Magnetic field perturbations to a soft x-ray-activated Fe (II) molecular spin state transition

Authors

Guanhua Hao, University of Nebraska - LincolnFollow
Alpha T. N’diaye, Advanced Light Source, Berkeley
Thilini K. Ekanayaka, University of Nebraska–LincolnFollow
Ashley S. Dale, Indiana University-Purdue University Indianapolis
Xuanyuan Jiang, University of Nebraska–Lincoln
Esha Mishra, University of Nebraska–LincolnFollow
Corbyn Mellinger, University of Nebraska–LincolnFollow
Saeed Yazdani, Indiana University-Purdue University Indianapolis
John W. Freeland, The Advanced Photon Source
Jian Zhang, Lawrence Berkeley National Laboratory
Ruihua Cheng, Indiana University-Purdue University Indianapolis
Xiaoshan Xu, University of Nebraska-LincolnFollow
Peter Dowben, University of Nebraska - LincolnFollow

ORCID IDs

Ashley S. Dale https://orcid.org/0000-0001-8233-5258

Corbyn Mellinger https://orcid.org/0000-0001-7587-6240

Jian Zhang https://orcid.org/0000-0003-0274-0814

Peter A. Dowben https://orcid.org/0000-0002-2198-4710

Date of this Version

10-1-2021

Citation

Hao, G.; N’Diaye, A.T.; Ekanayaka, T.K.; Dale, A.S.; Jiang, X.; Mishra, E.; Mellinger, C.; Yazdani, S.; Freeland, J.W.; Zhang, J.; et al. Magnetic Field Perturbations to a Soft X-ray-Activated Fe (II) Molecular Spin State Transition. Magnetochemistry 2021, 7, 135. https://doi.org/10.3390/ magnetochemistry7100135

Comments

Copyright: © 2021 by the authors. CC-BY license

Abstract

The X-ray-induced spin crossover transition of an Fe (II) molecular thin film in the presence and absence of a magnetic field has been investigated. The thermal activation energy barrier in the soft X-ray activation of the spin crossover transition for [Fe{H₂B(pz)₂ }₂ (bipy)] molecular thin films is reduced in the presence of an applied magnetic field, as measured through X-ray absorption spectroscopy at various temperatures. The influence of a 1.8 T magnetic field is sufficient to cause deviations from the expected exponential spin state transition behavior which is measured in the field free case. We find that orbital moment diminishes with increasing temperature, relative to the spin moment in the vicinity of room temperature.