Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Arnab Sen Gupta"'
Autor:
Man-Rong Li, Emma E. McCabe, Peter W. Stephens, Mark Croft, Liam Collins, Sergei V. Kalinin, Zheng Deng, Maria Retuerto, Arnab Sen Gupta, Haricharan Padmanabhan, Venkatraman Gopalan, Christoph P. Grams, Joachim Hemberger, Fabio Orlandi, Pascal Manuel, Wen-Min Li, Chang-Qing Jin, David Walker, Martha Greenblatt
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Double corundum-related polar magnets are promising for multiferroic and magnetoelectric applications in spintronics, but are limited by the challenging design and synthesis. Here the authors report the synthesis of Mn2MnWO6 as well as its appealing
Externí odkaz:
https://doaj.org/article/6173fb90aa534c599693e0a616ed2f6b
Autor:
Mariola O. Ramirez, Tom T. A. Lummen, Irene Carrasco, Eftihia Barnes, Ulrich Aschauer, Dagmara Stefanska, Arnab Sen Gupta, Carmen de las Heras, Hirofumi Akamatsu, Martin Holt, Pablo Molina, Andrew Barnes, Ryan C. Haislmaier, Przemyslaw J. Deren, Carlos Prieto, Luisa E. Bausá, Nicola A. Spaldin, Venkatraman Gopalan
Publikováno v:
APL Materials, Vol 7, Iss 1, Pp 011103-011103-6 (2019)
Polar instabilities are well known to be suppressed on scaling materials down to the nanoscale, when the electrostatic energy increase at surfaces exceeds lowering of the bulk polarization energy. Surprisingly, here we report an emergent low symmetry
Externí odkaz:
https://doaj.org/article/d8298053414845b88b6be45ca717301a
Autor:
Carl H. Naylor, Chelsey Dorow, O'brien Kevin P, Kirby Maxey, Arnab Sen Gupta, Andy Hsiao, Tronic Tristan A, Penumatcha Ashish Verma, Scott B. Clendenning, Gosavi Tanay, Matthew V. Metz, Michael Christenson, Sudarat Lee, Robert L. Bristol, Uygar E. Avci, Alaan Urusa, A. A. Oni, Hui Zhu
Publikováno v:
IEEE Transactions on Electron Devices. 68:6592-6598
2-D-material channels enable ultimate scaling of MOSFET transistors and will help Moore's Law scaling for years. We demonstrate the state of both n- and p-MOSFETs using monolayer transition metal dichalcogenide (TMD) channels of sub-1 nm thickness an
Autor:
Venkatraman Gopalan, Kleyser Agueda Lopez, Nasim Alem, Hirofumi Akamatsu, Thomas E. Mallouk, Ritesh Uppuluri, Craig M. Brown, Arnab Sen Gupta, Huaiyu Wang
Publikováno v:
Chemistry of Materials. 31:4418-4425
Over the past few years, several studies have reported the existence of polar phases in n = 2 Ruddlesden–Popper layer perovskites by trilinear coupling of oxygen octahedral rotations (OOR) and pola...
Autor:
Venkatraman Gopalan, James M. Rondinelli, Ryosuke Tsuji, Olivier Hernandez, Ko Mibu, Hirofumi Akamatsu, Koji Fujita, Suguru Yoshida, Haricharan Padmanabhan, Alexandra S. Gibbs, Katsuhisa Tanaka, Arnab Sen Gupta, Shunsuke Murai
Publikováno v:
Journal of the American Chemical Society. 140:15690-15700
Hybrid improper ferroelectricity, which utilizes nonpolar but ubiquitous rotational/tilting distortions to create polarization, offers an attractive route to the discovery of new ferroelectric and multiferroic materials because its activity derives f
Autor:
Mauricio Terrones, Hirofumi Akamatsu, Pengtao Xu, Zhong Lin, Jun Zhu, Jacob Shevrin, Thomas E. Mallouk, Arnab Sen Gupta, Venkatraman Gopalan, Ke Wang, Minh An T. Nguyen
Publikováno v:
RSC Advances. 8:9871-9878
The group VIb dichalcogenides (MX2, M = Mo, W; X= S, Se) have a layered molybdenite structure in which M atoms are coordinated by a trigonal prism of X atoms. Ternary solid solutions of MSxSe2−x were synthesized, microcrystals were grown by chemica
Autor:
Isao Tanaka, Minh An T. Nguyen, Hirofumi Akamatsu, Katsuhisa Tanaka, Thomas E. Mallouk, Megan E. Strayer, Koji Fujita, Venkatraman Gopalan, Forrest G. Brown, Saul H. Lapidus, Arnab Sen Gupta, Suguru Yoshida
Publikováno v:
Chemistry of Materials. 29:656-665
We report the observation of noncentrosymmetricity in the family of HRTiO4 (R = Eu, Gd, Dy) layered oxides possessing a Ruddlesden–Popper derivative structure, by second harmonic generation and synchrotron X-ray diffraction with the support of dens
Autor:
Koji Fujita, Hirofumi Akamatsu, James M. Rondinelli, Toshihiro Kuge, Venkatraman Gopalan, Katsuhisa Tanaka, Arnab Sen Gupta, Isao Tanaka
Publikováno v:
Physical Review Materials. 3
We demonstrate inversion symmetry breaking induced by oxygen octahedral rotations in layered perovskite oxides $\mathrm{K}{A}_{R}{\mathrm{TiO}}_{4}$ (${A}_{R}$ = rare earth) using a combined experimental and theoretical approach including synchrotron
Autor:
Suguru, Yoshida, Hirofumi, Akamatsu, Ryosuke, Tsuji, Olivier, Hernandez, Haricharan, Padmanabhan, Arnab, Sen Gupta, Alexandra S, Gibbs, Ko, Mibu, Shunsuke, Murai, James M, Rondinelli, Venkatraman, Gopalan, Katsuhisa, Tanaka, Koji, Fujita
Publikováno v:
Journal of the American Chemical Society. 140(46)
Hybrid improper ferroelectricity, which utilizes nonpolar but ubiquitous rotational/tilting distortions to create polarization, offers an attractive route to the discovery of new ferroelectric and multiferroic materials because its activity derives f
Autor:
Elizabeth C. Dickey, Matthew J. Burch, Ryan Haislmaier, Venkataraman Gopalan, Arnab Sen Gupta, Susan Trolier-McKinstry, Lauren M. Garten
Publikováno v:
Journal of the American Ceramic Society. 99:1645-1650
The development of barium strontium titanate-based tunable dielectrics is currently hindered by high losses in the paraelectric phase. Barium strontium titanate (BST) thin films and ceramics show a range of ferroelectric transition behavior, from nor