Design and Synthesis of Novel Materials for Spin Caloritronic Devices

Project Personnel

Gregory Fiete

Principal Investigator

Northeastern University

Email

Chia-Ling Chien

Johns Hopkins University

Email

Jianshi Zhou

University of Texas, Austin

Email

Funding Divisions

Division of Materials Research (DMR), Office of Multidisciplinary Activities (OMA), Electrical, Communications and Cyber Systems (ECCS)

Microelectronics, which has propelled modern technologies to unprecedented levels, has been severely hampered by the intense Joule heating generated by the motion of electrical charge carriers. A new approach exploits pure spin currents in devices that use a minimum of electrical charge carriers, thus generating minimal heat in metals and virtually no heat in magnetic insulators, which are charge-carrier free. The spin Seebeck effect (SSE) allows one to generate a pure spin current from a temperature gradient in a magnetic insulator. The SSE, experimentally discovered only a few years ago, has lead to a burgeoning new field known as spin caloritronics, which offers new strategies for the conversion of waste heat to electricity as well as thermal management in electronic devices. This project, through close theory/experiment interactions, will focus on the fundamental understanding of the SSE effect and will explore new ferromagnetic and antiferromagnetic insulators for advancing spin caloritronic phenomena and devices.

Publications

Negligible spin–charge conversion in Bi films and Bi/Ag(Cu) bilayers
D. Yue, W. Lin, and C. L. Chien
5/1/2021
Direct driving of electronic and phononic degrees of freedom in a honeycomb bilayer with infrared light
M. Rodriguez-Vega, M. Vogl, and G. A. Fiete
12/22/2021
Group theory study of the vibrational modes and magnetic order in the topological antiferromagnet MnBi2Te4
M. Rodriguez-Vega, A. Leonardo, and G. A. Fiete
9/9/2020
Intrinsic magnon Nernst effect in pyrochlore iridate thin films
B. Ma, and G. A. Fiete
11/9/2021
Behavior of superconductivity in a Pb/Ag heterostructure
H. Nam, C. Zhang, W. Lee, S. Zhu, H. Gao, Q. Niu, G. A. Fiete, and C. Shih
9/6/2019
Low-frequency and Moiré–Floquet engineering: A review
M. Rodriguez-Vega, M. Vogl, and G. A. Fiete
12/1/2021
Deep learning of deformation-dependent conductance in thin films: Nanobubbles in graphene
J. G. Nedell, J. Spector, A. Abbout, M. Vogl, and G. A. Fiete
2/24/2022
Floquet engineering of topological transitions in a twisted transition metal dichalcogenide homobilayer
M. Vogl, M. Rodriguez-Vega, B. Flebus, A. H. MacDonald, and G. A. Fiete
1/28/2021
Longitudinal spin Seebeck effect in pyrochlore iridates with bulk and interfacial Dzyaloshinskii-Moriya interaction
B. Ma, B. Flebus, and G. A. Fiete
1/6/2020
Floquet engineering of twisted double bilayer graphene
M. Rodriguez-Vega, M. Vogl, and G. A. Fiete
9/25/2020
Effect of demagnetization factors on spin current transport
P. Wu, Y. Chan, T. Hung, Y. Zhang, D. Qu, T. Chuang, C. L. Chien, and S. Huang
11/16/2020
Spin-to-Charge Conversion in Bi Films and Bi/Ag Bilayers
D. Yue, W. Lin, J. Li, X. Jin, and C.  . Chien
7/16/2018
Incoherent spin pumping from YIG single crystals
Y. S. Chen, J. G. Lin, S. Y. Huang, and C. L. Chien
6/12/2019
Electronic structure and magnetic exchange interactions of Cr-based van der Waals ferromagnets. A comparative study between CrBr3 and Cr2Ge2Te6
