Spin solitons and spin waves in chiral and racemic molecular based ferrimagnets / Morgunov R.,Kirman M. V.,Inoue K.,Tanimoto Y.,Kishine J.,Ovchinnikov A. S.,Kazakova O. // PHYSICAL REVIEW B. - 2008. - V. 77, l. 18.

ISSN/EISSN:

1098-0121 / 1550-235X

Type:

Article

Abstract:

Resonant modes corresponding to a spin-soliton resonance (SSR) and a spin-wave resonance (SWR) have been detected and distinguished in the spectra of the electron spin resonance (ESR) of two-dimensional {[}Cr(CN)(6)]{[}Mn(S)-pnH-(H2O)]H2O {[}green needle (GN)] chiral single crystals and three-dimensional {[}Mn\{(R/S)-pn\}](2) {[}Mn\{(R/S)-pn\}(2)(H2O]{[}Cr(CN)(6)](2) {[}yellow needle (YN)] single crystals. The spin-soliton resonance has been detected in the ESR spectrum of the chiral YN crystals and has not been observed in the spectra of the racemic GN crystals. This is a direct experimental evidence that the collective spin excitations in molecular magnetic crystals depend on the crystal chirality. The temperature and the angular dependences of the effective exchange constants obtained from the ESR spectra are in good agreement with the experimental data received by means of a superconducting quantum interference device magnetometry. The temperature dependencies of the magnetic susceptibilities corresponding to the integral intensities of the resonance lines are different for the SSR and the SWR contributions to the ESR spectrum. It enables us to distinguish the nature of the resonant lines in the intermixture of two sequences of the resonance lines, which have been measured for arbitrary orientations of the static external magnetic field.

Author keywords:

RESONANCE; MAGNETS; MODES

DOI:

10.1103/PhysRevB.77.184419

Web of Science ID:

ISI:000256885300067

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAY
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	184419
EISSN	1550-235X
Keywords-Plus	RESONANCE; MAGNETS; MODES
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Kishine, Jun-ichiro/C-1743-2015 INOUE, Katsuya/E-9221-2010 Kirman, Marina/F-2936-2014 Ovchinnikov, Alexander/B-9906-2009
ORCID-Numbers	Kishine, Jun-ichiro/0000-0001-6162-7067 Kazakova, Olga/0000-0002-8473-2414 Ovchinnikov, Alexander/0000-0002-1173-9260 Morgunov, Roman/0000-0002-4859-2733
Number-of-Cited-References	22
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	13
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	315MY