Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Kummer, Kurt"'
Autor:
Sarkar, Subhrangsu, Capu, Roxana, Pashkevich, Yurii G., Knobel, Jonas, Cantarino, Marli R., Nag, Abhishek, Kummer, Kurt, Betto, Davide, Sant, Roberto, Nicholson, Christopher W., Khmaladze, Jarji, Zhou, Ke-jin., Brookes, Nicholas B., Monney, Claude, Bernhard, Christian
Publikováno v:
PNAS Nexus, Volume 3, Issue 4, April 2024, pgae100
Heterostructures from complex oxides allow one to combine various electronic and magnetic orders as to induce new quantum states. A prominent example is the coupling between superconducting and magnetic orders in multilayers from high-Tc cuprates and
Externí odkaz:
http://arxiv.org/abs/2404.19410
Autor:
Lee, Sang-Eun, Windsor, Yoav William, Zahn, Daniela, Kraiker, Alexej, Kummer, Kurt, Kliemt, Kristin, Krellner, Cornelius, Schüßler-Langeheine, Christian, Pontius, Niko, Staub, Urs, Vyalikh, Denis V., Ernst, Arthur, Rettig, Laurenz
Optical manipulation of magnetism holds promise for future ultrafast spintronics, especially with lanthanides and their huge, localized 4f magnetic moments. These moments interact indirectly via the conduction electrons (RKKY exchange), influenced by
Externí odkaz:
http://arxiv.org/abs/2404.12119
Autor:
Xiao, Zhengyu, Xie, Ruiwen, Maccari, Fernando, Klaassen, Philipp, Eggert, Benedikt, Wang, Di, Dai, Yuting, Lizarraga, Raquel, Lill, Johanna, Helbig, Tom, Wende, Heiko, Kummer, Kurt, Ollefs, Katharina, Skokov, Konstantin, Zhang, Hongbin, Quan, Zhiyong, Xu, Xiaohong, Kruk, Robert, Hahn, Horst, Gutfleisch, Oliver, Ye, Xinglong
Rare earth-transition metal ferrimagnets, featuring antiferromagnetically coupled, inequivalent magnetic sublattices, have garnered increasing interest in the burgeoning field of ferrimagnetic spintronics. However, controlling their magnetism with lo
Externí odkaz:
http://arxiv.org/abs/2312.00643
Autor:
Scott, Kirsty, Kisiel, Elliot, Yakhou, Flora, Agrestini, Stefano, Garcia-Fernandez, Mirian, Kummer, Kurt, Choi, Jaewon, Zhong, Ruidan, Schneeloch, John A., Gu, Genda D., Zhou, Ke-Jin, Brookes, Nicholas B., Kemper, Alexander F., Minola, Matteo, Boschini, Fabio, Frano, Alex, Gozar, Adrian, Neto, Eduardo H. da Silva
Recent improvements in the energy resolution of resonant inelastic x-ray scattering experiments (RIXS) at the Cu-L$_3$ edge have enabled the study of lattice, spin, and charge excitations. Here, we report on the detection of a low intensity signal at
Externí odkaz:
http://arxiv.org/abs/2309.15989
Autor:
Martinelli, Leonardo, Wohlfeld, Krzysztof, Pelliciari, Jonathan, Arpaia, Riccardo, Brookes, Nicholas B., Di Castro, Daniele, Fernandez, Mirian G., Kang, Mingu, Krockenberger, Yoshiharu, Kummer, Kurt, McNally, Daniel E., Paris, Eugenio, Schmitt, Thorsten, Yamamoto, Hideki, Walters, Andrew, Zhou, Ke-Jin, Braicovich, Lucio, Comin, Riccardo, Sala, Marco Moretti, Devereaux, Thomas P., Daghofer, Maria, Ghiringhelli, Giacomo
Publikováno v:
Phys. Rev. Lett. 132, 066004 (2024)
We have investigated the 3d orbital excitations in CaCuO2 (CCO), Nd2CuO4 (NCO), and La2CuO4 (LCO) using high-resolution resonant inelastic x-ray scattering. In LCO they behave as well-localized excitations, similarly to several other cuprates. On the
