Effect of uniaxial strain on a molecule-based ferrimagnet with crystal chirality

Tsuruta, Kazuki; Mito, Masaki; Deguchi, Hiroyuki; Takagi, Seishi; Yoshida, Yusuke; Inoue, Katsuya

doi:10.1016/j.poly.2011.05.014

Cited by 3 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Вторая гармоника χ (2) обычно применяется для анализа материалов, в которых есть спонтанная намагниченность [1,2]. Наконец третья гармоника χ (3) является сравнительно экзотической характеристикой, отличной от нуля в сравнительно редких случаях. Одним из примеров таких ситуаций являются спиновые стекла, где имеется локально кооперативное, но при этом разупорядоченное в среднем, направление спинов [5].…”

Section: методика экспериментов и образцыunclassified

“…Одним из примеров таких ситуаций являются спиновые стекла, где имеется локально кооперативное, но при этом разупорядоченное в среднем, направление спинов [5]. Таким образом, отличное от нуля значение χ (3) обычно подтверждает наличие стекло-образного состояния вследствие фрустрации магнитных моментов магнитных доменов (без фазового перехода) или слабого ферромагнетизма в антиферромагнетиках [1,2,5]. Поэтому для поиска возможного спин-стекольного состояния мы использовали действительную и мнимую части третьей гармоники χ…”

Section: методика экспериментов и образцыunclassified

“…Множество сравнительно недавних работ было посвящено нелинейной магнитной восприимчивости в ферромагнетиках, где низкочастотная динамика доменных стенок приводит к резонансному отклику на внешнее переменное магнитное поле и дает возможность получать данные о подвижности доменных границ [1][2][3][4][5]. Наличие второй, третьей и гармоник более высокого порядка при исследовании ферромагнетиков не кажется необычным потому, что сами доменные стенки являются солитонами, а их динамика всегда существенно нелинейна.…”

Section: Introductionunclassified

See 2 more Smart Citations

Нелинейность и гармоники магнитной восприимчивости моно-ионного магнита Co-=SUP=-2+-=/SUP=- в парамагнитной области выше температуры магнитного упорядочения

Коплак¹,

Дворецкая²,

Куницына³

et al. 2023

Физика Твердого Тела

View full text Add to dashboard Cite

In monoionic complexes based on Co2+ ions, the second and third harmonics of the magnetic susceptibility were found at temperatures of 2–4 K, which exceed the Néel temperature. The maxima of the second and third harmonics of the magnetic susceptibility are observed at a frequency of ~1 Hz, at which the maximum of the first harmonic is observed in a field of 3.2 kOe. An analysis of the dependences of the second and third harmonics of the magnetic susceptibility on the field and temperature showed that the nonlinearity arises as a result of the formation of a spin glass state at temperatures slightly higher than the Néel temperature. In this state, there is no long-range spin order, but there are spin clusters in the spin glass state. The spin-glass state in a compound with a Co2+ ion with a high magnetic anisotropy is unusual in that the exchange interaction is much smaller than the single-ion anisotropy energy.

show abstract

Section: методика экспериментов и образцыunclassified

Section: Introductionunclassified

See 1 more Smart Citation

Нелинейность и гармоники магнитной восприимчивости моно-ионного магнита Co-=SUP=-2+-=/SUP=- в парамагнитной области выше температуры магнитного упорядочения

Коплак¹,

Дворецкая²,

Куницына³

et al. 2023

Физика Твердого Тела

View full text Add to dashboard Cite

show abstract

“…Second harmonic χ (2) is usually used to analyze materials that have spontaneous magnetization [1,2]. Finally the third harmonic χ (3) is a relatively exotic characteristic, different from zero in relatively rare cases. One example of such situations is spin glasses, where there is a locally cooperative, but at the same time disordered on average, direction of spins [5].…”

Section: Experimental Procedures and Samplesmentioning

confidence: 99%

“…A lot of relatively recent work has been devoted to nonlinear magnetic susceptibility in ferromagnets, where the low-frequency dynamics of domain walls leads to a resonant response to an external alternating magnetic field and makes it possible to obtain data on the mobility of domain boundaries [1][2][3][4][5]. The presence of second, third and higher-order harmonics in the study of ferromagnets does not seem unusual because the domain walls themselves are solitons, and their dynamics are always significantly nonlinear.…”

