Dheerendra Singh Bhandari

Forskning

I am part of the Computational Magnetic Metamaterials (COMET) research group

Publikasjoner

The controlled manipulation of emergent monopole charges in dipolar-coupled nanomagnetic systems—collectively known as
artificial spin ice (ASI)—remains a central challenge. While global magnetic fields offer a simple means of driving monopole motion,
they typically induce uncontrolled avalanche-like switching, erasing encoded information and limiting device reliability. Achieving
deterministic, stepwise monopole propagation is therefore highly desirable for ASI-based information computing and reconfigurable
magnonics. In this work, we demonstrate robust, reconfigurable control of monopole propagation in square ASI using an astroid-
clocking protocol. X-ray magnetic circular dichroism (XMCD) and magneto-optical Kerr effect (MOKE) imaging, supported by
numerical simulations, reveal reliable single-step monopole motion, access to a large number of ASI microstates, and dynamic
control over distinct monopole trajectories. Our approach enables deterministic monopole control
using global fields and demonstrates a versatile pathway toward functional ASI-based devices for data storage, magnetricity, and
unconventional computing.

2025

Bhandari, Dheerendra Singh; Strømberg, Anders; Breivik, Ida; Penty, Arthur George; Jensen, Johannes H.; Foerster, Michael. (2025) Clocking emergent magnetic monopoles in square artificial spin ice. Physical review B (PRB)
Vitenskapelig artikkel

Tidsskriftspublikasjoner

Bhandari, Dheerendra Singh; Strømberg, Anders; Breivik, Ida; Penty, Arthur George; Jensen, Johannes H.; Foerster, Michael. (2025) Clocking emergent magnetic monopoles in square artificial spin ice. Physical review B (PRB)
Vitenskapelig artikkel

Undervisning

TFE4161 Photonics I laboratory (Autumn 2024, 2025)

TFE4161 Photonics II laboratory (Spring 2024, 2025, 2026)

TFE4169 Nanoelectronics (Autumn 2023, 2024, 2025)

Formidling

Clocking of Emergent Monopole

Best Poster Award at FASI 2025 Frontiers in Artificial Spin Ice, June 11th - 13th 2025

2025

Poster

Bhandari, Dheerendra Singh; Strømberg, Anders; Breivik, Ida; Penty, Arthur George; Jensen, Johannes Høydahl; Foerster, Michael. (2025) Clocking of emergent magnetic monopoles in Square ASI. Frontiers in Artificial Spin Ice 2025 , Zurich 2025-06-10 - 2025-06-12

2024

Vitenskapelig foredrag

Bhandari, Dheerendra Singh; Strømberg, Anders; Breivik, Ida; Penty, Arthur George; Jensen, Johannes Høydahl; Foerster, Micheal. (2024) Clocking Emergent magnetic monopole in square Artificial Spin Ice. 25th International Colloquium on Magnetic Films and Surfaces -ICMFS2024 , University of Perugia, Perugia, Italy 2024-07-07 - 2024-07-12

2023

Poster

Bhandari, Dheerendra Singh; Breivik, Ida; Folven, Erik. (2023) Field-controlled Magnetic Monopole Propagation in Square Artificial Spin Ice. Norwegian NanoSymposium , Trondheim 2023-11-28 - 2023-11-29

Språkvelger

Dheerendra Singh Bhandari