Desorption-erasure of the spin state transition in prussian-blue type cyanide

Yutaka Moritomo; Fumiya Nakada; Jungeun Kim; Masaki Takata

doi:10.1143/APEX.1.111301

Desorption-erasure of the spin state transition in prussian-blue type cyanide

Yutaka Moritomo, Fumiya Nakada, Jungeun Kim, Masaki Takata

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

5 Citations (Scopus)

Abstract

Desorption/adsorption of guest molecules in a nano-porous material is one of the sensitive tools to control the nature of the host framework via the strong guest-host interaction. A Co-Fe cyanide film, Na_0.20Co[Fe(CN) ₆]_0.71zH₂O, shows a spin state transition from the high-spin (HS) phase [Co²⁺ (S = 3/2)-Fe³⁺ (S = 1 /2)] to the low-spin (LS) phase [Co³⁺ (S = O)-Fe²⁺ (S = 0)] at T_c = 220 K. Here, we found that the existence (T_c = 220-263 K) and nonexistence (T_c ≤ 0 K) of the phase transition reversibly switched by the site-selective desorption of the guest waters. Such a gigantic controllability of T_c is ascribed to subtle competition between the HS phase and the LS phase together with the cooperative nature of the transition.

Original language	English
Pages (from-to)	1113011-1113013
Number of pages	3
Journal	Applied Physics Express
Volume	1
Issue number	11
DOIs	https://doi.org/10.1143/APEX.1.111301
Publication status	Published - 2008 Nov 1
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Desorption-erasure of the spin state transition in prussian-blue type cyanide",

abstract = "Desorption/adsorption of guest molecules in a nano-porous material is one of the sensitive tools to control the nature of the host framework via the strong guest-host interaction. A Co-Fe cyanide film, Na0.20Co[Fe(CN) 6]0.71zH2O, shows a spin state transition from the high-spin (HS) phase [Co2+ (S = 3/2)-Fe3+ (S = 1 /2)] to the low-spin (LS) phase [Co3+ (S = O)-Fe2+ (S = 0)] at Tc = 220 K. Here, we found that the existence (Tc = 220-263 K) and nonexistence (Tc ≤ 0 K) of the phase transition reversibly switched by the site-selective desorption of the guest waters. Such a gigantic controllability of Tc is ascribed to subtle competition between the HS phase and the LS phase together with the cooperative nature of the transition.",

author = "Yutaka Moritomo and Fumiya Nakada and Jungeun Kim and Masaki Takata",

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AU - Moritomo, Yutaka

AU - Nakada, Fumiya

AU - Kim, Jungeun

AU - Takata, Masaki

PY - 2008/11/1

Y1 - 2008/11/1

N2 - Desorption/adsorption of guest molecules in a nano-porous material is one of the sensitive tools to control the nature of the host framework via the strong guest-host interaction. A Co-Fe cyanide film, Na0.20Co[Fe(CN) 6]0.71zH2O, shows a spin state transition from the high-spin (HS) phase [Co2+ (S = 3/2)-Fe3+ (S = 1 /2)] to the low-spin (LS) phase [Co3+ (S = O)-Fe2+ (S = 0)] at Tc = 220 K. Here, we found that the existence (Tc = 220-263 K) and nonexistence (Tc ≤ 0 K) of the phase transition reversibly switched by the site-selective desorption of the guest waters. Such a gigantic controllability of Tc is ascribed to subtle competition between the HS phase and the LS phase together with the cooperative nature of the transition.

AB - Desorption/adsorption of guest molecules in a nano-porous material is one of the sensitive tools to control the nature of the host framework via the strong guest-host interaction. A Co-Fe cyanide film, Na0.20Co[Fe(CN) 6]0.71zH2O, shows a spin state transition from the high-spin (HS) phase [Co2+ (S = 3/2)-Fe3+ (S = 1 /2)] to the low-spin (LS) phase [Co3+ (S = O)-Fe2+ (S = 0)] at Tc = 220 K. Here, we found that the existence (Tc = 220-263 K) and nonexistence (Tc ≤ 0 K) of the phase transition reversibly switched by the site-selective desorption of the guest waters. Such a gigantic controllability of Tc is ascribed to subtle competition between the HS phase and the LS phase together with the cooperative nature of the transition.

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Desorption-erasure of the spin state transition in prussian-blue type cyanide

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