Abstract
Pressure-induced superconductivity is found in UIr without inversion symmetry. The pressure-temperature phase diagram has been investigated by means of the electrical resistivity and magnetization measurements under high pressure. The phase diagram consists of two magnetic phases, the Ising-like ferromagnetic phase (FM1) at low pressures and another magnetic phase (FM2) with the small ferromagnetic component along the [101] direction at high pressures. Superconductivity is observed in the narrow pressure range near the disappearance point of the FM2 phase, where the temperature dependence of resistivity follows the non-Fermi liquid form of T1.6. From these experimental facts, the superconductivity is considered to be associated with the critical fluctuation with the disappearance of FM2 phase.
| Original language | English |
|---|---|
| Pages (from-to) | 3129-3134 |
| Number of pages | 6 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 73 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 2004 |
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Keywords
- Critical fluctuation
- Ferromagnetism
- Inversion symmetry
- Superconductivity
- UIr
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Pressure-induced superconductivity in UIr. / Akazawa, Teruhiko; Hidaka, Hiroyuki; Kotegawa, Hisashi; Kobayashi, Tatsuo; Fujiwara, Tabito; Yamamoto, Etsuji; Haga, Yoshinori; Settai, Rikio; Onuki, Yoshichika.
In: Journal of the Physical Society of Japan, Vol. 73, No. 11, 11.2004, p. 3129-3134.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pressure-induced superconductivity in UIr
AU - Akazawa, Teruhiko
AU - Hidaka, Hiroyuki
AU - Kotegawa, Hisashi
AU - Kobayashi, Tatsuo
AU - Fujiwara, Tabito
AU - Yamamoto, Etsuji
AU - Haga, Yoshinori
AU - Settai, Rikio
AU - Onuki, Yoshichika
PY - 2004/11
Y1 - 2004/11
N2 - Pressure-induced superconductivity is found in UIr without inversion symmetry. The pressure-temperature phase diagram has been investigated by means of the electrical resistivity and magnetization measurements under high pressure. The phase diagram consists of two magnetic phases, the Ising-like ferromagnetic phase (FM1) at low pressures and another magnetic phase (FM2) with the small ferromagnetic component along the [101] direction at high pressures. Superconductivity is observed in the narrow pressure range near the disappearance point of the FM2 phase, where the temperature dependence of resistivity follows the non-Fermi liquid form of T1.6. From these experimental facts, the superconductivity is considered to be associated with the critical fluctuation with the disappearance of FM2 phase.
AB - Pressure-induced superconductivity is found in UIr without inversion symmetry. The pressure-temperature phase diagram has been investigated by means of the electrical resistivity and magnetization measurements under high pressure. The phase diagram consists of two magnetic phases, the Ising-like ferromagnetic phase (FM1) at low pressures and another magnetic phase (FM2) with the small ferromagnetic component along the [101] direction at high pressures. Superconductivity is observed in the narrow pressure range near the disappearance point of the FM2 phase, where the temperature dependence of resistivity follows the non-Fermi liquid form of T1.6. From these experimental facts, the superconductivity is considered to be associated with the critical fluctuation with the disappearance of FM2 phase.
KW - Critical fluctuation
KW - Ferromagnetism
KW - Inversion symmetry
KW - Superconductivity
KW - UIr
UR - http://www.scopus.com/inward/record.url?scp=20444406077&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=20444406077&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.73.3129
DO - 10.1143/JPSJ.73.3129
M3 - Article
AN - SCOPUS:20444406077
VL - 73
SP - 3129
EP - 3134
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 11
ER -