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Amor M, Moreno Viedma V, Sarabi A, Grün NG, Itariu B, Leitner L, Steiner I, Bilban M, Kodama K, Butte AJ, Staffler G, Zeyda M, Stulnig TM. Identification of matrix metalloproteinase-12 as a candidate molecule for prevention and treatment of cardiometabolic disease. Mol Med 2016; 22:487-496. [PMID: 27385318 DOI: 10.2119/molmed.2016.00068] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 06/22/2016] [Indexed: 01/01/2023] Open
Abstract
Obesity is strongly associated with metabolic syndrome, a combination of risk factors that predispose to the development of the cardiometabolic diseases: atherosclerotic cardiovascular disease and type 2 diabetes mellitus. Prevention of metabolic syndrome requires novel interventions to address this health challenge. The objective of this study was the identification of candidate molecules for the prevention and treatment of insulin resistance and atherosclerosis, conditions that underlie type 2 diabetes mellitus and cardiovascular disease, respectively. We used an unbiased bioinformatics approach to identify molecules that are upregulated in both conditions by combining murine and human data from a microarray experiment and meta-analyses. We obtained a pool of eight genes that were upregulated in all the databases analysed. This included well known and novel molecules involved in the pathophysiology of type 2 diabetes mellitus and cardiovascular disease. Notably, matrix metalloproteinase 12 (MMP12) was highly ranked in all analyses and was therefore chosen for further investigation. Analyses of visceral and subcutaneous white adipose tissue from obese compared to lean mice and humans convincingly confirmed the up-regulation of MMP12 in obesity at mRNA, protein and activity levels. In conclusion, using this unbiased approach an interesting pool of candidate molecules was identified, all of which have potential as targets in the treatment and prevention of cardiometabolic diseases.
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Kamei K, Terao T, Katayama Y, Hatano K, Kodama K, Shirahama M, Sakai A, Hirakawa H, Mizokami Y, Shiotsuki I, Ishii N, Inoue Y. A Predictive Model of Plasma Lamotrigine Levels. PHARMACOPSYCHIATRY 2016; 49:182-185. [PMID: 27111132 DOI: 10.1055/s-0042-105570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Introduction: Lamotrigine is one of several mood stabilizers and its effects for the treatment and prevention of depressive episodes, particularly in bipolar disorder, are generally accepted. Although the findings about a therapeutic window of lamotrigine are yet to be determined, it seems important to obtain information on individual pharmacokinetic peculiarities. This study was conducted to formulate the predictive model of plasma lamotrigine levels. Methods: Using the data of 47 patients whose lamotrigine levels, liver function, and renal function were measured, predictive models of lamotrigine levels were formulated by stepwise multiple regression analyses. The predictive power of the models was compared using another dataset of 25 patients. Results: Two models were created using stepwise multiple regression. The first model was: plasma lamotrigine level (μg/mL)=2.308+0.019×lamotrigine dose (mg/day). The second model was: plasma lamotrigine level (μg/mL)=0.08+0.024×lamotrigine dose (mg/day)+4.088×valproate combination (no=0, yes=1). The predictive power of the second model was better than that of the first model. Discussion: The present study proposes a prompt and relatively accurate equation to predict lamotrigine levels.
