TY - JOUR
T1 - Pressure-temperature phase diagram for charge-transfer transition in Cs [Co (3-CNpy)2] [W (CN)8] H2 O
AU - Kim, J. E.
AU - Ohishi, Y.
AU - Moritomo, Y.
AU - Kato, K.
AU - Takata, M.
AU - Ohkoshi, S.
PY - 2008/1/22
Y1 - 2008/1/22
N2 - Effects of the hydrostatic pressure on the magnetic and structural properties are investigated in a charge-transfer material, Cs [Co (3-CNpy)2] [W (CN)8] H2 O (CNpy=cyanopyridine), with two-dimensional Co-W network bridged by CN anions. We have found that the compound shows a pressure-induced charge-transfer (CT) transition at 0.5 GPa at room temperature, accompanied by a remarkable color change from transparent red to green. The upper critical temperature (TCT,up) for the CT transition increases at a huge rate of 250 KGPa under pressures, reflecting the concomitant significant volume change (ΔVV=0.08).
AB - Effects of the hydrostatic pressure on the magnetic and structural properties are investigated in a charge-transfer material, Cs [Co (3-CNpy)2] [W (CN)8] H2 O (CNpy=cyanopyridine), with two-dimensional Co-W network bridged by CN anions. We have found that the compound shows a pressure-induced charge-transfer (CT) transition at 0.5 GPa at room temperature, accompanied by a remarkable color change from transparent red to green. The upper critical temperature (TCT,up) for the CT transition increases at a huge rate of 250 KGPa under pressures, reflecting the concomitant significant volume change (ΔVV=0.08).
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U2 - 10.1103/PhysRevB.77.012101
DO - 10.1103/PhysRevB.77.012101
M3 - Article
AN - SCOPUS:38549100104
SN - 1098-0121
VL - 77
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 1
M1 - 012101
ER -