A. O. Fumega, S. Blanco-Canosa, H. Babu-Vasili, P. Gargiani, H. Li, J. Zhou, F. Rivadulla, and V. Pardo
1/1/2020
Structural distortions in rare-earth transition-metal oxide perovskites under high pressure
J. -. Zhou
6/4/2020
Suppression of the antiferromagnetic metallic state in the pressurized MnBi2Te4 single crystal
K. Y. Chen, B. S. Wang, J. -. Yan, D. S. Parker, J. -. Zhou, Y. Uwatoko, and J. -. Cheng
9/3/2019
Pure spin current phenomena
S. Y. Huang, D. Qu, T. C. Chuang, C. C. Chiang, W. Lin, and C. L. Chien
11/9/2020
Spin freezing into a disordered state in CaFeTi2O6 synthesized under high pressure
X. Li, W. M. Xu, M. A. McGuire, Y. Cho, M. C. Downer, Y. Wan, X. Y. Li, Z. Y. Li, Q. Cui, J. -. Cheng, J. B. Goodenough, and J. -. Zhou
8/3/2018
High pressure synthesis and characterization of the pyrochlore Dy2Pt2O7: A new spin ice material*
Q. Cui, Y. Cai, X. Li, Z. Dun, P. Sun, J. Zhou, H. Zhou, and J. Cheng
4/1/2020
Effective Floquet Hamiltonians for periodically driven twisted bilayer graphene
M. Vogl, M. Rodriguez-Vega, and G. A. Fiete
6/5/2020
Spin-phonon interaction in yttrium iron garnet
K. S. Olsson, J. Choe, M. Rodriguez-Vega, G. Khalsa, N. A. Benedek, J. He, B. Fang, J. Zhou, G. A. Fiete, and X. Li
7/1/2021
Light-Driven Topological and Magnetic Phase Transitions in Thin Layer Antiferromagnets
M. Rodriguez-Vega, Z. Lin, A. Leonardo, A. Ernst, M. G. Vergniory, and G. A. Fiete
5/4/2022
Analog of Hamilton-Jacobi theory for the time-evolution operator
M. Vogl, P. Laurell, A. D. Barr, and G. A. Fiete
7/29/2019
Influence of Nanosize Hole Defects and their Geometric Arrangements on the Superfluid Density in Atomically Thin Single Crystals of Indium Superconductor
M. Liu, H. Nam, J. Kim, G. A. Fiete, and C. Shih
9/17/2021
Antiferromagnetic insulators with tunable magnon-polaron Chern numbers induced by in-plane optical phonons
B. Ma, and G. A. Fiete
3/3/2022
Large Anomalous Nernst Effect in a van der Waals Ferromagnet Fe3GeTe2
J. Xu, W. A. Phelan, and C. Chien
10/29/2019
Resummation of the Holstein-Primakoff expansion and differential equation approach to operator square roots
M. Vogl, P. Laurell, H. Zhang, S. Okamoto, and G. A. Fiete
11/17/2020
PTCDA Molecular Monolayer on Pb Thin Films: An Unusual π -Electron Kondo System and Its Interplay with a Quantum-Confined Superconductor
S. Lu, H. Nam, P. Xiao, M. Liu, Y. Guo, Y. Bai, Z. Cheng, J. Deng, Y. Li, H. Zhou, G. Henkelman, G. A. Fiete, H. Gao, A. H. MacDonald, C. Zhang, and C. Shih
10/29/2021
Strongly correlated and topological states in [111] grown transition metal oxide thin films and heterostructures
J. Chakhalian, X. Liu, and G. A. Fiete
5/1/2020
Floquet engineering of interlayer couplings: Tuning the magic angle of twisted bilayer graphene at the exit of a waveguide
M. Vogl, M. Rodriguez-Vega, and G. A. Fiete
6/5/2020
Evidence of topological boundary modes with topological nodal-point superconductivity
A. K. Nayak, A. Steinbok, Y. Roet, J. Koo, G. Margalit, I. Feldman, A. Almoalem, A. Kanigel, G. A. Fiete, B. Yan, Y. Oreg, N. Avraham, and H. Beidenkopf
10/25/2021
Real-time simulation of light-driven spin chains on quantum computers
M. Rodriguez-Vega, E. Carlander, A. Bahri, Z. Lin, N. A. Sinitsyn, and G. A. Fiete
3/11/2022
Interfacial spin Seebeck effect in noncollinear magnetic systems
