We investigated the magnetotransport properties of mesoscopic platinum nanostructures (wires and rings) with sub-100 nm lateral dimensions at very low temperatures. Despite the strong spin–orbit interaction in platinum, oscillation of the conductance as a function of the external magnetic field due to quantum interference effects was found to appear. The oscillation was decomposed into Aharonov–Bohm periodic oscillations and aperiodic fluctuations of the conductance due to a magnetic flux piercing the loop of the ring and the metal wires forming the nanostructures, respectively. We also investigated the magnetotransport under different bias currents to explore the interplay between electron phase coherence and spin accumulation effects in strong spin–orbit conductors.
Skip Nav Destination
CHORUS
Article navigation
14 December 2020
Research Article|
December 14 2020
Observation of quantum interference conductance fluctuations in metal rings with strong spin–orbit coupling
R. Ramos
;
R. Ramos
a)
1
WPI-Advanced Institute for Materials Research, Tohoku University
, Sendai 980-8577, Japan
2
Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química-Física, Universidade de Santiago de Compostela
, Santiago de Compostela 15782, Spain
a)Author to whom correspondence should be addressed: r.ramos@usc.es
Search for other works by this author on:
T. Makiuchi
;
T. Makiuchi
3
Department of Applied Physics, The University of Tokyo
, Tokyo 113-8656, Japan
Search for other works by this author on:
T. Kikkawa
;
T. Kikkawa
1
WPI-Advanced Institute for Materials Research, Tohoku University
, Sendai 980-8577, Japan
3
Department of Applied Physics, The University of Tokyo
, Tokyo 113-8656, Japan
4
Institute for Materials Research, Tohoku University
, Sendai 980-8577, Japan
Search for other works by this author on:
S. Daimon
;
S. Daimon
3
Department of Applied Physics, The University of Tokyo
, Tokyo 113-8656, Japan
Search for other works by this author on:
K. Oyanagi
;
K. Oyanagi
4
Institute for Materials Research, Tohoku University
, Sendai 980-8577, Japan
5
Faculty of Science and Engineering, Iwate University
, Morioka 020-8551, Japan
Search for other works by this author on:
E. Saitoh
E. Saitoh
1
WPI-Advanced Institute for Materials Research, Tohoku University
, Sendai 980-8577, Japan
3
Department of Applied Physics, The University of Tokyo
, Tokyo 113-8656, Japan
4
Institute for Materials Research, Tohoku University
, Sendai 980-8577, Japan
6
Center for Spintronics Research Network, Tohoku University
, Sendai 980-8577, Japan
7
Advanced Science Research Center, Japan Atomic Energy Agency
, Tokai 319-1195, Japan
Search for other works by this author on:
a)Author to whom correspondence should be addressed: r.ramos@usc.es
Appl. Phys. Lett. 117, 242402 (2020)
Article history
Received:
October 03 2020
Accepted:
November 21 2020
Citation
R. Ramos, T. Makiuchi, T. Kikkawa, S. Daimon, K. Oyanagi, E. Saitoh; Observation of quantum interference conductance fluctuations in metal rings with strong spin–orbit coupling. Appl. Phys. Lett. 14 December 2020; 117 (24): 242402. https://doi.org/10.1063/5.0031708
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Pay-Per-View Access
$40.00
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Era of entropy: Synthesis, structure, properties, and applications of high-entropy materials
Christina M. Rost, Alessandro R. Mazza, et al.
Piezoelectric phononic integrated circuits
Krishna C. Balram
Related Content
Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films
Appl. Phys. Lett. (August 2020)
Probing surface states: A study of UCF and WAL in Bi1.9Sb0.1Te2Se topological insulator
AIP Advances (December 2023)
Evaluation of edge domains in giant magnetoresistive junctions
Appl. Phys. Lett. (April 2021)
Electron transport properties of a narrow-bandgap semiconductor Bi2O2Te nanosheet
Appl. Phys. Lett. (June 2022)