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Andou M, Yamanaka A, Kodama K, Shirane A, Fukuta M. Suprapubic Transvesical Laparoscopic Repair for Vesico-Vaginal Fistula. J Minim Invasive Gynecol 2015; 22:S124. [DOI: 10.1016/j.jmig.2015.08.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yamanaka A, Andou M, Kodama K, Shirane A. Laparoscopic Resection of Uterosacral Ligaments in Deeply Infiltrating Endometriosis, Technique for the Prevention of Complications. J Minim Invasive Gynecol 2015; 22:S130. [DOI: 10.1016/j.jmig.2015.08.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Nagoya A, Jinnouchi R, Kodama K, Morimoto Y. DFT calculations on H, OH and O adsorbate formations on Pt(322) electrode. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.09.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Andou M, Yamanaka A, Kodama K, Shirane A, Fukuta M. Robotically-Assisted Radical Trachelectomy. J Minim Invasive Gynecol 2015; 22:S11-S12. [DOI: 10.1016/j.jmig.2015.08.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kodama K, Andou M, Shirane A, Yamanaka A. A Technique to Divide the Adnexal Ligaments for Huge Fibroids During Total Laparoscopic Hysterectomy. J Minim Invasive Gynecol 2015; 22:S146. [DOI: 10.1016/j.jmig.2015.08.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Ozasa K, Shimizu Y, Pham TM, Grant EJ, Sakata R, Sugiyama H, Sadakane A, Soda M, Kodama K. Radiation Risk of Mortality of Cancer and Noncancer Diseases in the Atomic-bomb Survivors. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Agafonova N, Aleksandrov A, Anokhina A, Aoki S, Ariga A, Ariga T, Bender D, Bertolin A, Bodnarchuk I, Bozza C, Brugnera R, Buonaura A, Buontempo S, Büttner B, Chernyavsky M, Chukanov A, Consiglio L, D'Ambrosio N, De Lellis G, De Serio M, Del Amo Sanchez P, Di Crescenzo A, Di Ferdinando D, Di Marco N, Dmitrievski S, Dracos M, Duchesneau D, Dusini S, Dzhatdoev T, Ebert J, Ereditato A, Fini RA, Fornari F, Fukuda T, Galati G, Garfagnini A, Goldberg J, Gornushkin Y, Grella G, Guler AM, Gustavino C, Hagner C, Hara T, Hayakawa H, Hollnagel A, Hosseini B, Ishiguro K, Jakovcic K, Jollet C, Kamiscioglu C, Kamiscioglu M, Kim JH, Kim SH, Kitagawa N, Klicek B, Kodama K, Komatsu M, Kose U, Kreslo I, Laudisio F, Lauria A, Ljubicic A, Longhin A, Loverre PF, Malgin A, Malenica M, Mandrioli G, Matsuo T, Matsushita T, Matveev V, Mauri N, Medinaceli E, Meregaglia A, Mikado S, Miyanishi M, Mizutani F, Monacelli P, Montesi MC, Morishima K, Muciaccia MT, Naganawa N, Naka T, Nakamura M, Nakano T, Nakatsuka Y, Niwa K, Ogawa S, Olchevsky A, Omura T, Ozaki K, Paoloni A, Paparella L, Park BD, Park IG, Pasqualini L, Pastore A, Patrizii L, Pessard H, Pistillo C, Podgrudkov D, Polukhina N, Pozzato M, Pupilli F, Roda M, Roganova T, Rokujo H, Rosa G, Ryazhskaya O, Sato O, Schembri A, Schmidt-Parzefall W, Shakirianova I, Shchedrina T, Sheshukov A, Shibuya H, Shiraishi T, Shoziyoev G, Simone S, Sioli M, Sirignano C, Sirri G, Sotnikov A, Spinetti M, Stanco L, Starkov N, Stellacci SM, Stipcevic M, Strolin P, Takahashi S, Tenti M, Terranova F, Tioukov V, Tufanli S, Vilain P, Vladymyrov M, Votano L, Vuilleumier JL, Wilquet G, Wonsak B, Yoon CS, Zemskova S. Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment. PHYSICAL REVIEW LETTERS 2015; 115:121802. [PMID: 26430986 DOI: 10.1103/physrevlett.115.121802] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Indexed: 06/05/2023]
Abstract
The OPERA experiment was designed to search for ν_{μ}→ν_{τ} oscillations in appearance mode, i.e., by detecting the τ leptons produced in charged current ν_{τ} interactions. The experiment took data from 2008 to 2012 in the CERN Neutrinos to Gran Sasso beam. The observation of the ν_{μ}→ν_{τ} appearance, achieved with four candidate events in a subsample of the data, was previously reported. In this Letter, a fifth ν_{τ} candidate event, found in an enlarged data sample, is described. Together with a further reduction of the expected background, the candidate events detected so far allow us to assess the discovery of ν_{μ}→ν_{τ} oscillations in appearance mode with a significance larger than 5σ.
