), 786-786.
Choi J., Ivashko O., Dennler N., Aoki D., von Arx K., Gerber S., Gutowski O., Fischer M. H., Strempfer J., v. Zimmermann M., Chang J. (2018), Pressure-induced rotational symmetry breaking in URu2Si2, in Physical Review B
, 98(24), 241113-241113.
Horio M., Matt C. E., Kramer K., Sutter D., Cook A. M., Sassa Y., Hauser K., Månsson M., Plumb N. C., Shi M., Lipscombe O. J., Hayden S. M., Neupert T., Chang J. (2018), Two-dimensional type-II Dirac fermions in layered oxides, in Nature Communications
, 9(1), 3252-3252.
Horio M., Hauser K., Sassa Y., Mingazheva Z., Sutter D., Kramer K., Cook A., Nocerino E., Forslund O. K., Tjernberg O., Kobayashi M., Chikina A., Schröter N. B. M., Krieger J. A., Schmitt T., Strocov V. N., Pyon S., Takayama T., Takagi H., Lipscombe O. J., Hayden S. M., Ishikado M., Eisaki H., Neupert T., et al. (2018), Three-Dimensional Fermi Surface of Overdoped La-Based Cuprates, in Physical Review Letters
, 121(7), 077004-077004.
Ivashko Oleh et al. (2017), Damped spin excitations in a doped cuprate superconductor with orbital hybridization, in Physical Review B
Chang Johan et al. (2016), Magnetic field controlled charge density wave coupling in underdoped YBa2Cu3O6+x, in Nature Communications
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Monney Claude et al. (2016), Resonant inelastic x-ray scattering study of the spin and charge excitations in the overdoped superconductor La1.77Sr0.23CuO4, in Physical Review B
Curiosity was the name of a recent Mars rover, missioned to explore possible extra-terrestrial life forms. This was yet another milestone in the ever expanding human exploration of the universe. Back on the earth, contemporary scientists are challenged by complex many-body problems. Man landing on the moon is a simple task compared to understanding how complex immune functions interact with the 100 trillion gut bacteria harboured by humans. Or why the universe seems to have an imbalance between matter and anti-matter. This research proposal is set to investigate complicated many-body systems governed by the laws of quantum mechanics. Although quantum mechanics were established a century ago, quantum many-body physics remains a vivid field of research spanning from cosmology to condensed matter systems. Perhaps high-temperature superconductivity is the best known example of an unsolved quantum many-body problem. It is an example of how researchers keep making unexpected discoveries in the field of quantum matter. The objectives of this research program are to investigate quantum many-body systems realized in solids - socalled quantum matter. Special focus is given to quantum many-body systems that have correspondences to other fields such as cosmology or the physics of ultra-cold atoms gasses. Efforts will also be made to enhance our control of quantum matter. The Q-MAPS research program is divided into four subprojects entitled: Unconventional spin & charge order, quantum criticality, strange metals and pseudogap physics. These problems of two-dimensional fermionic quantum many-body physics will be approached experimentally by state-of-the-art scattering and spectroscopy techniques provided by a dense grid of European large facilities. A horizontal pulsed magnet, specially designed for x-ray diffraction is planned. Combined with the instrumental developments foreseen in the period 2015-2020, entirely new schemes for scattering experiments will be introduced.