684 citations · 2.6k across the 31 of their papers we have counts for
31 papers
Frustrated Magnetism of Pharmacosiderite Comprising Tetrahedral Clusters Arranged in the Primitive Cubic Lattice
Ryutaro Okuma, Takeshi Yajima, Tatsuo Fujii +2
We show that pharmacosiderite is a novel cluster antiferromagnet comprising frustrated regular tetrahedra made of spin-5/2 Fe3+ ions that are arranged in the primitive cubic lattic…
Phonon anomalies and lattice dynamics in superconducting oxychlorides CaCuOCl
Matteo D'Astuto, Ikuya Yamada, Paola Giura +6
We present a comprehensive study of the phonon dispersion in an underdoped, superconducting CaCuOCl crystal. We interpret the results using lattice dynamical calcul…
Effect of Zn substitution for Cu on CaNaCuOCl near the hole concentration of 1/8 per Cu
K. H. Satoh, M. Hiraishi, M. Miyazaki +8
A weakening of superconductivity upon substitution of Cu by Zn (0.5~1 %) is observed in a high-T_c cuprate, Ca_{2-x}Na_xCuO2Cl2, near the hole concentration of 1/8 per Cu. The supe…
Understanding the Unique Structural and Electronic Properties of SrFeO2
J. M. Pruneda, Jorge Iniguez, Enric Canadell +2
We report a first-principles study of SrFeO, an infinite-layer oxide with Fe atoms in a perfect square-planar coordination down to essentially 0 K. Our results reveal this stri…
Soft x-ray magnetic circular dichroism study of Ca_1-xSr_xRuO_3 across the ferromagnetic quantum phase transition
J. Okamoto, T. Okane, Y. Saitoh +10
Ca_1-xSr_xRuO_3, which is ferromagnetic for Sr concentration x > 0.3, has been studied by x-ray magnetic circular dichroism (XMCD) in Ru 3p and O 1s core-level x-ray absorption. XM…
Quasi-particle interference and superconducting gap in a high-temperature superconductor Ca2-xNaxCuO2Cl2
T. Hanaguri, Y. Kohsaka, J. C. Davis +7
High-transition-temperature (high-Tc) superconductivity is ubiquitous in the cuprates containing CuO2 planes but each cuprate has its own character. The study of the material depen…