The heavy fermion state with Kondo-hybridisation (KH), usually manifested in f-electron systems with lanthanide or actinide elements, was recently discovered in several 3d transition metal compounds without f-electrons. However, KH has not yet been observed in 4d/5d transition metal compounds, since more extended 4d/5d orbitals do not usually form flat bands that supply localised electrons appropriate for Kondo pairing. Here, we report a substitution- and temperature-dependent angle-resolved photoemission study on 4d Ca2-xSrxRuO4, which shows the signature of KH. We observed a spectral weight transfer in the gamma-band, reminiscent of an orbital-selective Mott phase (OSMP). The Mott localised gamma-band induces the KH with an itinerant beta...
Pressure plays a key role in the study of quantum materials. Its application in angle resolved photo...
We investigate the electronic structure of 4d transition-metal oxides CaRuO3 and SrRuO3. The analysi...
We study the origin of the temperature-induced Mott transition in Ca2RuO4. As a method we use the lo...
A paradigmatic case of multi-band Mott physics including spin-orbit and Hund's coupling is realized ...
A paradigmatic case of multi-band Mott physics including spin-orbit and Hund's coupling is realized ...
A paradigmatic case of multi-band Mott physics including spin-orbit and Hund's coupling is realized ...
We reveal the orbital-selective metal-insulator transition in a 4d multiorbital system, $Sr_{3}(Ru_{...
Doped Mott insulators are the starting point for interesting physics such as high temperature superc...
CeOs4Sb12 (COS) and PrOs4Sb12 (POS) are two representative compounds that provide the ideal vantage ...
O 1s x-ray absorption study of the Mott insulator Ca2RuO4 shows that the orbital population of the 4...
O 1s x-ray absorption study of the Mott insulator Ca2RuO4 shows that the orbital population of the 4...
Kondo lattices are a fascinating class of intermetallic compounds that contain certain rare earth el...
We present a comprehensive angle-resolved photoemission spectroscopy study of Ca1.8Sr0.2RuO4. Four d...
Novel electronic phenomena frequently form in heavy-fermions because of the mutual localized and iti...
Ca2RuO4 is a multi-band Mott transition system with a ground state that is known to be sensitive to ...
Pressure plays a key role in the study of quantum materials. Its application in angle resolved photo...
We investigate the electronic structure of 4d transition-metal oxides CaRuO3 and SrRuO3. The analysi...
We study the origin of the temperature-induced Mott transition in Ca2RuO4. As a method we use the lo...
A paradigmatic case of multi-band Mott physics including spin-orbit and Hund's coupling is realized ...
A paradigmatic case of multi-band Mott physics including spin-orbit and Hund's coupling is realized ...
A paradigmatic case of multi-band Mott physics including spin-orbit and Hund's coupling is realized ...
We reveal the orbital-selective metal-insulator transition in a 4d multiorbital system, $Sr_{3}(Ru_{...
Doped Mott insulators are the starting point for interesting physics such as high temperature superc...
CeOs4Sb12 (COS) and PrOs4Sb12 (POS) are two representative compounds that provide the ideal vantage ...
O 1s x-ray absorption study of the Mott insulator Ca2RuO4 shows that the orbital population of the 4...
O 1s x-ray absorption study of the Mott insulator Ca2RuO4 shows that the orbital population of the 4...
Kondo lattices are a fascinating class of intermetallic compounds that contain certain rare earth el...
We present a comprehensive angle-resolved photoemission spectroscopy study of Ca1.8Sr0.2RuO4. Four d...
Novel electronic phenomena frequently form in heavy-fermions because of the mutual localized and iti...
Ca2RuO4 is a multi-band Mott transition system with a ground state that is known to be sensitive to ...
Pressure plays a key role in the study of quantum materials. Its application in angle resolved photo...
We investigate the electronic structure of 4d transition-metal oxides CaRuO3 and SrRuO3. The analysi...
We study the origin of the temperature-induced Mott transition in Ca2RuO4. As a method we use the lo...