HYBRID EVENT: You can participate in person at Orlando, USA or Virtually from your home or work.

6th Edition of World Nanotechnology Conference

April 24-25, 2023

April 24 -26, 2023 | Orlando, USA
World Nano 2023

Abid Hussain

Abid Hussain, Speaker at Nanotechnology Conferences
Inter University Accelerator Center, India
Title : Structure, magnetic and transport properties of nano-crystalline thin films of NiCoCrFePd high entropy alloy


High entropy alloy (HEA) films having applications in various fields ranging from harsh environments to electronic devices. [1,2] Nanostructured high entropy thin films of Heuslers alloys found promising materials for room temperature spin gapless semiconductors [3-5]. E-beam evaporation technique is used to synthesized the thin film of NiCoCrFePd HEA at room temperatures and subsequently annealed at different temperatures. Further, the temperature dependent XRD revealed strongly (111) oriented face center cubic (FCC) structure of NiCoCrFePd thin films with no phase transformation and excellent stability down to 30 K temperature. Rutherford backscattering spectroscopy (RBS) along with energy dispersive X-ray (EDX) spectroscopy confirmed equiatomic composition with small deviation (?2 at.%) from the equiatomic target. Elemental mapping indicated the homogenous distribution of constituent elements with no phase segregations. M-T measurement conforms the ferromagnetic nature at room temperature in all the samples with the critical temperature (TC) decreases from 431 K to 375 K upon annealing. The temperature dependent resistivity measurement shows semiconducting behavior, which gets enhanced with increases in the annealing temperature. Measurement of nearly temperature independent carrier concentration (n) and vanishing thermopower indicates the spin gapless semiconducting behavior (SGS) in these films with hole as a dominating carrier. These class of recently discovered materials exhibits finite energy band gaps for one spin channel and block the other spin channel. The fermi energies of 3.94 eV, 2.14 eV, and 1.28 eV corresponding to A-400, A-500, and A-600 evaluated from the thermopower measurement shows an decrease in fermi energy with the annealing temperature.

Audience Take Away:

  • Exotic transport properties with spintronics application of NiCoCrFePd thin films.
  • Understanding the anomalous transport behavior of nanocrystalline HEA films.
  • Opens new filed of paradigm for the applicability of HEA films in spintronics applications.


Mr. Abid Hussain has earned his bachelor’s degree from the Physics Department, Aligarh Muslim University, Aligarh, UP, India. He joined the department of physics and astrophysics, University of Delhi for his master degree in physics and obtained his degree in 2016 with specialization in Laser and Spectroscopy. Later he qualified the national level junior research fellow (JRF) in 2018 and joined at Inter university accelerator Center (IUAC), New Delhi, India for his PhD degree. Currently he working in the field of fabrication and properties of high entropy alloys with Dr. Saif A. Khan from IUAC and Dr. P.K. Kulriya from Jawaharlal Nehru University (JNU) new Delhi. He has co-authored two reputed papers with primary author under revision in journal of Materials Science and Engineering-A. He is in 5thyear of PhD and about to submit his thesis work very soon.