Abstract
Specific heat measurements in a magnetic field up to 8 T have been performed on an S = 1/2 weakly coupled alternating ferromagnetic (F) and antiferromagnetic (AF) dimer chain system, (CH3)2NH 2-CuCl3. We have observed a spontaneous AF ordering and a field-induced one below and above the 1/2 magnetization plateau field range from 2 to 3.5 T, respectively. The H-T phase boundaries for the orderings are completely different from the general reentrant ones of the other quantum spin systems investigated thus far. In the plateau field range, a double-peaked structure is observed in the temperature dependence of specific heat, reflecting the coexistence of F and AF excitations.
| Original language | English |
|---|---|
| Pages (from-to) | 2917-2920 |
| Number of pages | 4 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 74 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 1 2005 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Specific heat study of novel spin-gapped system : (CH3) 2NH2CuCl3. / Yoshida, Yasuo; Wada, Osamu; Inagaki, Yuji; Asano, Takayuki; Takeo, Kenji; Kawae, Tatsuya; Takeda, Kazuyoshi; Ajiro, Yoshitami.
In: Journal of the Physical Society of Japan, Vol. 74, No. 11, 01.11.2005, p. 2917-2920.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Specific heat study of novel spin-gapped system
T2 - (CH3) 2NH2CuCl3
AU - Yoshida, Yasuo
AU - Wada, Osamu
AU - Inagaki, Yuji
AU - Asano, Takayuki
AU - Takeo, Kenji
AU - Kawae, Tatsuya
AU - Takeda, Kazuyoshi
AU - Ajiro, Yoshitami
PY - 2005/11/1
Y1 - 2005/11/1
N2 - Specific heat measurements in a magnetic field up to 8 T have been performed on an S = 1/2 weakly coupled alternating ferromagnetic (F) and antiferromagnetic (AF) dimer chain system, (CH3)2NH 2-CuCl3. We have observed a spontaneous AF ordering and a field-induced one below and above the 1/2 magnetization plateau field range from 2 to 3.5 T, respectively. The H-T phase boundaries for the orderings are completely different from the general reentrant ones of the other quantum spin systems investigated thus far. In the plateau field range, a double-peaked structure is observed in the temperature dependence of specific heat, reflecting the coexistence of F and AF excitations.
AB - Specific heat measurements in a magnetic field up to 8 T have been performed on an S = 1/2 weakly coupled alternating ferromagnetic (F) and antiferromagnetic (AF) dimer chain system, (CH3)2NH 2-CuCl3. We have observed a spontaneous AF ordering and a field-induced one below and above the 1/2 magnetization plateau field range from 2 to 3.5 T, respectively. The H-T phase boundaries for the orderings are completely different from the general reentrant ones of the other quantum spin systems investigated thus far. In the plateau field range, a double-peaked structure is observed in the temperature dependence of specific heat, reflecting the coexistence of F and AF excitations.
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U2 - 10.1143/JPSJ.74.2917
DO - 10.1143/JPSJ.74.2917
M3 - Article
VL - 74
SP - 2917
EP - 2920
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 11
ER -