Detail publikace

High-frequency EPR: current state and perspectives

SOJKA, A. ŠEDIVÝ, M. LAGUTA, O. MARKO, A. SANTANA, V. NEUGEBAUER, P.

Originální název

High-frequency EPR: current state and perspectives

Anglický název

High-frequency EPR: current state and perspectives

Jazyk

en

Originální abstrakt

Starting from its discovery, electron paramagnetic resonance (EPR) is a constantly developing technique following technological advances in generation and detection of microwaves, creation of strong magnetic fields, and fast digitalization, among others. In this chapter, we discuss developments in the field of high-frequency EPR (HFEPR) with a special focus on experiments in frequency domain compared to traditional field domain EPR. We present significant progress in the experimental determination of Zeeman dia- grams (frequency vs. field EPR maps) and discuss the advantages of HFEPR for investi- gating high-spin systems, particularly single-molecular magnets (SMMs). Besides, we dedicate a section to discuss the advances in the studies of the cyclotron resonance in thin-films and modern solid-state materials like graphene (graphite). Furthermore, the importance of HFEPR for dynamic nuclear polarisation (DNP) is discussed. At last, we demonstrate the possibility to access very short relaxation times (B1 ns) by implementing frequency rapid scans, emphasizing the power of frequency domain EPR. This technique allowed to perform, for the first time, multi-frequency relaxation studies in a single spectrometer in frequencies above 100 GHz.

Anglický abstrakt

Starting from its discovery, electron paramagnetic resonance (EPR) is a constantly developing technique following technological advances in generation and detection of microwaves, creation of strong magnetic fields, and fast digitalization, among others. In this chapter, we discuss developments in the field of high-frequency EPR (HFEPR) with a special focus on experiments in frequency domain compared to traditional field domain EPR. We present significant progress in the experimental determination of Zeeman dia- grams (frequency vs. field EPR maps) and discuss the advantages of HFEPR for investi- gating high-spin systems, particularly single-molecular magnets (SMMs). Besides, we dedicate a section to discuss the advances in the studies of the cyclotron resonance in thin-films and modern solid-state materials like graphene (graphite). Furthermore, the importance of HFEPR for dynamic nuclear polarisation (DNP) is discussed. At last, we demonstrate the possibility to access very short relaxation times (B1 ns) by implementing frequency rapid scans, emphasizing the power of frequency domain EPR. This technique allowed to perform, for the first time, multi-frequency relaxation studies in a single spectrometer in frequencies above 100 GHz.

Dokumenty

BibTex


@inbook{BUT166179,
  author="Antonín {Sojka} and Matúš {Šedivý} and Oleksii {Laguta} and Andriy {Marko} and Vinicius Tadeu {Santana} and Petr {Neugebauer}",
  title="High-frequency EPR: current state and
perspectives",
  annote="Starting from its discovery, electron paramagnetic resonance (EPR) is a constantly
developing technique following technological advances in generation and detection of
microwaves, creation of strong magnetic fields, and fast digitalization, among others. In
this chapter, we discuss developments in the field of high-frequency EPR (HFEPR) with a
special focus on experiments in frequency domain compared to traditional field domain
EPR. We present significant progress in the experimental determination of Zeeman dia-
grams (frequency vs. field EPR maps) and discuss the advantages of HFEPR for investi-
gating high-spin systems, particularly single-molecular magnets (SMMs). Besides, we
dedicate a section to discuss the advances in the studies of the cyclotron resonance in
thin-films and modern solid-state materials like graphene (graphite). Furthermore, the
importance of HFEPR for dynamic nuclear polarisation (DNP) is discussed. At last, we
demonstrate the possibility to access very short relaxation times (B1 ns) by implementing
frequency rapid scans, emphasizing the power of frequency domain EPR. This technique
allowed to perform, for the first time, multi-frequency relaxation studies in a single
spectrometer in frequencies above 100 GHz.",
  address="The Royal Society of Chemistry",
  booktitle="Electron Paramagnetic Resonance",
  chapter="166179",
  doi="10.1039/9781839162534-00214",
  howpublished="print",
  institution="The Royal Society of Chemistry",
  year="2020",
  month="november",
  pages="214--252",
  publisher="The Royal Society of Chemistry",
  type="book chapter"
}