B. Flebus, Y. Tserkovnyak, and G. A. Fiete
6/7/2019
Pure Spin Current and Magnon Chemical Potential in a Nonequilibrium Magnetic Insulator
K. S. Olsson, K. An, G. A. Fiete, J. Zhou, L. Shi, and X. Li
5/6/2020
Momentum-space entanglement after a quench in one-dimensional disordered fermionic systems
R. Lundgren, F. Liu, P. Laurell, and G. A. Fiete
12/13/2019
Electron–Phonon and Spin–Lattice Coupling in Atomically Thin Layers of MnBi2Te4
J. Choe, D. Lujan, M. Rodriguez-Vega, Z. Ye, A. Leonardo, J. Quan, T. N. Nunley, L. Chang, S. Lee, J. Yan, G. A. Fiete, R. He, and X. Li
7/12/2021
Exotic physical properties in metallic perovskite LaRuO3 : Strong evidence for Hund metal
Z. Y. Li, X. Y. Li, J. M. He, M. A. McGuire, A. A. Aczel, J. A. Alonso, M. T. Fernandez-Diaz, and J. -. Zhou
8/8/2022
Phonon-mediated dimensional crossover in bilayer CrI3
M. Rodriguez-Vega, Z. Lin, A. Leonardo, A. Ernst, G. Chaudhary, M. G. Vergniory, and G. A. Fiete
8/21/2020
Monolayer 1T-NbSe 2 as a 2D-correlated magnetic insulator
M. Liu, J. Leveillee, S. Lu, J. Yu, H. Kim, C. Tian, Y. Shi, K. Lai, C. Zhang, F. Giustino, and C. Shih
11/19/2021
Magnons and magnetic fluctuations in atomically thin MnBi2Te4
D. Lujan, J. Choe, M. Rodriguez-Vega, Z. Ye, A. Leonardo, T. N. Nunley, L. Chang, S. Lee, J. Yan, G. A. Fiete, R. He, and X. Li
5/9/2022
Charge Disproportionation and Complex Magnetism in a PbMnO3 Perovskite Synthesized under High Pressure
X. Li, Z. Hu, Y. Cho, X. Li, H. Sun, L. Cong, H. Lin, S. Liao, C. Chen, A. Efimenko, C. J. Sahle, Y. Long, C. Jin, M. C. Downer, J. B. Goodenough, and J. Zhou
11/24/2020
Evidence for spin swapping in an antiferromagnet
W. Lin, J. He, B. Ma, M. Matzelle, J. Xu, J. Freeland, Y. Choi, D. Haskel, B. Barbiellini, A. Bansil, G. A. Fiete, J. Zhou, and C. L. Chien
5/16/2022
Weak ferromagnetism in perovskite oxides
J. -. Zhou, L. G. Marshall, Z. -. Li, X. Li, and J. -. He
9/16/2020
Magnetic Control of Soft Chiral Phonons in PbTe
A. Baydin, F. G.  . Hernandez, M. Rodriguez-Vega, A. K. Okazaki, F. Tay, G. T. Noe, I. Katayama, J. Takeda, H. Nojiri, P. H.  . Rappl, E. Abramof, G. A. Fiete, and J. Kono
2/15/2022
Observation of Vector Spin Seebeck Effect in a Noncollinear Antiferromagnet
J. Xu, J. He, J. -. Zhou, D. Qu, S. Huang, and C.  . Chien
9/9/2022
Out-of-plane magnetic anisotropy in bulk ilmeniteCoTiO3
M. Arruabarrena, A. Leonardo, M. Rodriguez-Vega, G. A. Fiete, and A. Ayuela
4/20/2022

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Research Highlights

Evidence for Spin Swapping in an Antiferromagnet
J. Zhou (U. Texas-Austin); G. Fiete (Northeastern U.); C.L. Chien (Johns Hopkins U.)
Measurement of a Magnon Chemical Potential
Gregory Fiete (Northeastern University) Jianshi Zhou (University of Texas-Austin)
Charge Disproportionation and Complex Magnetism in a PbMnO3Perovskite Synthesized under High Pressure
Jianshi Zhou (University of Texas-Austin)
Large Anomalous Nernst Effect in a van der Waals Ferromagnet Fe3GeTe2
C. L. Chien (Johns Hopkins University)
Evidence for Spin Swapping in an Antiferromagnet
J. Zhou (U. Texas-Austin); G. Fiete (Northeastern U.); C.L. Chien (Johns Hopkins U.)
Evidence for Spin Swapping in an Antiferromagnet
J. Zhou (U. Texas-Austin); G. Fiete (Northeastern U.); C.L. Chien (Johns Hopkins U.)

View All Highlights