传记

Chopra’s research is fundamental and focused on physics of magnetism and magnetic materials; evolution of coupled and uncoupled properties from quantum to semi-classical length scales; high-resolution micromagnetic imaging; phase transitions in multiferroics. 突破观察新现象障碍的关键研究策略是通过发展超高分辨率(纳米到微米范围)技术.

研究 highlights include discovery of non-Joulian magnets that cracked centuries old edifice of Joule’s paradigm on magnetostriction (Nature 2015); discovery of enhanced elastic properties approaching theoretical values in metals at Fermi length scale (PRB 2011, 2012); first direct proof of conductance quantization in metals (PRB 2010); discovery of surface energy based ‘Hume-Rothery’ rule for alloying at mesoscale (J. :. 理论物理., 2012); oscillatory magnetoresistance in quantum conductors (Nature materials, 2005); first observation of magneto-elastic twins in magnetic shape memory alloys strains (PRB, 2000); refining crystal structure of primary strengthening precipitates in aluminum-based aerospace alloys (found not to be structure of Bergman, 沃和鲍林, 哲学杂志通讯, 1995). Dr. 《皇冠体育app》杂志多次强调了乔普拉的研究, 科学, 科学新闻, 夫人, 经颅磁刺激, APS; Scientific American, NSF, 等.

研究兴趣: Non-Joulian magnets; magnetism and magnetic properties; micromagnetics; multiferroics; quantized conductance.

研究兴趣

• (磁性)材料跨长度尺度的力学
• 磁弹性效应和模量缺陷
• 材料机械性能的无损检测