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Agung Imaduddin
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PENGARUH PEMAKAIAN GAS OKSIGEN PADA TAHAP PEMBUATAN MATERIAL Ba-Ca-Cu-O[Effect of Oxygen Gas Usage at the Preparation Stage of Ba-Ca-Cu-O Material] Agung Imaduddin; Florentinus firdiyono; Pius Sebleku; Anton Suryantoro; Franciska Pramuji Lestari
Metalurgi Vol 28, No 1 (2013): Metalurgi Vol.28 No.1 April 2013
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (567.277 KB) | DOI: 10.14203/metalurgi.v28i1.243

Abstract

METODA FOTO BACK-REFLECTION LAUE UNTUK MENENTUKAN ARAH SUMBU KRISTAL TUNGGAL La2-2xSr1+2xMn2 O7 (x=0,4) Agung Imaduddin
Metalurgi Vol 26, No 3 (2011): Metalurgi Vol. 26 No. 3 Desember 2011
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.453 KB) | DOI: 10.14203/metalurgi.v26i3.16

Abstract

La2-2x Sr 1+2x Mn2 O7   (atau disebut  LSMO 327)  mempunyai sifat  magnetoresistance terbesar dibandingkan grup lainnya, ( seperti LSMO 113 ). Dalam pembuatan kristal tunggal diperlukan metoda yang praktis untuk menentukan arah sumbu kristal tunggalnya. Pada tulisan ini akan dipaparkan metoda penentuan arah sumbu kristal tunggal tersebut dengan memakai foto back-reflection Laue untuk mengetahui arah sumbu a, b dan c terhadap arah penumbuhan kristalnya. Dalam penelitian ini digunakan 2 sampel kristal tunggal LSMO 327 dengan konsentrasi Sr pada x=0,4. Dari metoda back reflection Laue tersebut, diketahui bahwa kristal tunggal LSMO 327 memiliki sudut arah sumbu c dengan sudut 80° terhadap arah pertumbuhan kristalnya. Sedangkan arah sumbu a dan b tidak terlihat sama pada kedua sample. AbstractMn oxide materials have long been known to have a large magnetoresistance properties. LA2-2xSr1+2xMn2O7 (or called LSMO 327) has the largest magnetoresistance properties compared to other groups (such as LSMO 113). The preparation of single crystals required a practical method to determine the direction of the axis of single crystals. In this paper, we reported a method of determining the direction of the axis of single crystals by using back-reflection Laue photographs to determine the direction of the axis a, b and c to the direction of crystal growth. We used two samples of single crystal LSMO 327 x = 0.4. By the back-reflection Laue method, we know that c-axis of LSMO 327 single crystals have an angle of 80° to the direction of crystal growth. While the direction of the a-axis and b-axis does not look the same in both samples.
PERGESERAN SUHU KRITIS SUPERKONDUKTOR Bi-Pb-Sr-Ca-Cu-O PADA MEDAN MAGNET TINGGI[The Shift In Critical Temperature Of Bi – Pb – Sr – Ca – Cu – O Superconductors In High Magnetic Field] Agung Imaduddin; Sigit Dwi Yudanto; Bintoro Siswayanti; Hendrik Hendrik
Metalurgi Vol 29, No 3 (2014): Metalurgi Vol.29 NO.3 Desember 2014
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (302.529 KB) | DOI: 10.14203/metalurgi.v29i3.296

Abstract

PENGARUH KONSENTRASI x=0,35 TERHADAP SIFAT LISTRIK DAN MAGNETIK PADA KRISTAL TUNGGAL La2-2xSr1+2xMn2O7[Effect of Consentration of x=0.35 on the Electric and Magnetic Properties Of La2-2xSr1+2xMn2O7 Single] Agung Imaduddin
Metalurgi Vol 27, No 2 (2012): Metalurgi Vol. 27 No. 2 Agustus 2012
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (935.763 KB) | DOI: 10.14203/metalurgi.v27i2.140

Abstract

SIFAT ELEKTRON ATOM Mn DI STRUKTUR PEROVSKITE PADA KRISTAL TUNGGAL La2-2xSr1+2xMn2O7 (x= 0,40)[Electron Properties of Mn Atom on Perovskite Structure of La2-2xSr1+2xMn2O7 (x= 0,40) Single Crystal] Agung Imaduddin
Metalurgi Vol 27, No 3 (2012): Metalurgi Vol.27 No.3 Desember 2012
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (798.94 KB) | DOI: 10.14203/metalurgi.v27i3.300

Abstract

Co-Authors Anton Suryantoro Bintoro Siswayanti Florentinus firdiyono Franciska Pramuji Lestari Hendrik Hendrik Pius Sebleku Sigit Dwi Yudanto