Dr. Daniel Jost

Contact
https://profiles.stanford.edu/daniel-jost
Assignments
  • Alumnus/Alumna: Raman Spectroscopy: Raman Spectroscopy in Correlated Systems
IDs

 

Daniel Jost was member of the Gross group at WMI as a Master and Ph.D. Student as well as postdoctoral researcher between 2015 and 2020.

Master Thesis: Spin Fluctuations and Superconductivity in Doped BaFe2As2 (2016)
Ph.D. Thesis: Cooper Pairing and Fluctuations in Fe-Based Superconductors (2019)

In his Ph.D. thesis, which was supervised by PD Dr. Rudi Hackl, Daniel Jost studied unconventional superconductivity generally occuring in proximity to magnetic phases. He used Raman spectroscopy to get insight into elementary excitations including pairing interactions. In this way, he could get information on the superconducting ground state and putative sub-leading pairing tendencies, which can be probed along with magnetic excitations and fluctuations. By Raman spectroscopy, he could identify the hierarchy of pairing channels in CaKFe4As4 and critical fluctuations in Ba(Fe1-xCox)2As2. The fluctuations he analysed using a novel method tailored for the low energy Raman response.

Daniel left WMI in September 2020 to become a Project Manager and Quantum Engineer at IQM Quantum Computers. In March 2021 he then joined  Stanford University (SLAC National Accelerator Laboratory) as a Postdoctoral Scholar.

 

Publications of Dr. Daniel Jost

2023

Polarized tip-enhanced Raman spectroscopy at liquid He temperature in ultrahigh vacuum using an off-axis parabolic mirror
Research Article | Review of Scientific Instruments 94, 063701  (2023)
Preprint: arXiv:2212.11655
Leander Peis, Ge He, Daniel Jost, Gabriele Rager, Rudi Hackl

2022

Quantum critical fluctuations in an Fe-based superconductor
Research Article | Comms. Phys. 5, 201  (2022)
Preprint: arXiv:2111.07521
Daniel Jost, Leander Peis, Ge He, Andreas Baum, Stephan Geprägs, Johanna C. Palmstrom, Matthias S. Ikeda, Ian R. Fisher, Thomas Wolf, Samuel Lederer, Rudi Hackl

2021

Tendencies of enhanced electronic nematicity in the Hubbard model and a comparison with Raman scattering on high-temperature superconductors
Research Article | arXiv:2101.07486
Tianyi Liu, Daniel Jost, Brian Moritz, Edwin W. Huang, Rudi Hackl, Thomas P. Devereaux

2020

Measuring the imaginary time dynamics of quantum materials
Research Article | Philosophical Magazine, Part B: Condensed Matter Physics 100, 2477  (2020)
S. Lederer, D. Jost, R. Hackl, E. Berg, S.A. Kivelson
Raman Study of Cooper Pairing Instabilities in (Li1−xFex)OHFeSe
Research Article | Physical Review Letters 125, 217002  (2020)
G. He, D. Li, D. Jost, A. Baum, P. P. Shen, X. L. Dong, Z. X. Zhao, and R. Hackl

2019

Cooper Pairing and Fluctuations in Fe-Based Superconductors
PHD Thesis | Technical University of Munich  (2019)
Daniel Jost

2018

Indication of subdominant d-wave interaction in superconducting CaKFe4As4
Research Article | Physical Review B 98, 020504  (2018)
D. Jost, J.-R. Scholz, U. Zweck, W. R. Meier, A. E. Böhmer, P. C. Canfield, N. Lazarevic and R. Hackl
Interplay of lattice, electronic and spin degrees of freedom in detwinned BaFe2As2: a Raman scattering study
Research Article | Physical Review B 98, 075113  (2018)
A. Baum, Ying Li, M. Tomic, N. Lazarevic, D. Jost, F. Löffler, B. Muschler, T. Böhm, J.-H. Chu, I. R. Fisher, R. Valentí, I. I. Mazin, R. Hackl
Microscopic origin of Cooper pairing in the iron-based superconductor Ba1-xKxFe2As2
Research Article | npj Quantum Materials 3, 48  (2018)
T. Böhm, F. Kretzschmar, A. Baum, M. Rehm, D. Jost, R. Hosseinian Ahangharnejhad, R. Thomale, C. Platt, T. A. Maier, W. Hanke, B. Moritz, T. P. Devereaux, D. J. Scalapino, S. Maiti, P. J. Hirschfeld, P. Adelmann, T. Wolf, Hai-Hu Wen, and R. Hackl

2017

Off-axis parabolic mirror optics for polarized Raman spectroscopy at low temperature
Research Article | Applied Physics Letters 110, 193504  (2017)
N. Chelwani, D. Hoch, D. Jost, B. Botka, J.-R. Scholz, R. Richter, M. Theodoridou, F. Kretzschmar, T. Böhm, K. Kamarás, and R. Hackl

2016

Critical spin fluctuations and the origin of nematic order in Ba(Fe1-xCox)2As2
Research Article | Nature Physics 12, 560-563  (2016)
F. Kretzschmar, T. Böhm, U. Karahasanovic, B. Muschler, A. Baum, D. Jost, J. Schmalian, S. Caprara, M. Grilli, C. Di Castro, J. G. Analytis, J.-H. Chu, I. R. Fisher, R. Hackl
Spin Fluctuations and Superconductivity in Doped BaFe2As2
Master Thesis | Technical University of Munich  (2016)
Daniel Jost
Superconductivity and fluctuations in Ba1-pKpFe2As2 and Ba(Fe1-nCon)2As2
Research Article | Phys. Status Solidi B 254, 1600308  (2016)
T. Böhm, R. Hosseinian Ahangharnejhad, D. Jost, A. Baum, B. Muschler, F. Kretzschmar, P. Adelmann, T. Wolf, H.-H. Wen, J.-H. Chu, I. R. Fisher, R. Hackl
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