Explanipedia

Growth of ultra-clean oxide single crystals of the altermagnet candidate RuO2 Open

Subrata Paul, Giordano Mattoni, Hisakazu Matsuki, T. Johnson, Chanchal Sow , et al. · 2025

Growth of Ultra-Clean Single Crystals of Ruo2 Open

Y. Maeno, Subrata Paul, Giordano Mattoni, Hisakazu Matsuki, Thomas Johnson , et al. · 2025

Unusual Critical Behavior in Disordered Caru0.85cr0.15o3 Open

Pooja Kesarwani, D.R. Sahu, S.N. Sarangi, D. Samal, Chanchal Sow · 2025

Evolution of ferrimagnetism against Griffiths singularity in Calcium Ruthenate Open

Pooja Kesarwani, S.N. Sarangi, D. Samal, Chanchal Sow · 2024

The magnetism in the correlated metal CaRuO$_3$ is enigmatic as it is poised near a triple point among the ferromagnetic, antiferromagnetic, and paramagnetic ground states. Here we report a detailed work on structural, spectroscopic, magne…

Structural modulation driven Curie temperature enhancement in Cr-doped SrRuO3 Open

Pooja Kesarwani, Bikash Saha, Nitesh Choudhary, Pradip K. Maji, Apurba Bera , et al. · 2024

Strongly correlated system with competing ground states are often poised close to the quantum critical point. External perturbations such as pressure, strain, electric field, and chemical doping can stabilise its ground state with exotic p…

Evolution of ferrimagnetism against Griffiths singularity in calcium ruthenate Open

Pooja Kesarwani, S.N. Sarangi, D. Samal, Chanchal Sow · 2024

The magnetism in the correlated metal CaRuO 3 is enigmatic as it is poised near a triple point among the ferromagnetic, antiferromagnetic, and paramagnetic ground states. Here we report a detailed work on structural, spectroscopic, magneti…

Erratum: Orbital dichotomy of Fermi liquid properties in revealed by Raman spectroscopy [Phys. Rev. B 103, 235147 (2021)] Open

Jean-Côme Philippe, Benoı̂t Baptiste, Chanchal Sow, Y. Maeno, A. Forget , et al. · 2023

Due to a computational error, the values of various quantities obtained in our work are incorrect by a factor $\frac{2}{\ensuremath{\pi}}$. This error does not change the conclusions of our work. This requires small changes in the text to …

Pines’ demon observed as a 3D acoustic plasmon in Sr2RuO4 Open

Ali Husain, Edwin W. Huang, Matteo Mitrano, Melinda Rak, Samantha Rubeck , et al. · 2023

Fabrication of soft bio-spintronic devices for probing the CISS effect Open

Ritu Gupta, Hariharan V. Chinnasamy, Dipak Sahu, Saravanan Matheshwaran, Chanchal Sow , et al. · 2023

Bio-spinterfaces present numerous opportunities to study spintronics across the biomolecules attached to (ferro)magnetic electrodes. While it offers various exciting phenomena to investigate, it's simultaneously challenging to make stable …

Real Solar Cell and Determination Methods of Electrical Parameters Open

El Hadji Mamadou Keita, M. Dia, F.B.R. Mbaye, Chanchal Sow, C. Sène , et al. · 2023

In this work, we develop methods to determine the characteristic electrical parameters of a photovoltaic cell such as the photocurrent density (Jph), the saturation current density (J0), the short-circuit current density (Jsc), the open-ci…

Orbital dichotomy of Fermi liquid properties in revealed by Raman spectroscopy Open

Jean-Côme Philippe, Benoı̂t Baptiste, Chanchal Sow, Y. Maeno, A. Forget , et al. · 2021

We report a polarization-resolved Raman spectroscopy study of the orbital\ndependence of the quasiparticles properties in the prototypical multi-band\nFermi liquid Sr\\textsubscript{2}RuO\\textsubscript{4}. We show that the\nquasiparticle …

Effect of microstructure on the electronic transport properties of\n epitaxial CaRuO$_3$ thin films Open

Gopi Nath Daptary, Chanchal Sow, Suman Sarkar, Santosh Chiniwar, P. S. Anil Kumar , et al. · 2020

We have carried out extensive comparative studies of the structural and\ntransport properties of CaRuO$_3$ thin films grown under various oxygen\npressure. We find that the preferred orientation and surface roughness of the\nfilms are stro…

