Pressure-induced anomalous valence crossover in cubic YbCu5-based compounds
Abstract A pressure-induced anomalous valence crossover without structural phase transition is observed in archetypal cubic YbCu5 based heavy Fermion systems. The Yb valence is found to decrease with increasing pressure, indicating a pressure-induced crossover from a localized 4f 13 state to the val...
Guardado en:
| Autores principales: | , , , , , , , , , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2017
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/4f9991079f5a4908b5417aa0909b7877 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:4f9991079f5a4908b5417aa0909b7877 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:4f9991079f5a4908b5417aa0909b78772021-12-02T11:52:27ZPressure-induced anomalous valence crossover in cubic YbCu5-based compounds10.1038/s41598-017-06190-32045-2322https://doaj.org/article/4f9991079f5a4908b5417aa0909b78772017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06190-3https://doaj.org/toc/2045-2322Abstract A pressure-induced anomalous valence crossover without structural phase transition is observed in archetypal cubic YbCu5 based heavy Fermion systems. The Yb valence is found to decrease with increasing pressure, indicating a pressure-induced crossover from a localized 4f 13 state to the valence fluctuation regime, which is not expected for Yb systems with conventional c–f hybridization. This result further highlights the remarkable singularity of the valence behavior in compressed YbCu5-based compounds. The intermetallics Yb2Pd2Sn, which shows two quantum critical points (QCP) under pressure and has been proposed as a potential candidate for a reentrant Yb2+ state at high pressure, was also studied for comparison. In this compound, the Yb valence monotonically increases with pressure, disproving a scenario of a reentrant non-magnetic Yb2+ state at the second QCP.Hitoshi YamaokaNaohito TsujiiMichi-To SuzukiYoshiya YamamotoIgnace JarrigeHitoshi SatoJung-Fu LinTakeshi MitoJun’ichiro MizukiHiroya SakuraiOsamu SakaiNozomu HiraokaHirofumi IshiiKu-Ding TsueiMauro GiovanniniErnst BauerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Medicine R Science Q |
| spellingShingle |
Medicine R Science Q Hitoshi Yamaoka Naohito Tsujii Michi-To Suzuki Yoshiya Yamamoto Ignace Jarrige Hitoshi Sato Jung-Fu Lin Takeshi Mito Jun’ichiro Mizuki Hiroya Sakurai Osamu Sakai Nozomu Hiraoka Hirofumi Ishii Ku-Ding Tsuei Mauro Giovannini Ernst Bauer Pressure-induced anomalous valence crossover in cubic YbCu5-based compounds |
| description |
Abstract A pressure-induced anomalous valence crossover without structural phase transition is observed in archetypal cubic YbCu5 based heavy Fermion systems. The Yb valence is found to decrease with increasing pressure, indicating a pressure-induced crossover from a localized 4f 13 state to the valence fluctuation regime, which is not expected for Yb systems with conventional c–f hybridization. This result further highlights the remarkable singularity of the valence behavior in compressed YbCu5-based compounds. The intermetallics Yb2Pd2Sn, which shows two quantum critical points (QCP) under pressure and has been proposed as a potential candidate for a reentrant Yb2+ state at high pressure, was also studied for comparison. In this compound, the Yb valence monotonically increases with pressure, disproving a scenario of a reentrant non-magnetic Yb2+ state at the second QCP. |
| format |
article |
| author |
Hitoshi Yamaoka Naohito Tsujii Michi-To Suzuki Yoshiya Yamamoto Ignace Jarrige Hitoshi Sato Jung-Fu Lin Takeshi Mito Jun’ichiro Mizuki Hiroya Sakurai Osamu Sakai Nozomu Hiraoka Hirofumi Ishii Ku-Ding Tsuei Mauro Giovannini Ernst Bauer |
| author_facet |
Hitoshi Yamaoka Naohito Tsujii Michi-To Suzuki Yoshiya Yamamoto Ignace Jarrige Hitoshi Sato Jung-Fu Lin Takeshi Mito Jun’ichiro Mizuki Hiroya Sakurai Osamu Sakai Nozomu Hiraoka Hirofumi Ishii Ku-Ding Tsuei Mauro Giovannini Ernst Bauer |
| author_sort |
Hitoshi Yamaoka |
| title |
Pressure-induced anomalous valence crossover in cubic YbCu5-based compounds |
| title_short |
Pressure-induced anomalous valence crossover in cubic YbCu5-based compounds |
| title_full |
Pressure-induced anomalous valence crossover in cubic YbCu5-based compounds |
| title_fullStr |
Pressure-induced anomalous valence crossover in cubic YbCu5-based compounds |
| title_full_unstemmed |
Pressure-induced anomalous valence crossover in cubic YbCu5-based compounds |
| title_sort |
pressure-induced anomalous valence crossover in cubic ybcu5-based compounds |
| publisher |
Nature Portfolio |
| publishDate |
2017 |
| url |
https://doaj.org/article/4f9991079f5a4908b5417aa0909b7877 |
| work_keys_str_mv |
AT hitoshiyamaoka pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT naohitotsujii pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT michitosuzuki pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT yoshiyayamamoto pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT ignacejarrige pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT hitoshisato pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT jungfulin pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT takeshimito pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT junichiromizuki pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT hiroyasakurai pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT osamusakai pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT nozomuhiraoka pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT hirofumiishii pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT kudingtsuei pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT maurogiovannini pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds AT ernstbauer pressureinducedanomalousvalencecrossoverincubicybcu5basedcompounds |
| _version_ |
1718395046594609152 |