Section: Introductionmentioning

confidence: 99%

Nonlinearity and harmonics of the magnetic susceptibility of a Co-=SUP=-2+-=/SUP=- single-ion magnet in the paramagnetic region above the magnetic ordering temperature

Коплак

Dvoretskaya

Kunitsyna

et al. 2023

Physics of the Solid State

View full text Add to dashboard Cite

In single-ion complexes based on Co2+ ions, the second and third harmonics of the magnetic susceptibility were found at temperatures of 2-4 K, which exceed the Neel temperature. The maxima of the second and third harmonics of the magnetic susceptibility are observed at a frequency of ~1 Hz, at which the maximum of the first harmonic is observed in a field of 3.2 kOe. An analysis of the dependences of the second and third harmonics of the magnetic susceptibility on the field and temperature showed that the nonlinearity arises as a result of the formation of a spin glass state at temperatures slightly higher than the Neel temperature. In this state, there is no long-range spin order, but there are spin clusters in the spin glass state. The spin-glass state in a compound with a Co2+ ion with a high magnetic anisotropy is unusual in that the exchange interaction is much smaller than the single-ion anisotropy energy. Keywords: molecular magnets, nonlinear magnetic susceptibility, nanostructures, spin dynamics, spin glass.

show abstract

Magnetic diagnostics using the third-harmonic magnetic response for a molecule-based magnet networked by a single chiral ligand

Mito

Iriguchi

Deguchi

et al. 2012

Journal of Applied Physics

Self Cite

View full text Add to dashboard Cite

We investigated complex magnetic domain formation on a chiral molecule-based magnet, [Cr(CN)6][Mn(R)-pnH(H2O)](H2O) (termed as R-GN), whose two-dimensional molecular network was constructed with the help of a single-handed chiral ligand ((R)-pn). There, the first- and third-harmonic magnetic responses (M1ω and M3ω) against the ac magnetic field were observed, and magnetic hysteresis in ac field of a few Oe was discussed in terms of Rayleigh loop. The diagnostics of this magnetic hysteresis clarified the complex process of magnetic domain formation against a change in temperature. For R-GN, it was reported that a giant M3ω (termed #4 in this paper) appeared just above the so-called “magnetic ordering temperature (TC).” In the present study, three M3ω responses (#1-3) were newly observed on the lower-temperature side of #4, and the ac field dependencies for all of #1-#4 were investigated. #1 also accompanied the giant M3ω, which suggests that a significant degree of magnetic fluctuation surviving below TC. This glassy behavior below TC is an attractive new phenomenon in molecule-based magnets with a single-handed chiral ligand. #2 and #3 exhibited magnetic ordering and the formation of a small magnetic domain, respectively. The M3ω responses of #1-3 were suppressed with increasing the amplitude of ac field, and the corresponding magnetic hysteresis was a normal Rayleigh loop accompanying the out-of-phase of the M1ω response. The M3ω response of #4 without the out-of-phase of M1ω was, however, enhanced with increasing the amplitude of ac field, and #4 represented a large magnetic hysteresis in the paramagnetic region, intrinsically different from those of #1-#3.

show abstract

Effect of uniaxial strain on a molecule-based ferrimagnet with crystal chirality

Cited by 3 publications

References 11 publications

Нелинейность и гармоники магнитной восприимчивости моно-ионного магнита Co-=SUP=-2+-=/SUP=- в парамагнитной области выше температуры магнитного упорядочения

Нелинейность и гармоники магнитной восприимчивости моно-ионного магнита Co-=SUP=-2+-=/SUP=- в парамагнитной области выше температуры магнитного упорядочения

Nonlinearity and harmonics of the magnetic susceptibility of a Co-=SUP=-2+-=/SUP=- single-ion magnet in the paramagnetic region above the magnetic ordering temperature

Magnetic diagnostics using the third-harmonic magnetic response for a molecule-based magnet networked by a single chiral ligand

Contact Info

Product

Resources

About