| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Tuning the Heavy Fermion State of CeFeGe$_{3}$ by Ru Doping |
| Xin-Bei Xia1, Bin Shen1, Michael Smidman1, Ye Chen1, Hanoh Lee1,2, Hui-Qiu Yuan1,3** |
1Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310058
2Department of Physics, Sungkyunkwan University, Suwon 440-746, South Korea
3Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093
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| Cite this article: |
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Xin-Bei Xia, Bin Shen, Michael Smidman et al 2018 Chin. Phys. Lett. 35 067102 |
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Abstract We successfully synthesize a series of polycrystalline CeRu$_{x}$Fe$_{1-x}$Ge$_{3}$ ($0\leq x\leq 0.5$) samples, which are characterized using powder x-ray diffraction, resistivity and specific heat measurements. The expansion of the lattice constants with increasing $x$ demonstrates the successful doping of Ru into the CeFeGe$_{3}$ lattice. Upon doping, it is found that the temperature up to which Landau–Fermi liquid behavior is observed in the resistivity is reduced. Meanwhile, there is also a pronounced increase in the resistivity coefficient and residual resistivity, as well as a clear upturn in $C/T$ at low temperatures, suggesting that Ru doping may tune the system towards a quantum critical point.
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Received: 26 March 2018
Published: 19 May 2018
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| PACS: |
71.27.+a
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(Strongly correlated electron systems; heavy fermions)
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72.15.Qm
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(Scattering mechanisms and Kondo effect)
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75.40.-s
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(Critical-point effects, specific heats, short-range order)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11474251, 11604291 and U1632275, the National Key Research and Development Program of China under Grant Nos 2017YFA0303100 and 2016YFA0300202, and the Science Challenge Project of China under Grant No TZ2016004. |
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| [1] | Hewson A C 1939 The Kondo Problem to Heavy Fermions (Cambridge: Cambridge University) | | [2] | Doniach S 1977 Physica B+C 91 231 | | [3] | von Löhneysen H, Pietrus T, Portish G, Schlager H, Schröder A, Sieck M and Trappmann T 1994 Phys. Rev. Lett. 72 3262 | | [4] | Trovarelli O, Geibel C, Mederle S, Langhammer C, Grosche F M, Gegenwart P, Lang M, Sparn G and Steglich F 2000 Phys. Rev. Lett. 85 626 | | [5] | Mathur N D, Grosche F M, Julian S R, Walker I R, Freye D M, Haselwimmer R K W and Lonzarich G G 1998 Nature 394 39 | | [6] | Hegger H, Petrovic C, Moshopoulou E G, Hundley M F, Sarrao J L, Fisk Z and Thompson J D 2000 Phys. Rev. Lett. 84 4986 | | [7] | Nakatsuji S, Kuga K, Machida Y, Tayama T, Sakakibara T, Karaki Y, Ishimoto H, Yonezawa S, Maeno Y, Pearson E, Lonzarich G G, Balicas L, Lee H and Fisk Z 2008 Nat. Phys. 4 603 | | [8] | Weng Z F, Smidman M, Jiao L, Lu X and Yuan H Q 2016 Rep. Prog. Phys. 79 094503 | | [9] | Muro Y, Eom D, Takeda N and Ishikawa M 1998 J. Phys. Soc. Jpn. 67 3601 | | [10] | Pecharsky V K, Hyun O B and Gschneidner K A 1993 Phys. Rev. B 47 11839 | | [11] | Paschen S, Felder E and Ott H R 1998 Eur. Phys. J. B 2 169 | | [12] | Bauer E, Pillmayr N, Gratz E, Hilscher G, Gignoux D and Schmitt D 1987 Z. Phys. B 67 205 | | [13] | Liu Q, Shen B, Smidman M, Li R, Nie Z Y, Xiao X Y, Lee H and Yuan H Q 2018 Sci. Chin.-Phys. Mech. Astron. 61 077411 | | [14] | Kimura N, Ito K, Saitoh K, Umeda Y, Aoki H and Terashima T 2005 Phys. Rev. Lett. 95 247004 | | [15] | Sugitani I, Okuda Y, Shishido H, Yamada T, Thamizhavel A, Yamamoto E, Matsuda T D, Haga Y, Takeuchi T, Settai R and Ōnuki Y 2006 J. Phys. Soc. Jpn. 75 043703 | | [16] | Kawai T, Muranaka H, Measson M A, Shimodai T, Doi Y, Matsuda T D, Haga Y, Knebel G, Lapertot G, Aoki D, Flouquet J, Takeuchi T, Settai R and Ōnuki Y 2008 J. Phys. Soc. Jpn. 77 064716 | | [17] | Smidman M, Adroja D T, Goremychkin E A, Paul D M and Balakrishnan G 2015 Phys. Rev. B 91 064419 | | [18] | Yamamoto H, Ishikawa M, Hasegawa K and Sakurai J 1995 Phys. Rev. B 52 10136 | | [19] | de Medeiros S N, Bud'ko S L, Fontes M B, Continentino M A and Baggio-Saitovitch E M 2001 J. Magn. Magn. Mater. 226 152 | | [20] | Alamakha P S, Konyk M B and Sologub O L 1996 J. Alloys Compd. 234 151 | | [21] | Tsujii N, Kontani H and Yoshimura K 2005 Phys. Rev. Lett. 94 057201 | | [22] | Kimura N, Muro Y and Aoki H 2007 J. Phys. Soc. Jpn. 76 051010 | | [23] | Custers J, Gegenwart P, Wilhelm H, Neumaier K, Tokiwa Y, Trovarelli O, Geibel C, Steglich F, Pépin C and Coleman P 2003 Nature 424 524 | | [24] | Kambe S, Flouquet J, Haen P and Lejay P 1996 J. Low Temp. Phys. 102 477 |
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