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Grant EJ, Ozasa K, Ban N, de González AB, Cologne J, Cullings HM, Doi K, Furukawa K, Imaoka T, Kodama K, Nakamura N, Niwa O, Preston DL, Rajaraman P, Sadakane A, Saigusa S, Sakata R, Sobue T, Sugiyama H, Ullrich R, Wakeford R, Yasumura S, Milder CM, Shore RE. A report from the 2013 international symposium: the evaluation of the effects of low-dose radiation exposure in the life span study of atomic bomb survivors and other similar studies. HEALTH PHYSICS 2015; 108:551-556. [PMID: 25811153 DOI: 10.1097/hp.0000000000000262] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The RERF International Low-Dose Symposium was held on 5-6 December 2013 at the RERF campus in Hiroshima, Japan, to discuss the issues facing the Life Span Study (LSS) and other low-dose studies. Topics included the current status of low-dose risk detection, strategies for low-dose epidemiological and statistical research, methods to improve communication between epidemiologists and biologists, and the current status of radiological studies and tools. Key points made by the participants included the necessity of pooling materials over multiple studies to gain greater insight where data from single studies are insufficient; generating models that reflect epidemiological, statistical, and biological principles simultaneously; understanding confounders and effect modifiers in the current data; and taking into consideration less studied factors such as the impact of dose rate. It is the hope of all participants that this symposium be used as a trigger for further studies, especially those using pooled data, in order to reach a greater understanding of the health effects of low-dose radiation.
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Matsuo H, Kajihara M, Tomizawa D, Watanabe T, Saito AM, Fujimoto J, Horibe K, Kodama K, Tokumasu M, Itoh H, Nakayama H, Kinoshita A, Taga T, Tawa A, Taki T, Tanaka S, Adachi S. Prognostic implications of CEBPA mutations in pediatric acute myeloid leukemia: a report from the Japanese Pediatric Leukemia/Lymphoma Study Group. Blood Cancer J 2014; 4:e226. [PMID: 25014773 PMCID: PMC4219441 DOI: 10.1038/bcj.2014.47] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 05/19/2014] [Indexed: 11/30/2022] Open
Abstract
CCAAT/enhancer-binding protein alpha (CEBPA) mutations are a favorable prognostic factor in adult acute myeloid leukemia (AML) patients; however, few studies have examined their significance in pediatric AML patients. Here we examined the CEBPA mutation status and clinical outcomes of pediatric AML patients treated in the AML-05 study. We found that 47 (14.9%) of the 315 evaluable patients harbored mutations in CEBPA; 26 cases (8.3%) harbored a single mutation (CEBPA-single) and 21 (6.7%) harbored double or triple mutations (CEBPA-double). After excluding core-binding factor-AML cases, patients harboring CEBPA mutations showed better overall survival (OS; P=0.048), but not event-free survival (EFS; P=0.051), than wild-type patients. Multivariate analysis identified CEBPA-single and CEBPA-double as independent favorable prognostic factors for EFS in the total cohort (hazard ratio (HR): 0.47 and 0.33; P=0.02 and 0.01, respectively). CEBPA-double was also an independent favorable prognostic factor for OS (HR: 0.30; P=0.04). CEBPA-double remained an independent favorable factor for EFS (HR: 0.28; P=0.04) in the normal karyotype cohort. These results suggest that CEBPA mutations, particularly CEBPA-double, are an independent favorable prognostic factor in pediatric AML patients, which will have important implications for risk-stratified therapy.