Effect of microstructure on the electronic transport properties of epitaxial CaRuO$_3$ thin films Open

Gopi Nath Daptary, Chanchal Sow, Suman Sarkar, Santosh Chiniwar, Praveen Satish Kumar , et al. · 2020

We have carried out extensive comparative studies of the structural and transport properties of CaRuO$_3$ thin films grown under various oxygen pressure. We find that the preferred orientation and surface roughness of the films are strongl…

Coexisting Fermi Liquid and Strange Metal Phenomena in Sr$_2$RuO$_4$ Open

Ali Husain, Matteo Mitrano, Melinda Rak, Samantha Rubeck, H.C. Yang , et al. · 2020

The strange metal is an enigmatic phase whose properties are irreconcilable with the established Fermi liquid theory of conductors. A fundamental question is whether a strange metal and a Fermi liquid are distinct phases of matter, or whet…

Momentum-resolved superconducting energy gaps of Sr 2 RuO 4 from quasiparticle interference imaging Open

Rahul Sharma, Stephen Edkins, Zhenyu Wang, Andrey Kostin, Chanchal Sow , et al. · 2020

Sr 2 RuO 4 has long been the focus of intense research interest because of conjectures that it is a correlated topological superconductor. It is the momentum space ( k -space) structure of the superconducting energy gap on each ba…

Anomalous anisotropic behaviour of spin-triplet proximity effect in Au/SrRuO3/Sr2RuO4 junctions Open

M. S. Anwar, M. Kunieda, R. Ishiguro, Sangmin Lee, Chanchal Sow , et al. · 2019

In Situ Control of Diamagnetism by Electric Current in Open

Chanchal Sow, Ryo Numasaki, Giordano Mattoni, Shingo Yonezawa, Naoki Kikugawa , et al. · 2019

Nonequilibrium steady state conditions induced by a dc current can alter the physical properties of strongly correlated electron systems. In this regard, it was recently shown that dc current can trigger novel electronic states, such as cu…

Strong spin-phonon coupling unveiled by coherent phonon oscillations in Open

Min‐Cheol Lee, Choong H. Kim, Inho Kwak, Choongwon Seo, Changhee Sohn , et al. · 2019

We utilize near-infrared femtosecond pulses to investigate coherent phonon oscillations of Ca₂RuO₄. The coherent Ag phonon mode of the lowest frequency changes abruptly not only its amplitude but also the oscillation …

Nano-Resolved Current-Induced Insulator-Metal Transition in the Mott Insulator Open

Jiawei Zhang, Alexander McLeod, Qiang Han, Xinzhong Chen, Hans A. Bechtel , et al. · 2019

The Mott insulator Ca₂RuO₄ is the subject of much recent attention following reports of emergent nonequilibrium steady states driven by applied electric fields or currents. In this paper, we carry out infrared nano-im…

Abnormal phase flip in the coherent phonon oscillations of Open

Min‐Cheol Lee, Choong H. Kim, Inho Kwak, J. Kim, Seokhyun Yoon , et al. · 2018

We employ an optical pump-probe technique to study coherent phonon\noscillations in Ca$_2$RuO$_4$. We find that oscillation-amplitude of an $A_g$\nsymmetric phonon mode is strongly suppressed at 260 K, a putative transition\npoint of orbit…

Abnormal phase shift in the coherent phonon oscillation driven by strong spin-phonon coupling of Ca2RuO4 Open

Min‐Cheol Lee, Choong H. Kim, Inho Kwak, Choongwon Seo, Chae Hoon Sohn , et al. · 2017

We utilized near-infrared femtosecond pulses to investigate coherent phonon oscillations of Ca2RuO4. The coherent Ag phonon mode of the lowest frequency changes abruptly not only its amplitude but also the oscillation-phase as the spin ord…

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

Chanchal Sow, Shingo Yonezawa, Sota Kitamura, Takashi Oka, Kazuhiko Kuroki , et al. · 2017

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 …

Compact AC susceptometer for fast sample characterization down to 0.1 K Open

Shingo Yonezawa, Takumi Higuchi, Yusuke Sugimoto, Chanchal Sow, Y. Maeno · 2015

We report a new design of an AC magnetic susceptometer compatible with the Physical Properties Measurement System (PPMS) by Quantum Design, as well as with its adiabatic demagnetization refrigerator option. With the elaborate compact desig…

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