Zobrazeno 1 - 10
of 350
pro vyhledávání: '"Muthu, D."'
Autor:
Rosalin, M, Irshad, K. A., Joseph, Boby, Telang, Prachi, Singh, Surjeet, Muthu, D. V. S., Sood, A. K.
The pyrochlore iridates, A$_2$Ir$_2$O$_7$, show a wide variety of structural, electronic, and magnetic properties controlled by the interplay of different exchange interactions, which can be tuned by external pressure. In this work, we report pressur
Externí odkaz:
http://arxiv.org/abs/2405.07607
Autor:
Pal, Srishti, Seth, Arnab, Ali, Anzar, Singh, Yogesh, Muthu, D. V. S., Bhattacharjee, Subhro, Sood, A. K.
We report low-temperature Raman signatures of the Heisenberg quantum magnet Ca$_{10}$Cr$_7$O$_{28}$, showing clear anomalies in phonon mode frequencies and linewidths below $\sim$100 K. This crossover temperature lies in between the Jahn-Teller (JT)
Externí odkaz:
http://arxiv.org/abs/2308.03237
Autor:
Malavi, Pallavi, Paul, Arpita, Bera, Achintya, Muthu, D V S, Majhi, Kunjalata, Kumar, P S Anil, Waghmare, Umesh V., Sood, A. K., Karmakar, S.
Publikováno v:
Phys. Rev. B 107, 024506, 2023
Quasi-two-dimensional layered BiSe, a natural super-lattice with Bi2Se3-Bi2-Bi2Se3 units, has recently been predicted to be a dual topological insulator, simultaneously weak topological insulator as well as topological crystalline insulator. Here usi
Externí odkaz:
http://arxiv.org/abs/2205.06626
Autor:
Pal, Srishti, Malavi, Pallavi, Sinha, Arijit, Ali, Anzar, Sakrikar, Piyush, Joseph, Boby, Waghmare, Umesh V., Singh, Yogesh, Muthu, D. V. S., Karmakar, S., Sood, A. K.
The layered honeycomb lattice iridate Cu$_2$IrO$_3$ is the closest realization of the Kitaev quantum spin liquid, primarily due to the enhanced interlayer separation and nearly ideal honeycomb lattice. We report pressure-induced structural evolution
Externí odkaz:
http://arxiv.org/abs/2205.00966
Autor:
Pal, Srishti, Kumar, Vinod, Panda, Debendra Prasad, Sundaresan, A., Mahajan, Avinash V., Muthu, D. V. S., Sood, A. K.
We report low-temperature (down to $\sim$5 K) Raman signatures of the recently discovered intercalated honeycomb magnet Ag$_3$LiIr$_2$O$_6$, a putative Kitaev quantum spin liquid (QSL) candidate. The Kitaev QSL is predicted to host Majorana fermions
Externí odkaz:
http://arxiv.org/abs/2201.05039
Autor:
Das, Subhadip, Chaturvedi, Shashank, Tripathy, Debashis, Grover, Shivani, Singh, Rajendra, Muthu, D. V. S., Sampath, S., Waghmare, U. V., Sood, A. K.
Recently discovered class of 2D materials based on transition metal phosphorous trichalcogenides exhibit antiferromagnetic ground state, with potential applications in spintronics. Amongst them, FePS$ _{3} $ is a Mott insulator with a band gap of $\s
Externí odkaz:
http://arxiv.org/abs/2109.04959
Publikováno v:
Nanoscale, 2020,12, 8371-8378
Bulk 1T$^\prime$-MoTe$_2$ shows a structural phase transition from 1T$^\prime$ to Weyl semimetallic (WSM) $ T_{d} $ phase at $\sim$ 240 K. This phase transition and transport properties in the two phases have not been investigated on ultra-thin cryst
Externí odkaz:
http://arxiv.org/abs/2109.00504
Autor:
Das, Subhadip, Prasad, Suchitra, Chakraborty, Biswanath, Jariwala, Bhakti, Shradha, Sai, Muthu, D. V. S., Bhattacharya, Arnab, Waghmare, U. V., Sood, A. K.
Publikováno v:
Nanoscale, 2021,13, 1248-1256
In the bilayer ReS$ _{2} $ channel of a field-effect transistor (FET), we demonstrate using Raman spectroscopy that electron doping (n) results in softening of frequency and broadening of linewidth of the in-plane vibrational modes, leaving out-of-pl
Externí odkaz:
http://arxiv.org/abs/2109.00478
Autor:
Thomas, Anoop, Telang, Prachi, Mishra, Kshiti, Cesnek, Martin, Bednarcik, Jozef, Muthu, D V S, Singh, Surjeet, Sood, A K
We report temperature-dependent Raman scattering and X-ray diffraction studies of pyrochlore iridates, (Eu$_{1-x}$Bi$_x$)$_2$Ir$_2$O$_7$, for x=0, 0.02, 0.035, 0.05 and 0.1. The temperature variation in Raman experiments spans from 4 K to 300 K, cove
Externí odkaz:
http://arxiv.org/abs/2106.11584
Magnetic and electronic ordering phenomena in the [Ru$_2$O$_6$] honeycomb lattice compound AgRuO$_3$
Autor:
Schnelle, Walter, Prasad, Beluvalli E., Felser, Claudia, Jansen, Martin, Komleva, Evgenia V., Streltsov, Sergey V., Mazin, Igor I., Khalyavin, Dmitry, Manuel, Pascal, Pal, Sukanya, Muthu, D. V. S., Sood, A. K., Klyushina, Ekaterina S., Lake, Bella, Orain, Jean-Christophe, Luetkens, Hubertus
Publikováno v:
Phys. Rev. B 103, 214413 (2021)
The silver ruthenium oxide AgRuO$_3$ consists of honeycomb [Ru$_2^{5+}$O$_6^{2-}$] layers, and can be considered an analogue of SrRu$_2$O$_6$ with a different intercalation stage. We present measurements of magnetic susceptibility and specific heat o
Externí odkaz:
http://arxiv.org/abs/2103.04815