Pairing symmetry is a fundamental property that characterizes a superconductor. For the iron-
based high-temperature superconductors,, an s±-wave pairing symmetry has received …

Condensed-matter analogues of the Higgs boson in particle physics allow insights into its
behaviour in different symmetries and dimensionalities. Evidence for the Higgs mode has …

Competition and cooperation among orders is at the heart of many-body physics in strongly
correlated materials and leads to their rich physical properties. It is crucial to investigate …

Recently,“application of electric field (E-field)” has received considerable attention as a new
method to induce novel quantum phenomena since application of E-field can tune the …

We study the origin of the temperature-induced Mott transition in Ca 2 RuO 4. As a method
we use the local-density approximation+ dynamical mean-field theory. We show the …

The insulator-metal transition in Mott insulators, known as the Mott transition, is usually
accompanied with various novel quantum phenomena, such as unconventional …

Pressure plays a key role in the study of quantum materials. Its application in angle resolved
photoemission (ARPES) studies, however, has so far been limited. Here, we report the …

Epitaxial SrRuO 3 and CaRuO 3 films were grown under an excess flux of elemental
ruthenium in an adsorption-controlled regime by molecular-beam epitaxy (MBE), where the …

Progress in performing angle-resolved photoemission spectroscopy (ARPES) with high
spatial resolution on the order of 1 lm or less (nanoARPES) has opened the possibility to …

The crystal structure of the double-layered Ca 3 Ru 2 O 7 has been studied by convergent
beam electron diffraction and powder neutron diffraction. The temperature dependence of …