Externí odkaz:
http://arxiv.org/abs/2304.02115
Autor:
Krebber, Sarah, Kopp, Marvin, Garg, Charu, Kummer, Kurt, Sichelschmidt, Jörg, Schulz, Susanne, Poelchen, Georg, Mende, Max, Virovets, Alexander V., Warawa, Konstantin, Thomson, Mark D., Tarasov, Artem V., Usachov, Dmitry Yu., Vyalikh, Denis V., Roskos, Hartmut G., Müller, Jens, Krellner, Cornelius, Kliemt, Kristin
We investigate single crystals of the trigonal antiferromagnet EuZn$_2$P$_2$ ($P\overline{3}m1$) by means of electrical transport, magnetization measurements, X-ray magnetic scattering, optical reflectivity, angle-resolved photoemission spectroscopy
Externí odkaz:
http://arxiv.org/abs/2302.14539
Autor:
Amorese, Andrea, Hansmann, Philipp, Marino, Andrea, Korner, Peter, Willers, Thomas, Walters, Andrew, Zhou, Kejin, Kummer, Kurt, Brooks, Nicholas B., Lin, Hong-Ji, Chen, Cien-Te, Lejay, Pascal, Haverkort, Maurits W., Tjeng, Liu Hao, Severing, Andrea
Publikováno v:
Phys. Ref. B 107 115164 (2023)
We investigated the electronic structure of the enigmatic CeRh$_3$B$_2$ using resonant inelastic scattering and x-ray absorption spectroscopy in combination with $ab$ $initio$ density functional calculations. We find that the Rh 4$d$ states are irrel
Externí odkaz:
http://arxiv.org/abs/2211.15264
Autor:
Lu, Haiyu, Hashimoto, Makoto, Chen, Su-Di, Ishida, Shigeyuki, Song, Dongjoon, Eisaki, Hiroshi, Nag, Abhishek, Garcia-Fernandez, Mirian, Arpaia, Riccardo, Ghiringhelli, Giacomo, Braicovich, Lucio, Zaanen, Jan, Moritz, Brian, Kummer, Kurt, Brookes, Nicholas B., Zhou, Ke-Jin, Shen, Zhi-Xun, Devereaux, Thomas P., Lee, Wei-Sheng
Publikováno v:
Physical Review B 106, 155109 (2022)
Identifying quantum critical points (QCPs) and their associated fluctuations may hold the key to unraveling the unusual electronic phenomena observed in cuprate superconductors. Recently, signatures of quantum fluctuations associated with charge orde
Externí odkaz:
http://arxiv.org/abs/2210.10201
Autor:
Amorese, Andrea, Khalyavin, Dmitry, Kummer, Kurt, Brookes, Nicholas B., Ritter, Clemens, Zaharko, Oksana, Larsen, Camilla Buhl, Pavlosiuk, Orest, Pikul, Adam P., Kaczorowski, Dariusz, Gutmann, Matthias, Boothroyd, Andrew T., Severing, Andrea, Adroja, Devashibhai T.
CeRh$_3$Si$_2$ has been reported to exhibit metamagnetic transitions below 5~K, a giant crystal field splitting, and anisotropic magnetic properties from single crystal magnetization and heat capacity measurements. Here we report results of neutron a
Externí odkaz:
http://arxiv.org/abs/2202.13195
Autor:
Martinelli, Leonardo, Betto, Davide, Kummer, Kurt, Arpaia, Riccardo, Braicovich, Lucio, Di Castro, Daniele, Brookes, Nicholas B., Sala, Marco Moretti, Ghiringhelli, Giacomo
We use resonant inelastic x-ray scattering (RIXS) to investigate the magnetic dynamics of the infinite-layer cuprate CaCuO2. We find that close to the (1/2,0) point the single magnon decays into a broad continuum of excitations accounting for 80% of
Externí odkaz:
http://arxiv.org/abs/2110.06666