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Katayama Y, Terao T, Kamei K, Hatano K, Kohno K, Makino M, Mizokami Y, Kodama K, Itoh H. Therapeutic Window of Lamotrigine for Mood Disorders: A Naturalistic Retrospective Study. PHARMACOPSYCHIATRY 2014; 47:111-4. [DOI: 10.1055/s-0034-1375618] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Watanabe D, Kudo SE, Hayashi S, Mori Y, Kodama K, Wakamura K, Miyachi H, Yamamura F, Ohtsuka K, Mikogami T, Kimura S, Fukuchi K, Ikehara N. Endocytoscopy provides an in vivo virtual histopathological diagnosis of Whipple's disease. Endoscopy 2014; 45 Suppl 2 UCTN:E143-4. [PMID: 23716103 DOI: 10.1055/s-0032-1326276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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Imai A, Komatsu S, Ohara T, Kamata T, Yoshida J, Miyaji K, Takewa M, Kobayashi Y, Ohe R, Kodama K. The impact of central obesity on accelerated progression of noncalcified coronary plaque assessed by coronary CT angiography: a 4-year-follow-up study. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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Uji S, Kodama K, Sugii K, Takahide Y, Terashima T, Kurita N, Tsuchiya S, Kohno M, Kimata M, Yamamoto K, Yakushi K. Kosterlitz-Thouless-type transition in a charge ordered state of the layered organic conductor α-(BEDT-TTF)2I3. PHYSICAL REVIEW LETTERS 2013; 110:196602. [PMID: 23705731 DOI: 10.1103/physrevlett.110.196602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Indexed: 06/02/2023]
Abstract
The current-voltage characteristics in the charge order state of the two-dimensional organic conductor α-(BEDT-TTF)(2)I(3) exhibit power law behavior at low temperatures. The power law is understood in terms of the electric-field-dependent potential between electrons and holes, which are thermally excited from the charge order state. The power law exponent steeply changes from 1 to 3 in the range from 30 to 45 K with decreasing temperature, thereby suggesting the occurrence of a Kosterlitz-Thouless-type transition; many (few) unbound electron-hole pairs are thermally excited above (below) the transition. The effects of the finite size and interlayer coupling on the power law behavior are discussed.
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Morishima K, Hamada K, Komatani R, Nakano T, Kodama K. Development of an automated nuclear emulsion analyzing system. RADIAT MEAS 2013. [DOI: 10.1016/j.radmeas.2012.06.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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42
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Okamoto K, Kodama K, Takase K, Nakamoto K, Coffey H, Selvaraj A, Smith P, Iwata M, Tsuruoka A. 307 Anti-tumor Activities of Lenvatinib Against RET Gene Fusion Driven Tumor Models. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72105-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Kobayashi H, Tanisaka K, Doi O, Kodama K, Higashiyama M, Nakagawa H, Miyake M, Taki T, Hara S, Yasutomi M, Hanatani Y, Kotake K, Kubota T. An in vitro chemosensitivity test for solid human tumors using collagen gel droplet embedded cultures. Int J Oncol 2012; 11:449-55. [PMID: 21528231 DOI: 10.3892/ijo.11.3.449] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In vitro chemosensitivity testing using a collagen gel droplet embedded culture drug sensitivity test (CD-DST), was conducted with several types of solid cancer. The overall evaluable rate was 80% (443/554), including 76% for lung (n=243), 78% for breast (n=110), 87% for gastric (n=62), 83% for colorectal (n=107) cancers and 88% for 32 metastatic brain tumors. The in vitro sensitivity of breast, gastric and colorectal cancers to mitomycin C (MMC), cisplatin (CDDP), 5-fluorouracil (5-FU) and doxorubicin (DXR) was similar to the efficacy rates reported for each drug. This was also observed with lung cancer, the sensitivity of which to MMC, CDDP, vindesine (VDS) and etoposide (VP-16) was similar to the clinical efficacy. The clinical response to chemotherapy was compared with the results of in vitro chemosensitivity testing in Il patients: the clinical correlation was 91%, with a 80% true positive and 100% true negative rate. These results suggest that the CD-DST may be clinically useful by allowing the prediction of clinical response in various solid cancers.
