caa a22 4500 605545561 CHVBK 20210128100936.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s00723-015-0672-5 doi (NATIONALLICENCE)springer-10.1007/s00723-015-0672-5 Microstrip Resonators and Broadband Lines for X-band EPR Spectroscopy of Molecular Nanomagnets [Elektronische Daten] [Alberto Ghirri, Claudio Bonizzoni, Mattia Righi, Federico Fedele, Grigore Timco, Richard Winpenny, Marco Affronte] We present a practical setup to perform continuous-wave X-band electron paramagnetic resonance spectroscopy by using planar microstrip lines and general purpose instrumentation. We fabricated Ag/alumina and Nb/sapphire microstrip resonators and transmission lines and compared their performance down to 2K and under applied magnetic field. We used these devices to study single crystals of molecular Cr $$_{3}$$ 3 nanomagnets. By means of X-band planar resonators we measured angle-dependent spectra at fixed frequency, while broadband transmission lines were used to measure continuous wave spectra with varying frequency in the range 2-25GHz. The spectra acquired at low temperatures allowed to extract the essential parameters of the low-lying energy levels of Cr $$_{3}$$ 3 and demonstrate that this method is particularly suitable to study small crystals of molecular nanomagnets. Springer-Verlag Wien, 2015 Ghirri Alberto CNR-Istituto Nanoscienze, via Campi 213/a, 41125, Modena, Italy aut Bonizzoni Claudio CNR-Istituto Nanoscienze and Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio E, via Campi 213/a, 41125, Modena, Italy aut Righi Mattia Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio E, via Campi 213/a, 41125, Modena, Italy aut Fedele Federico Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio E, via Campi 213/a, 41125, Modena, Italy aut Timco Grigore School of Chemistry and Photon Science Institute, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK aut Winpenny Richard School of Chemistry and Photon Science Institute, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK aut Affronte Marco CNR-Istituto Nanoscienze and Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio E, via Campi 213/a, 41125, Modena, Italy aut Applied Magnetic Resonance Springer Vienna 46/7(2015-07-01), 749-756 0937-9347 46:7<749 2015 46 723 https://doi.org/10.1007/s00723-015-0672-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00723-015-0672-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ghirri Alberto CNR-Istituto Nanoscienze, via Campi 213/a, 41125, Modena, Italy aut NATIONALLICENCE 700 1- Bonizzoni Claudio CNR-Istituto Nanoscienze and Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio E, via Campi 213/a, 41125, Modena, Italy aut NATIONALLICENCE 700 1- Righi Mattia Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio E, via Campi 213/a, 41125, Modena, Italy aut NATIONALLICENCE 700 1- Fedele Federico Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio E, via Campi 213/a, 41125, Modena, Italy aut NATIONALLICENCE 700 1- Timco Grigore School of Chemistry and Photon Science Institute, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK aut NATIONALLICENCE 700 1- Winpenny Richard School of Chemistry and Photon Science Institute, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK aut NATIONALLICENCE 700 1- Affronte Marco CNR-Istituto Nanoscienze and Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio E, via Campi 213/a, 41125, Modena, Italy aut NATIONALLICENCE 773 0- Applied Magnetic Resonance Springer Vienna 46/7(2015-07-01), 749-756 0937-9347 46:7<749 2015 46 723