Phase Diagram and Soliton Picture of an Ideal Spin-Peierls Compound D-F5PNN

Yuji Inagaki; Tatsuya Kawae; Naoko Sakai; Naoyuki Kawame; Takao Goto; Kunio Taguma; Jun Yamauchi; Yasuo Yoshida; Yutaka Fujii; Takashi Kambe; Yuko Hosokoshi; Béatrice Grenier; Jean Paul Boucher

Phase Diagram and Soliton Picture of an Ideal Spin-Peierls Compound D-F₅PNN

Yuji Inagaki, Tatsuya Kawae, Naoko Sakai, Naoyuki Kawame, Takao Goto, Kunio Taguma, Jun Yamauchi, Yasuo Yoshida, Yutaka Fujii, Takashi Kambe, Yuko Hosokoshi, Béatrice Grenier, Jean Paul Boucher

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate magnetic properties of an S=1/2, quasi-one dimensional organic antiferromagnet, D-F5PNN using magnetization measurements taken at temperatures as low as 0.5 K. Three distinct phases were observed consisting of uniform, dimerized (D), and incommensurate (I) spin structures in the magnetic field versus temperature plane, where a significant hysteresis appears between D-I transitions in the field scan measurements. A combination of magnon (S=1) and soliton (S=1/2) excitations have successfully reproduced the observed magnetic susceptibility. In addition, such excitations provide a reasonable interpretation of the temperature dependent electron spin resonance (ESR) spectra. By comparison with the theoretical study, we conclude that D-F5PNN is an ideal compound for investigatingthe spin-Peierls transition.

Original language	English
Journal	Unknown Journal
Publication status	Published - Jun 21 2017

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Phase Diagram and Soliton Picture of an Ideal Spin-Peierls Compound D-F₅PNN. / Inagaki, Yuji; Kawae, Tatsuya; Sakai, Naoko; Kawame, Naoyuki; Goto, Takao; Taguma, Kunio; Yamauchi, Jun; Yoshida, Yasuo; Fujii, Yutaka; Kambe, Takashi; Hosokoshi, Yuko; Grenier, Béatrice; Boucher, Jean Paul.

In: Unknown Journal, 21.06.2017.

Research output: Contribution to journal › Article › peer-review

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title = "Phase Diagram and Soliton Picture of an Ideal Spin-Peierls Compound D-F5PNN",

abstract = "We investigate magnetic properties of an S=1/2, quasi-one dimensional organic antiferromagnet, D-F5PNN using magnetization measurements taken at temperatures as low as 0.5 K. Three distinct phases were observed consisting of uniform, dimerized (D), and incommensurate (I) spin structures in the magnetic field versus temperature plane, where a significant hysteresis appears between D-I transitions in the field scan measurements. A combination of magnon (S=1) and soliton (S=1/2) excitations have successfully reproduced the observed magnetic susceptibility. In addition, such excitations provide a reasonable interpretation of the temperature dependent electron spin resonance (ESR) spectra. By comparison with the theoretical study, we conclude that D-F5PNN is an ideal compound for investigatingthe spin-Peierls transition.",

author = "Yuji Inagaki and Tatsuya Kawae and Naoko Sakai and Naoyuki Kawame and Takao Goto and Kunio Taguma and Jun Yamauchi and Yasuo Yoshida and Yutaka Fujii and Takashi Kambe and Yuko Hosokoshi and B{\'e}atrice Grenier and Boucher, {Jean Paul}",

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T1 - Phase Diagram and Soliton Picture of an Ideal Spin-Peierls Compound D-F5PNN

AU - Inagaki, Yuji

AU - Kawae, Tatsuya

AU - Sakai, Naoko

AU - Kawame, Naoyuki

AU - Goto, Takao

AU - Taguma, Kunio

AU - Yamauchi, Jun

AU - Yoshida, Yasuo

AU - Fujii, Yutaka

AU - Kambe, Takashi

AU - Hosokoshi, Yuko

AU - Grenier, Béatrice

AU - Boucher, Jean Paul

PY - 2017/6/21

Y1 - 2017/6/21

N2 - We investigate magnetic properties of an S=1/2, quasi-one dimensional organic antiferromagnet, D-F5PNN using magnetization measurements taken at temperatures as low as 0.5 K. Three distinct phases were observed consisting of uniform, dimerized (D), and incommensurate (I) spin structures in the magnetic field versus temperature plane, where a significant hysteresis appears between D-I transitions in the field scan measurements. A combination of magnon (S=1) and soliton (S=1/2) excitations have successfully reproduced the observed magnetic susceptibility. In addition, such excitations provide a reasonable interpretation of the temperature dependent electron spin resonance (ESR) spectra. By comparison with the theoretical study, we conclude that D-F5PNN is an ideal compound for investigatingthe spin-Peierls transition.

AB - We investigate magnetic properties of an S=1/2, quasi-one dimensional organic antiferromagnet, D-F5PNN using magnetization measurements taken at temperatures as low as 0.5 K. Three distinct phases were observed consisting of uniform, dimerized (D), and incommensurate (I) spin structures in the magnetic field versus temperature plane, where a significant hysteresis appears between D-I transitions in the field scan measurements. A combination of magnon (S=1) and soliton (S=1/2) excitations have successfully reproduced the observed magnetic susceptibility. In addition, such excitations provide a reasonable interpretation of the temperature dependent electron spin resonance (ESR) spectra. By comparison with the theoretical study, we conclude that D-F5PNN is an ideal compound for investigatingthe spin-Peierls transition.

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