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Takeshita T, Tanii H, Zang XP, Saijoh K, Fujita Y, Kodama K, Kasagi F, Fujita S, Kishimoto M, Tanihara S, Ojima T, Oki I, Nakamura Y, Yanagawa H, Nose T, Momose Y, Kaetsu A, Ishii T, Shibata K, Miyazaki M, Moriyama M, Une H, Katakura M, Sugawara N, Miyai M. Abstracts from Japanese journal of hygiene(nihon eiseigaku zasshi) Vol.54 No.2. Environ Health Prev Med 2012; 4:97-100. [PMID: 21432180 DOI: 10.1007/bf02932002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Nishitsuji K, To H, Murakami Y, Kodama K, Kobayashi D, Yamada T, Kubo C, Mine K. Tandospirone in the treatment of generalised anxiety disorder and mixed anxiety-depression : results of a comparatively high dosage trial. Clin Drug Investig 2012; 24:121-6. [PMID: 17516698 DOI: 10.2165/00044011-200424020-00007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Kodama K, Ozasa K, Okubo T. Radiation and cancer risk in atomic-bomb survivors. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2012; 32:N51-N54. [PMID: 22394591 DOI: 10.1088/0952-4746/32/1/n51] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
With the aim of accurately assessing the effects of radiation exposure in the Japanese atomic-bomb survivors, the Radiation Effects Research Foundation has, over several decades, conducted studies of the Life Span Study (LSS) cohort, comprising 93 000 atomic-bomb survivors and 27 000 controls. Solid cancer: the recent report on solid cancer incidence found that at age 70 years following exposure at age 30 years, solid cancer rates increase by about 35% Gy(-1) for men and 58% Gy(-1) for women. Age-at-exposure is an important risk modifier. In the case of lung cancer, cigarette smoking has been found to be an important risk modifier. Radiation has similar effects on first-primary and second-primary cancer risks. Finally, radiation-associated increases in cancer rates appear to persist throughout life. Leukaemia: the recent report on leukaemia mortality suggests that radiation effects on leukaemia mortality persisted for more than 50 years. Moreover, significant dose-response for myelodysplastic syndrome was observed in Nagasaki LSS members even 40-60 years after radiation exposure. Future perspective: given the continuing solid cancer increase in the survivor population, the LSS will likely continue to provide important new information on radiation exposure and solid cancer risks for another 15-20 years, especially for those exposed at a young age.
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Tokunaga T, Higashiyama M, Okami J, Maeda J, Fujiwara A, Kodama K. ERRATUM for a missing eComment to 'Intrathoracic chemo-thermotherapy with radiofrequency waves after extrapleural pneumonectomy for malignant pleural mesothelioma': [Interact CardioVasc Thorac Surg 2011;13:267-270]. Interact Cardiovasc Thorac Surg 2011. [DOI: 10.1510/icvts.2011.270561a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Nishio M, Ueda Y, Matsuo K, Asai M, Nemoto T, Hirata A, Kashiwase K, Kodama K. Detection of disrupted plaques by coronary CT: comparison with angioscopy. Heart 2011; 97:1397-402. [DOI: 10.1136/hrt.2011.227181] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Kimata M, Terashima T, Kurita N, Satsukawa H, Harada A, Kodama K, Sato A, Imai M, Kihou K, Lee CH, Kito H, Eisaki H, Iyo A, Saito T, Fukazawa H, Kohori Y, Harima H, Uji S. Quasi-two-dimensional Fermi surfaces and coherent interlayer transport in KFe₂As₂. PHYSICAL REVIEW LETTERS 2010; 105:246403. [PMID: 21231539 DOI: 10.1103/physrevlett.105.246403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Indexed: 05/30/2023]
Abstract
We report the results of the angular-dependent magnetoresistance oscillations (AMROs), which can determine the shape of bulk Fermi surfaces (FSs) in quasi-two-dimensional (Q2D) systems, in a highly hole-doped Fe-based superconductor KFe2As2 with Tc ≈ 3.7 K. From the AMROs, we determined the two Q2D FSs with rounded-square cross sections, correspond to 12% and 17% of the first Brillouin zone. The rounded-squared shape of the FS cross section is also confirmed by the analyses of the interlayer transport under in-plane fields. From the obtained FS shape, we infer the character of the 3d orbitals that contribute to the FSs.
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Garcia-Barriocanal J, Cezar J, Bruno F, Thakur P, Brookes N, Utfeld C, Rivera-Calzada A, Giblin S, Taylor J, Duffy J, Dugdale S, Nakamura T, Kodama K, Leon C, Okamoto S, Santamaria J. Spin and orbital Ti magnetism at LaMnO3/SrTiO3 interfaces. Nat Commun 2010; 1:82. [DOI: 10.1038/ncomms1080] [Citation(s) in RCA: 148] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Accepted: 08/24/2010] [Indexed: 11/09/2022] Open
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