Effect of hydrostatic pressure on the low-temperature phase transitions in Rb_2ZnBr_4
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概要
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The effect of hydrostatic pressure on the low-temperature structural phase transitions in Rb_2ZnBr_4 has been investigated by the use of neutron scattering technique. The phase III-to-IV transition temperature, T_3=112 K at atmospheric pressure, increased by applying pressure with a rate of 7 K/kbar. The phase IV-to-V transition temperature, T_4=76 K at atmospheric pressure, decreased by applying pressure with a rate of -45 K/kbar. At high pressure, two high-order pseudo-commensurate phases characterized by wave vectors q_z ≒ (3)/(11) and (4)/(15) were observed in addition to the already known commensurate ones of q_z=(2)/(7) and (1)/(4). The space group of the commensurate phase of q_z=(1)/(4) under high pressure was suggested to be P2_1/c11 from the extinction rule.
- 社団法人日本物理学会の論文
- 1999-08-15
著者
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Nishi Masakazu
Neutron Scattering Laboratory Issp University Of Tokyo
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Nishi Masakazu
Neutron Scattering Laboratory I.s.s.p. University Of Tokyo
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Nishi Masakazu
Neutron Scattering Laboratory I. S. S. P. University Of Tokyo
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Kubota Masato
Neutron Scattering Laboratory I.s.s.p. University Of Tokyo
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MATSUI Tsuneo
Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya Univ
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SHIGEMATSU Hirotake
Department of Quantum Engineering,Graduate School of Engineering,Nagoya University
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MASHIYAMA Hiroyuki
Department of Physics,Faculty of Science,Yamaguchi University
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Mashiyama Hiroyuki
Department Of Physics Biology And Informatics Faculty Of Science Yamaguchi University
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Mashiyama Hiroyuki
Department Of Physics Yamaguchi University
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Shigematsu Hirotake
Faculty Of Education Shimane University
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Shigematsu Hirotake
Department Of Quantum Engineering Graduate School Of Engineering Nagoya University
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Matsui T
Kinki Univ. Higashi‐osaka
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Matsui Tsuneo
Department Of Materials Physics And Energy Engineering Graduate School Of Engineering Nagoya Univers
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Mashiyama H
Faculty Of Science Yamaguchi University
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