Institution
Tata Institute of Fundamental Research
Education•Mumbai, Maharashtra, India•
About: Tata Institute of Fundamental Research is a education organization based out in Mumbai, Maharashtra, India. It is known for research contribution in the topics: Magnetization & Large Hadron Collider. The organization has 7786 authors who have published 21742 publications receiving 622368 citations. The organization is also known as: TIFR.
Papers published on a yearly basis
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TL;DR: In this paper, the authors report tunneling through the layered magnetic insulator CrI3 as a function of temperature and applied magnetic field and electrically detect the magnetic ground state and interlayer coupling and observe a field-induced metamagnetic transition.
Abstract: Magnetic insulators are a key resource for next-generation spintronic and topological devices The family of layered metal halides promises ultrathin insulating multiferroics, spin liquids, and ferromagnets, but new characterization methods are required to unlock their potential Here, we report tunneling through the layered magnetic insulator CrI3 as a function of temperature and applied magnetic field We electrically detect the magnetic ground state and inter-layer coupling and observe a field-induced metamagnetic transition The metamagnetic transition results in magnetoresistances of 95%, 300%, and 550% for bilayer, trilayer, and tetralayer CrI3 barriers, respectively We further measure inelastic tunneling spectra for our junctions, unveiling a rich spectrum of collective magnetic excitations (magnons) in CrI3 Our results establish vertical tunneling as a versatile probe of magnetism in atomically thin insulators
159 citations
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TL;DR: In this paper, the authors construct a family of solutions in IIB supergravity theory which are time-dependent or depend on a light-like coordinate and can be thought of as deformations of the dual gauge theory.
Abstract: We construct a family of solutions in IIB supergravity theory. These are time-dependent or depend on a light-like coordinate and can be thought of as deformations of ${\mathrm{AdS}}_{5}\ifmmode\times\else\texttimes\fi{}{S}^{5}$. Several of the solutions have singularities. The light-like solutions preserve 8 supersymmetries. We argue that these solutions are dual to the $\mathcal{N}=4$ gauge theory in a $3+1$ dimensional space-time with a metric and a gauge coupling that is varying with time or the light-like direction, respectively. This identification allows us to map the question of singularity resolution to the dual gauge theory.
159 citations
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TL;DR: In this paper, a simple method of constructing general conformally invariant three point functions of operators of various spins in three dimensions is presented, where all parity-preserving structures for conformally-invariant 3-point functions of higher spin conserved currents can be realized by free fields, whereas there is at most one parity violating structure for each set of spins, which is not realized by Free Fields.
Abstract: In this note we present a simple method of constructing general conformally invariant three point functions of operators of various spins in three dimensions. Upon further imposing current conservation conditions, we find new parity violating structures for the three point functions involving either the stress-energy tensor, spin one currents, or higher spin currents. We find that all parity preserving structures for conformally invariant three point functions of higher spin conserved currents can be realized by free fields, whereas there is at most one parity violating structure for three point functions for each set of spins, which is not realized by free fields.
159 citations
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TL;DR: Using fluorescence correlation spectroscopy, Wang et al. as mentioned in this paper showed that Aβ1-40 precipitates in vitro only if the dissolved concentration is > 14 μM, after which the size distribution of Aβ monomer/oligomers in the solution phase becomes stationary in time and independent of the starting Aβ concentration.
Abstract: Precipitation of the 39−43-residue amyloid β peptide (Aβ) is a crucial factor in Alzheimer's disease (AD). In normal as well as in AD-afflicted brain, the Aβ concentration is estimated to be a few nanomolar. Here we show that Aβ1-40 precipitates in vitro only if the dissolved concentration is >14 μM. Using fluorescence correlation spectroscopy, we further show that the precipitation is complete in 1 day, after which the size distribution of Aβ monomer/oligomers in the solution phase becomes stationary in time and independent of the starting Aβ concentration. Mass spectra confirm that both the solution phase and the coexisting precipitate contain chemically identical Aβ molecules. Incubation at 68 °C for 1 h reduces the solubility by <12%. Together, these results show that the thermodynamic saturation concentration (Csat) of Aβ1-40 in phosphate-buffered saline (PBS) at pH 7.4 has a well-defined lower limit of 15.5 ± 1 μM. Divalent metal ions (believed to play a role in AD) at near-saturation concentrations...
158 citations
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TL;DR: The malignant potential of oral lichen planus was assessed on the basis of observations in 722 patients found among 27,599 individuals examined in various epidemiologic studies in Kerala, Ernakulam district, India and the disease did not appear to be innocuous either.
Abstract: The malignant potential of oral lichen planus was assessed on the basis of observations in 722 patients found among 27,599 individuals examined in various epidemiologic studies in Kerala, Ernakulam district, India. Seven hundred and two patients with oral lichen planus were re-examined annually over a 10-year period with a mean observation period of 5.1 years. Most of the lesions (93%) were observed among tobacco users. Carcinoma developed in 3 (0.4%) patients with oral lichen planus. Clinically, all 3 had atrophic components in their lesions, and all were tobacco users. The relative risk of a lichen planus developing oral cancer compared to a tobacco user was estimated as 3.3. However, this relative risk was not significant. Histologically, 74% of the 94 biopsies from oral lichen planus showed epithelial atrophy. Two of the 3 in whom cancer developed also showed epithelial atrophy. It is felt that epithelial atrophy probably renders the mucosa more vulnerable to the carcinogenic action of tobacco. Although this study could not confirm the precancerous nature of this disease with a high degree of certainty, the disease did not appear to be innocuous either.
158 citations
Authors
Showing all 7857 results
Name | H-index | Papers | Citations |
---|---|---|---|
Pulickel M. Ajayan | 176 | 1223 | 136241 |
Suvadeep Bose | 154 | 960 | 129071 |
Subir Sarkar | 149 | 1542 | 144614 |
Sw. Banerjee | 146 | 1906 | 124364 |
Dipanwita Dutta | 143 | 1651 | 103866 |
Ajit Kumar Mohanty | 141 | 1124 | 93062 |
Tariq Aziz | 138 | 1646 | 96586 |
Andrew Mehta | 137 | 1444 | 101810 |
Suchandra Dutta | 134 | 1265 | 87709 |
Kajari Mazumdar | 134 | 1295 | 94253 |
Bobby Samir Acharya | 133 | 1121 | 100545 |
Gobinda Majumder | 133 | 1523 | 87732 |
Eric Conte | 132 | 1206 | 84593 |
Prashant Shukla | 131 | 1341 | 85287 |
Alessandro Montanari | 131 | 1387 | 93071 |