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Roshan S. Trivedi

As seen in: Nature
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Articles

Imaging of a van der Waals spin-orbit torque system using spin ensembles in hBN

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By Xi Zhang, Jingcheng Zhou, Chaowei Hu, Peiyu Cai, Kuangyin Deng, Chuangtang Wang, Nishkarsh Agarwal, Hanshang Jin, Faris Al-matouq, Roshan S. Trivedi, Senlei Li, Hanyi Lu, Zhigang Jiang, Valentin Taufour, Liuyan Zhao, Ran Cheng, Xiaodong Xu, Elton J. G. Santos, Jiun-Haw Chu, Chunhui Du, Hailong Wang, Stelo Xu, Sumedh Rathi
| Nature Verified
Abstract Recently, optically active spin defects embedded in two-dimensional (2D) van der Waals (vdW) crystals have emerged as a transformative quantum sensing platform to explore cutting-edge materials science. Taking advantage of excellent solid-state integrability, this new class of spin defects can be readily arranged in nanoscale proximity to target materials, showing great promise for realizing in-situ quantum sensing of microscopic spin and charge behaviors in vdW heterostructures.
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Trivalent titanium in high-titanium lunar ilmenite

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By Advik D. Vira, Katherine Burgess, Emily First, Mengkun Tian, Dean Kim, Tyler Farr, Harrison Lisabeth, Nobumichi Tamura, Brant Jones, Thomas M. Orlando, Zhigang Jiang, Keyes M. Eames, Roshan S. Trivedi, Gabriella K. Dotson, Emma R. Livernois, Phillip N. First
| Nature Verified
Abstract Lunar mare basalts are often rich in titanium, hosted predominantly within the mineral ilmenite (Fe2+Ti4+O3). Here, we examine ilmenite in a  ~ 3.8 billion-year-old mare basalt (Apollo rock 75035) using high-resolution electron microscopy and electron energy loss spectroscopy. A key finding is that 75035 ilmenite is itself enriched in Ti, beyond the end member of the conventional solid solution series.
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