Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Varaprasad, B. S. D. Ch. S"'
Autor:
Xu, chengchao, Zhang, Enbo, Yang, Bo-Yuan, Varaprasad, B. S. D. Ch. S., Laughlin, David E., Jian-Gang, Zhu
Heat transfer in nanocomposite materials has attracted great interest for various applications. Multilayer structures provide an important platform to study interfacial thermal transport and to engineer materials with ultralow thermal conductivity. H
Externí odkaz:
http://arxiv.org/abs/2406.13085
Autor:
Varaprasad, B. S. D. Ch. S., Xu, Chengchao, Reese, Brandon, Laughlin, David E., Jian-Gang, Zhu
Granular $\text{L}1_0$-FePt thin films with small columnar grains are essential for heat-assisted magnetic recording media. While hexagonal boron nitride(h-BN) has proven effective for promoting columnar FePt grains, we explored multilayer graphene a
Externí odkaz:
http://arxiv.org/abs/2404.14290
Publikováno v:
Scientific Reports, volume 13, Article number: 11087 (2023)
In this paper, we present an experimental study of $\text{L1}_0$-FePt granular films with crystalline/amorphous boron nitride (BN) grain boundary materials for heat assisted magnetic recording (HAMR). It is found that an adequate RF substrate bias yi
Externí odkaz:
http://arxiv.org/abs/2303.11411
Autor:
Xu, Chengchao, Zhou, Bing, Du, Tianxiang, Varaprasad, B. S. D. Ch. S, Laughlin, David E., JianGang, Zhu
Publikováno v:
APL Materials 10, 051105 (2022)
A systematic investigation has been performed to optimize the microstructure of $\mathrm{L1_0-FePt-SiO_x}$ granular thin film as recording media for heat-assisted magnetic recording. The FePt-BN nucleation layer, which is stable even at $700^\circ \t
Externí odkaz:
http://arxiv.org/abs/2203.03496
Grain-to-grain Curie temperature (Tc) variation in the media reduces signal-to-noise ratio due to its contribution in transition jitter noise, especially when average grain size is pushing down to increase the area storage capacity. A thermally insul
Externí odkaz:
http://arxiv.org/abs/1804.07892
Autor:
Xu, Chengchao1,2 (AUTHOR) chengchx@andrew.cmu.edu, Varaprasad, B. S. D. Ch. S.1,2 (AUTHOR), Laughlin, David E.1,2,3 (AUTHOR), Zhu, Jian-Gang1,2,3 (AUTHOR)
Publikováno v:
Scientific Reports. 7/8/2023, Vol. 13 Issue 1, p1-10. 10p.
Autor:
Bainsla, Lakhan, Mallick, A. I., Coelho, A. A., Nigam, A. K., Varaprasad, B. S. D. Ch. S., Takahashi, Y. K., Alam, Aftab, Suresh, K. G., Hono, K.
Publikováno v:
Journal of Magnetism and Magnetic materials, Vol. 394, page 82 (2015)
In this paper, we investigate CoFeCrAl alloy by means of various experimental techniques and ab-initio calculations to look for half-metallic nature. The alloy is found to exist in the cubic Heusler structure, with presence of B2 ordering. Saturation
Externí odkaz:
http://arxiv.org/abs/1501.05599
Autor:
Bainsla, Lakhan, Mallick, A. I., Raja, M. Manivel, Nigam, A. K., Varaprasad, B. S. D. Ch. S., Takahashi, Y. K., Alam, Aftab, Suresh, K. G., Hono, K.
Publikováno v:
Physical Review B, Vol. 91, page 104408 (2015)
Spin gapless semiconductors (SGS) form a new class of magnetic semiconductors, which has a band gap for one spin sub band and zero band gap for the other, and thus are useful for tunable spin transport based applications. In this paper, we report the
Externí odkaz:
http://arxiv.org/abs/1410.0177
Autor:
Bainsla, Lakhan, Suresh, K. G., Nigam, A. K., Raja, M. Manivel, Varaprasad, B. S. D. Ch. S., Takahashi, Y. K., Hono, K.
Publikováno v:
Journal of Applied Physics, Vol. 116, page 203902 (2014)
We report the structure, magnetic property and spin polarization of CoFeMnGe equiatomic quaternary Heusler alloy. The alloy was found to exist in the L21 structure with considerable amount of DO3 disorder. Thermal analysis result indicated the Curie
Externí odkaz:
http://arxiv.org/abs/1408.2408
Autor:
Lambert, Charles-Henri, Mangin, Stephane, Varaprasad, B. S. D. Ch. S., Takahashi, Y. K., Hehn, M., Cinchetti, M., Malinowski, G., Hono, K., Fainman, Y., Aeschlimann, M., Fullerton, Eric E.
The interplay of light and magnetism has been a topic of interest since the original observations of Faraday and Kerr where magnetic materials affect the light polarization. While these effects have historically been exploited to use light as a probe
Externí odkaz:
http://arxiv.org/abs/1403.0784