Current-induced strong diamagnetism in the Mott insulator Ca 2 RuO 4

2016/10/07 by Chanchal Sow, Shingo Yonezawa, Sota Kitamura +5 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Current (fluid) #Diamagnetism #Doping #Insulator (electricity) #Magnetic and transport properties of perovskites and related materials #Magnetic field #Materials science #Mott insulator #Multiferroics and related materials #Optoelectronics #Physics #Superconductivity #Thermodynamics #cond-mat.mtrl-sci #cond-mat.str-el

paper · pdf · doi:10.1126/science.aah4297

published as Science 358, 1084-1087 (2017) · 14 pages, 4 figures, plus supplementary materials (11 pages, 6 figures)

arxiv created 2016/10/07 · openalex created_date 2016/10/21 · openalex publication_date 2017/11/23 · arxiv updated 2017/12/08 · openalex updated_date 2026/08/06

Abstract

Tuning diamagnetism with current Properties of materials can be tuned by various means, such as chemical doping, magnetic field, or pressure. Sow et al. used electrical currents of modest density to turn the Mott insulator Ca 2 RuO 4 into a semimetal. Concurrently, its diamagnetic response—the ability to counter an externally applied magnetic field—rose to levels higher than in any other nonsuperconducting material. The use of electrical current as a powerful experimental knob may be applicable to other similar materials. Science , this issue p. 1084

Citations

• Observation of a Novel Orbital Selective Mott Transition inCa1.8Sr0.2RuO4
• Anisotropic uniaxial pressure response of the Mott insulator Ca<mml:mrow/>2RuO<mml:mrow/>4
• Destruction of the Mott insulating ground state ofCa2RuO4by a structural transition
• Quantized Hall Conductance in a Two-Dimensional Periodic Potential
• Current-driven quantum criticality in itinerant electron ferromagnets
• Nonequilibrium Peierls Transition
• Phenomenological theory of the pseudogap state

Cited by

• Spin-Orbital Excitations in Ca2RuO4 Revealed by Resonant Inelastic X-Ray Scattering
• Metal-insulator and magnetic phase diagram of Ca2RuO4 from auxiliary field quantum Monte Carlo and dynamical mean field theory

Related

• Electric-field-induced metal maintained by current of the Mott insulator Ca2RuO4
• Metallisation of the Mott Insulator Ca₂RuO₄ using Electric Double-Layer Gating
• Evidence of electronic states driving current-induced insulator-to-metal transition
• Mott-insulator transition in Ca(2-x)Sr(x)RuO4: A study of the electronic and magnetic properties
• Anisotropic uniaxial pressure response of the Mott insulator Ca<mml:mrow/>2RuO<mml:mrow/>4