Electronic structure of ferromagnetic heavy fermion, YbPdSi, YbPdGe, and YbPtGe studied by photoelectron spectroscopy, x-ray emission spectroscopy, and DFT plus DMFT calculations

Yamaoka Hitoshi; Thunstrom Patrik; Tsujii Naohito; Katoh Kenichi; Yamamoto Yoshiya; Schwier Eike F.; Shimada Kenya; Iwasawa Hideaki; Arita Masashi; Jarrige Ignace; Hiraoka Nozomu; Ishii Hirofumi; Tsuei Ku-Ding; Mizuki Junichiro

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Electronic structure of ferromagnetic heavy fermion, YbPdSi, YbPdGe, and YbPtGe studied by photoelectron spectroscopy, x-ray emission spectroscopy, and DFT plus DMFT calculations

机译：由光电子光谱，X射线发射光谱和DFT加上DMFT计算的铁磁重型铁缆，YBPDSI，YBPDGE和Ybptge的电子结构

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Electronic structures of ferromagnetic heavy fermion Yb compounds of YbPdSi, YbPdGe, and YbPtGe are studied by photoelectron spectroscopy around the Yb 4d-4f resonance, resonant x-ray emission spectroscopy at the Yb L-3 absorption edge, and density functional theory combined with dynamical mean field theory calculations. These compounds all have a temperature-independent intermediate Yb valence with large Yb3+ and small Yb2+ components. The magnitude of the Yb valence is evaluated to be YbPtGe YbPdGe less than or similar to YbPdSi, suggesting that YbPtGe is the closest to the quantum critical point among the three Yb compounds. Our results support the scenario of the coexistence of heavy fermion behavior and ferromagnetic ordering which is described by a magnetically-ordered Kondo lattice where the magnitude of the Kondo effect and the RKKY interaction are comparable.

机译：通过围绕YB 4D-4F共振的光电子光谱研究YBPDSI，YBPDGE和Ybptge的铁磁性重度yb化合物的电子结构，在Yb L-3吸收边缘处的共振X射线发射光谱，密度函数理论与动态相结合平均场理论计算。这些化合物均具有与大YB3 +和小YB2 +组分的温度无关的中间Yb效果。评估Yb价值的幅度为Ybptge＆ YBPDGE少于或类似于YBPDSI，表明Ybptge是三个YB化合物中最接近量子临界点的最接近量子临界点。我们的研究结果支持重度偏差行为和铁磁排序的共存情景，其由磁性有序的Kondo格子描述，其中kondo效应的大小和rkky相互作用是可比的。

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来源
《Journal of Physics. Condensed Matter》 |2017年第47期|共9页
作者
Yamaoka Hitoshi; Thunstrom Patrik; Tsujii Naohito; Katoh Kenichi; Yamamoto Yoshiya; Schwier Eike F.; Shimada Kenya; Iwasawa Hideaki; Arita Masashi; Jarrige Ignace; Hiraoka Nozomu; Ishii Hirofumi; Tsuei Ku-Ding; Mizuki Junichiro;
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作者单位

RIKEN SPring 8 Ctr Sayo Hyogo 6795148 Japan;

Uppsala Univ Dept Phys &

Astron Mat Theory Box 530 SE-75121 Uppsala Sweden;

Natl Inst Mat Sci Int Ctr Mat Nanoarchitecton MANA 1-2-1 Sengen Tsukuba Ibaraki 3050047 Japan;

Natl Def Acad Japan Dept Appl Phys 1-10-20 Yokosuka Yokosuka Kanagawa 2398686 Japan;

Kwansei Gakuin Univ Grad Sch Sci &

Technol Sanda Hyogo 6691337 Japan;

Hiroshima Univ Hiroshima Synchrotron Radiat Ctr Higashihiroshima Hiroshima 7390046 Japan;

Hiroshima Univ Hiroshima Synchrotron Radiat Ctr Higashihiroshima Hiroshima 7390046 Japan;

Hiroshima Univ Hiroshima Synchrotron Radiat Ctr Higashihiroshima Hiroshima 7390046 Japan;

Hiroshima Univ Hiroshima Synchrotron Radiat Ctr Higashihiroshima Hiroshima 7390046 Japan;

Brookhaven Natl Lab Photon Sci Directorate Upton NY 11973 USA;

Natl Synchrotron Radiat Res Ctr Hsinchu 30076 Taiwan;

Natl Synchrotron Radiat Res Ctr Hsinchu 30076 Taiwan;

Natl Synchrotron Radiat Res Ctr Hsinchu 30076 Taiwan;

Kwansei Gakuin Univ Grad Sch Sci &

Technol Sanda Hyogo 6691337 Japan;

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正文语种 eng
中图分类物质分子运动论;
关键词
ferromagnetic heavy fermion; photoelectron spectroscopy; x-ray emission spectroscopy;

机译：铁磁性重型光纤;光电子光谱;X射线发射光谱;

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专利

1. Electronic structure of ferromagnetic heavy fermion, YbPdSi, YbPdGe, and YbPtGe studied by photoelectron spectroscopy, x-ray emission spectroscopy, and DFT plus DMFT calculations [J] . Yamaoka Hitoshi, Thunstrom Patrik, Tsujii Naohito, Journal of Physics. Condensed Matter . 2017,第47期

机译：由光电子光谱，X射线发射光谱和DFT加上DMFT计算的铁磁重型铁缆，YBPDSI，YBPDGE和Ybptge的电子结构
2. Electronic structure of Li_2RuO_3 studied by LDA and LDA+DMFT calculations and soft x-ray spectroscopy [J] . Z. V. Pchelkina, A. L. Pitman, A. Moewes, Physical review . 2015,第11期

机译：通过LDA和LDA + DMFT计算以及软X射线光谱研究了Li_2RuO_3的电子结构
3. Electronic structure of the heavy-fermion caged compound Ce_3Pd_(20)X_6 (X = Si, Ge) studied by density functional theory and photoelectron spectroscopy [J] . Hitoshi Yamaoka, Eike F. Schwier, Masashi Arita, Physical review . 2015,第11期

机译：密度泛函理论和光电子能谱研究重铁笼化合物Ce_3Pd_（20）X_6（X = Si，Ge）的电子结构
4. Electronic structure of LaSrMnO_4: X-ray photoelectron spectroscopy and x-ray emission spectroscopy studies [C] . K. Kuepper, R Klingeler, P. Reutler Annual Conference on Magnetism and Magnetic Materials . 2005

机译：LASRMNO_4的电子结构：X射线光电子体光谱和X射线发射光谱研究
5. Characterization of the electronic and geometric structures of aluminas using X-ray photoelectron spectroscopy, Auger electron spectroscopy, electron energy loss spectroscopy, and low energy electron diffraction. [D] . Kao, Chi-Chang. 1988

机译：使用X射线光电子能谱，俄歇电子能谱，电子能量损失能谱和低能电子衍射来表征氧化铝的电子和几何结构。
6. Photoelectron Spectroscopy and Electronic Structure Calculations of d1 Vanadocene Compounds with Chelated Dithiolate Ligands [O] . Matthew A. Cranswick, Alice Dawson, J. Jon A. Cooney, -1

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7. Electronic structure of VO2 studied by x-ray photoelectron and x-ray emission spectroscopies [O] . Kurmaev, E. Z., Cherkashenko, V. M., Yarmoshenko, Yu. M., 1998

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Electronic structure of ferromagnetic heavy fermion, YbPdSi, YbPdGe, and YbPtGe studied by photoelectron spectroscopy, x-ray emission spectroscopy, and DFT plus DMFT calculations

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